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Pálfi D, Chiovini B, Szalay G, Kaszás A, Turi GF, Katona G, Ábrányi-Balogh P, Szőri M, Potor A, Frigyesi O, Lukácsné Haveland C, Szadai Z, Madarász M, Vasanits-Zsigrai A, Molnár-Perl I, Viskolcz B, Csizmadia IG, Mucsi Z, Rózsa B. High efficiency two-photon uncaging coupled by the correction of spontaneous hydrolysis. Org Biomol Chem 2019; 16:1958-1970. [PMID: 29497727 DOI: 10.1039/c8ob00025e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-photon (TP) uncaging of neurotransmitter molecules is the method of choice to mimic and study the subtleties of neuronal communication either in the intact brain or in slice preparations. However, the currently available caged materials are just at the limit of their usability and have several drawbacks. The local and focal nature of their use may for example be jeopardized by a high spontaneous hydrolysis rate of the commercially available compounds with increased photochemical release rate. Here, using quantum chemical modelling we show the mechanisms of hydrolysis and two-photon activation, and synthesized more effective caged compounds. Furthermore, we have developed a new enzymatic elimination method removing neurotransmitters inadvertently escaping from their compound during experiment. This method, usable both in one and two-photon experiments, allows for the use of materials with an increased rate of photochemical release. The efficiency of the new compound and the enzymatic method and of the new compound are demonstrated in neurophysiological experiments.
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Affiliation(s)
- Dénes Pálfi
- Two-Photon Measurement Technology Research Group, The Faculty of Information Technology, Pázmány Péter Catholic University, Práter str 50, H-1083 Budapest, Hungary
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Könye R, Tóth G, Sólyomváry A, Mervai Z, Zürn M, Baghy K, Kovalszky I, Horváth P, Molnár-Perl I, Noszál B, Béni S, Boldizsár I. Chemodiversity of Cirsium fruits: Antiproliferative lignans, neolignans and sesquineolignans as chemotaxonomic markers. Fitoterapia 2018; 127:413-419. [PMID: 29653155 DOI: 10.1016/j.fitote.2018.04.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/04/2018] [Accepted: 04/05/2018] [Indexed: 11/29/2022]
Abstract
While analyzing the fruit composition of nine European Cirsium species representing three sections (i.e., Cephalonoplos, Chamaeleon and Eriolepis), four lignans, three neolignans and three sesquineolignans were determined and used as chemotaxonomic markers. Among them, desmethyl balanophonin and desmethyl picrasmalignan were determined for the first time in the plant kingdom, as the main metabolites of the Chamaeleon section. Prebalanophonin and prepicrasmalignan, identified so far exclusively in C. eriophorum, were also confirmed in C. boujartii and C. vulgare, highlighting the chemotaxonomic significance of these compounds in the Eriolepis section. The antiproliferative assay of the compounds isolated from their optimum sources, confirmed a dose-dependent inhibitory effect of the structures bearing the 4',7-epoxy moiety (balanophonin, picrasmalignan, desmethyl balanophonin, desmethyl picrasmalignan) against SW480 colon cancer cells, while those bearing the 4',7-dihydroxy motif (prebalanophonin, prepicrasmalignan) were inactive.
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Affiliation(s)
- Rita Könye
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest 1117, Hungary; Department of Pharmacognosy, Semmelweis University, Üllői út 26, Budapest 1085, Hungary
| | - Gergő Tóth
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre utca 7, Budapest 1092, Hungary
| | - Anna Sólyomváry
- Department of Pharmacognosy, Semmelweis University, Üllői út 26, Budapest 1085, Hungary
| | - Zsolt Mervai
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest 1085, Hungary
| | - Moritz Zürn
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest 1117, Hungary
| | - Kornélia Baghy
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest 1085, Hungary
| | - Ilona Kovalszky
- First Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllői út 26, Budapest 1085, Hungary
| | - Péter Horváth
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre utca 7, Budapest 1092, Hungary
| | - Ibolya Molnár-Perl
- Department of Analytical Chemistry, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest 1117, Hungary
| | - Béla Noszál
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre utca 7, Budapest 1092, Hungary
| | - Szabolcs Béni
- Department of Pharmacognosy, Semmelweis University, Üllői út 26, Budapest 1085, Hungary
| | - Imre Boldizsár
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest 1117, Hungary.
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Fodor B, Molnár-Perl I. The role of derivatization techniques in the analysis of plant cannabinoids by gas chromatography mass spectrometry. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.07.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Arkan T, Molnár-Perl I. Advances in the alkylsilyl derivatization of glyphosate and aminomethylphosphonic acid: A critical comeback to the N - tert .-butyldimethylsilyl- N -methyltrifluoroacetamide reagent. Microchem J 2017. [DOI: 10.1016/j.microc.2017.02.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sólyomváry A, Alberti Á, Darcsi A, Könye R, Tóth G, Noszál B, Molnár-Perl I, Lorántfy L, Dobos J, Őrfi L, Béni S, Boldizsár I. Optimized conversion of antiproliferative lignans pinoresinol and epipinoresinol: Their simultaneous isolation and identification by centrifugal partition chromatography and high performance liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1052:142-149. [PMID: 28384606 DOI: 10.1016/j.jchromb.2017.03.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 03/22/2017] [Accepted: 03/29/2017] [Indexed: 01/04/2023]
Abstract
High amount of the valuable lignan pinoresinol (PR) was determined in Carduus nutans fruit (7.8mg/g) for the first time. A preparative separation method using two consecutive, identical steps of centrifugal partition chromatography (CPC) was developed in order (i) to isolate PR and (ii) to subsequently isolate PR and its 7' epimer epipinoresinol (EPR) simultaneously after an optimized acid treatment which resulted in PR epimerization forming equal amounts of PR and EPR, from C. nutans fruit. As optimal conditions, a two-phase solvent system consisting of methyl tert-butyl ether:acetone:water (4:3:3, v/v/v) for CPC separation, and an acid treatment performed at 50°C for 30min for the epimerization were applied. Thus, 33.7mg and 32.8mg PR and EPR, in as high as 93.7% and 92.3% purity, were isolated from 10.0gC. nutans fruit, representing 86.4% and 84.1% efficiency, respectively. Conversion characteristic of PR and EPR in acidic medium, determined as a function of time and temperature of acid treatment provides their unambiguous identification by on-line high performance liquid chromatography (HPLC). Antiproliferative assay of isolated PR and EPR in two different types of colon cancer cell lines (HCT116 and SW480) confirmed that both epimers caused a more significant decrease of viability in HCT116 cells than in SW480 cells, suggesting their similar mechanism of antiproliferative action.
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Affiliation(s)
- Anna Sólyomváry
- Department of Pharmacognosy, Semmelweis University, 1085 Budapest, Üllői út 26, Hungary
| | - Ágnes Alberti
- Department of Pharmacognosy, Semmelweis University, 1085 Budapest, Üllői út 26, Hungary
| | - András Darcsi
- Department of Pharmacognosy, Semmelweis University, 1085 Budapest, Üllői út 26, Hungary
| | - Rita Könye
- Department of Pharmacognosy, Semmelweis University, 1085 Budapest, Üllői út 26, Hungary; Department of Plant Anatomy, Eötvös Lóránd University, 1117 Budapest, Pázmány Péter sétány 1/C, Hungary
| | - Gergő Tóth
- Department of Pharmaceutical Chemistry, Semmelweis University, 1092 Budapest, Hőgyes Endre u. 9, Hungary
| | - Béla Noszál
- Department of Pharmaceutical Chemistry, Semmelweis University, 1092 Budapest, Hőgyes Endre u. 9, Hungary
| | - Ibolya Molnár-Perl
- Institute of Chemistry, Eötvös Lóránd University, 1117 Budapest, Pázmány Péter sétány 1/A, Hungary
| | | | - Judit Dobos
- Vichem Chemie Research Ltd., 1022 Budapest, Herman Ottó út 15, Hungary
| | - László Őrfi
- Department of Pharmaceutical Chemistry, Semmelweis University, 1092 Budapest, Hőgyes Endre u. 9, Hungary; Vichem Chemie Research Ltd., 1022 Budapest, Herman Ottó út 15, Hungary
| | - Szabolcs Béni
- Department of Pharmacognosy, Semmelweis University, 1085 Budapest, Üllői út 26, Hungary
| | - Imre Boldizsár
- Department of Plant Anatomy, Eötvös Lóránd University, 1117 Budapest, Pázmány Péter sétány 1/C, Hungary.
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Molnár B, Fodor B, Csámpai A, Hidvégi E, Molnár-Perl I. Structure-related new approach in the gas chromatography/mass spectrometry analysis of cathinone type synthetic drugs. J Chromatogr A 2016; 1477:70-75. [DOI: 10.1016/j.chroma.2016.11.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Revised: 10/21/2016] [Accepted: 11/20/2016] [Indexed: 10/20/2022]
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Könye R, Ress ÁE, Sólyomváry A, Tóth G, Darcsi A, Komjáti B, Horváth P, Noszál B, Molnár-Perl I, Béni S, Boldizsár I. Enzyme-hydrolyzed Fruit of Jurinea mollis: A Rich Source of (-)-(8R,8′R)-Arctigenin. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601101011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In Jurinea mollis fruit, the dibenzylbutyrolactone-type lignan glycoside arctiin and its aglycone arctigenin were determined for the first time using a combination of optimized enzymatic treatment and complementary spectrometric (HPLC-MS, GC-MS) and spectroscopic (CD and NMR) methods. Analysis of separated fruit parts, i.e., the fruit wall and embryo, demonstrated the specific accumulation of arctiin, since it was exclusively found in the embryo. Arctiin in the embryo samples (71.5 mg/g) was found to be quantitatively converted into arctigenin (50.7 mg/g) by endogenous enzymatic hydrolysis, resulting in one of the highest arctigenin-containing plant tissues reported to date and allowing the selective isolation of arctigenin by our recently reported three-step isolation method. The absolute configuration of the isolated arctigenin was determined to be (-)-(8 R,8′ R). Conformational analysis of arctigenin was also performed, resulting in three major low energy conformations.
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Affiliation(s)
- Rita Könye
- Department of Pharmacognosy, Semmelweis University, Üllői út 26, Budapest 1085, Hungary
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest 1117, Hungary
| | - Ágnes Evelin Ress
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest 1117, Hungary
| | - Anna Sólyomváry
- Department of Pharmacognosy, Semmelweis University, Üllői út 26, Budapest 1085, Hungary
| | - Gergő Tóth
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre utca 7, Budapest 1092, Hungary
| | - András Darcsi
- Department of Pharmacognosy, Semmelweis University, Üllői út 26, Budapest 1085, Hungary
| | - Balázs Komjáti
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, Gellért tér 4, Budapest 1111, Hungary
| | - Péter Horváth
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre utca 7, Budapest 1092, Hungary
| | - Béla Noszál
- Department of Pharmaceutical Chemistry, Semmelweis University, Hőgyes Endre utca 7, Budapest 1092, Hungary
| | - Ibolya Molnár-Perl
- Department of Analytical Chemistry, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter sétány 1/A, Budapest 1117, Hungary
| | - Szabolcs Béni
- Department of Pharmacognosy, Semmelweis University, Üllői út 26, Budapest 1085, Hungary
| | - Imre Boldizsár
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest 1117, Hungary
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Arkan T, Csámpai A, Molnár-Perl I. Alkylsilyl derivatization of glyphosate and aminomethylphosphonic acid followed by gas chromatography mass spectrometry. Microchem J 2016. [DOI: 10.1016/j.microc.2015.11.027] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Sólyomváry A, Mervai Z, Tóth G, Ress ÁE, Noszál B, Molnár-Perl I, Baghy K, Kovalszky I, Boldizsár I. A simple and effective enrichment process of the antiproliferative lignan arctigenin based on the endogenous enzymatic hydrolysis of Serratula tinctoria and Arctium lappa fruits. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Molnár B, Fodor B, Boldizsár I, Molnár-Perl I. Quantitative Silylation Speciations of Primary Phenylalkyl Amines, Including Amphetamine and 3,4-Methylenedioxyamphetamine Prior to Their Analysis by GC/MS. Anal Chem 2015; 87:10188-92. [DOI: 10.1021/acs.analchem.5b02599] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Borbála Molnár
- Doctoral
School of Pharmaceutical Sciences, Semmelweis University, 1085, Üllői út 26, Budapest, Hungary
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Faludi T, Balogh C, Serfőző Z, Molnár-Perl I. Analysis of phenolic compounds in the dissolved and suspended phases of Lake Balaton water by gas chromatography-tandem mass spectrometry. Environ Sci Pollut Res Int 2015; 22:11966-11974. [PMID: 26006075 DOI: 10.1007/s11356-015-4734-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/14/2015] [Indexed: 06/04/2023]
Abstract
As a novel approach to characterize the phenolic pollutants of Lake Balaton (Central Europe, western Hungary), 26 endocrine disrupting phenols (chlorophenols, nitrophenols, alkylphenols, triclosan, bisphenol-A) were quantified in dissolved and suspended particulate matter (SPM) phases, alike. Sample collection was performed in the western and eastern basins, at 20 sites in April and October 2014. Solid-phase and ultrasound-assisted extractions to withdraw target phenols from dissolved and suspended phases were employed. Compounds were derivatized with hexamethyldisilazane and trifluoroacetic acid for their quantification as trimethylsilyl derivatives by gas chromatography-tandem mass spectrometry. In Lake Balaton's dissolved phase, 2-chlorophenol (103-164 ng/L), 4-chlorophenol (407-888 ng/L), 2,4-dichlorophenol (20.2-72.0 ng/L), 2,4,6-trichlorophenol (10.4-38.1 ng/L), 2-nitrophenol (31.0-66.5 ng/L), 4-nitrophenol (31.5-94.1 ng/L), and bisphenol-A (20.6-112 ng/L), while in its SPM, 4-chlorophenol (<LOQ-1274 μg/kg, dry matter), 4-nitrophenol (423-714 μg/kg), 4-nonylphenol isomers (1500-2910 μg/kg), and bisphenol-A (250-587 μg/kg) were determined. Since phenolics appear partially or exclusively in the SPM, the analysis of both phases proved to be of primary importance. Graphical Abstract ᅟ.
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Affiliation(s)
- T Faludi
- Institute of Chemistry, Department of Analytical Chemistry, L. Eötvös University, 1518, Budapest 112, P.O. Box 32, Hungary
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Sólyomváry A, Tóth G, Komjáti B, Horváth P, Kraszni M, Noszál B, Molnár-Perl I, Boldizsár I. Identification and isolation of new neolignan and sesquineolignan species: Their acid-catalyzed ring closure and specific accumulation in the fruit wall of Cirsium eriophorum (L.) Scop. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.01.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Mervai Z, Sólyomváry A, Tóth G, Noszál B, Molnár-Perl I, Baghy K, Kovalszky I, Boldizsár I. Endogenous enzyme-hydrolyzed fruit of Cirsium brachycephalum: Optimal source of the antiproliferative lignan trachelogenin regulating the Wnt/β-Catenin signaling pathway in the SW480 colon adenocarcinoma cell line. Fitoterapia 2015; 100:19-26. [DOI: 10.1016/j.fitote.2014.10.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2014] [Revised: 10/22/2014] [Accepted: 10/26/2014] [Indexed: 10/24/2022]
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Molnár B, Csámpai A, Molnár-Perl I. Hexamethyldisilazane as an Acylation Generator for Perfluorocarboxylic Acids in Quantitative Derivatization of Primary Phenylalkyl Amines Confirmed by GC/MS and Computations. Anal Chem 2014; 87:848-52. [DOI: 10.1021/ac503786j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Borbála Molnár
- Doctoral School
of Pharmaceutical Sciences, Semmelweis University, 1085, Üllői út 26, Budapest, Hungary
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Nagy ZM, Molnár M, Fekete-Kertész I, Molnár-Perl I, Fenyvesi É, Gruiz K. Removal of emerging micropollutants from water using cyclodextrin. Sci Total Environ 2014; 485-486:711-719. [PMID: 24775808 DOI: 10.1016/j.scitotenv.2014.04.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Revised: 04/01/2014] [Accepted: 04/01/2014] [Indexed: 04/15/2023]
Abstract
Small scale laboratory experiment series were performed to study the suitability of a cyclodextrin-based sorbent (ß-cyclodextrin bead polymer, BCDP) for modelling the removal of micropollutants from drinking water and purified waste water using simulated inflow test solutions containing target analytes (ibuprofen, naproxen, ketoprofen, bisphenol-A, diclofenac, β-estradiol, ethinylestradiol, estriol, cholesterol at 2-6 μg/L level). This work was focused on the preliminary evaluation of BCDP as a sorbent in two different model systems (filtration and fluidization) applied for risk reduction of emerging micropollutants. For comparison different filter systems combined with various sorbents (commercial filter and activated carbon) were applied and evaluated in the filtration experiment series. The spiked test solution (inflow) and the treated outflows were characterized by an integrated methodology including chemical analytical methods gas chromatography-tandem mass spectrometry (GC-MS/MS) and various environmental toxicity tests to determine the efficiency and selectivity of the applied sorbents. Under experimental conditions the cyclodextrin-based filters used for purification of drinking water in most cases were able to absorb more than 90% of the bisphenol-A and of the estrogenic compounds. Both the analytical chemistry and toxicity results showed efficient elimination of these pollutants. Especially the toxicity of the filtrate decreased considerably. Laboratory experiment modelling post-purification of waste water was also performed applying fluidization technology by ß-cyclodextrin bead polymer. The BCDP removed efficiently from the spiked test solution most of the micropollutants, especially the bisphenol-A (94%) and the hormones (87-99%) The results confirmed that the BCDP-containing sorbents provide a good solution to water quality problems and they are able to decrease the load and risk posed by micropollutants to the water systems.
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Affiliation(s)
- Zsuzsanna Magdolna Nagy
- Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary.
| | - Mónika Molnár
- Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary
| | - Ildikó Fekete-Kertész
- Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary
| | - Ibolya Molnár-Perl
- Cooperative Research Center for Environmental Sciences, Eötvös Loránd University, Pázmány Péter sétány 1/A, H-1117 Budapest, Hungary
| | - Éva Fenyvesi
- CycloLab Cyclodextrin R&D Laboratory Ltd., Illatos út 7., H-1097 Budapest, Hungary
| | - Katalin Gruiz
- Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary
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Sólyomváry A, Mervai Z, Molnár-Perl I, Boldizsár I. Specific hydrolysis and accumulation of antiproliferative lignans in the fruit ofLeuzea carthamoides(Willd.) DC. Nat Prod Res 2014; 28:732-9. [DOI: 10.1080/14786419.2013.879473] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Faludi T, Andrási N, Vasanits-Zsigrai A, Záray G, Molnár-Perl I. Systematic derivatization, mass fragmentation and acquisition studies in the analysis of chlorophenols, as their silyl derivatives by gas chromatography–mass spectrometry. J Chromatogr A 2013; 1302:133-42. [DOI: 10.1016/j.chroma.2013.06.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 06/04/2013] [Accepted: 06/06/2013] [Indexed: 12/21/2022]
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Szokol-Borsodi L, Sólyomváry A, Molnár-Perl I, Boldizsár I. Optimum yields of dibenzylbutyrolactone-type lignans from Cynareae fruits, during their ripening, germination and enzymatic hydrolysis processes, determined by on-line chromatographic methods. Phytochem Anal 2012; 23:598-603. [PMID: 22396124 DOI: 10.1002/pca.2360] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2011] [Revised: 01/17/2012] [Accepted: 01/26/2012] [Indexed: 05/31/2023]
Abstract
INTRODUCTION Dibenzylbutyrolactone-type lignans are the physiologically active constituents of the achene fruits of Cynareae. These lignans occur in glycoside/aglycone forms: in the highest quantity of the arctiin/arctigenin, matairesinoside/matairesinol and tracheloside/trachelogenin pairs found in the fruits of Arctium lappa L., Centaurea scabiosa L. and Cirsium arvense (L.) Scop. OBJECTIVE To optimise the extraction yield of the arctiin/arctigenin, matairesinoside/matairesinol and tracheloside/trachelogenin glycoside/aglycone pairs, from the fruits of Arctium lappa, Centaurea scabiosa and Cirsium arvense, under the ripening, germination and enzymatic hydrolysis processes of the fruits. METHODOLOGY Identification and quantification of lignans were performed with on-line gas chromatography-mass spectrometry (GC-MS) and with high performance liquid chromatography (HPLC), both with UV and mass selective detections (HPLC-UV/MS). RESULTS As novelties to the field it was confirmed that: (i) the unripe fruits provide a high amount of lignans, similar to the ripe fruit; (ii) the fruits of Arctium lappa and Cirsium arvense do have glycosidase activity to hydrolyse their lignan glycosides into free lignans; (iii) the glycosidase of Centaurea scabiosa fruit becomes activated under its germination process only; and (iv) the overwhelming part of the fruits lignan contents (80-94%) in all three species are accumulated in the embryo. CONCLUSION The best sources of (i) lignan aglycones are the enzyme-hydrolysed embryos, separating spontaneously during the germination process, and (ii) lignan glycosides are the unripe fruits.
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Affiliation(s)
- Lilla Szokol-Borsodi
- Department of Plant Anatomy, Institute of Biology, Eötvös Loránd University, Pázmány Péter sétány 1/C, Budapest, 1117, Hungary
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Boldizsár I, Kraszni M, Tóth F, Tóth G, Sólyomváry A, Noszál B, Záray G, Molnár-Perl I. The role of harmonized, gas and liquid chromatography mass spectrometry in the discovery of the neolignan balanophonin in the fruit wall of Cirsium vulgare. J Chromatogr A 2012; 1264:143-7. [DOI: 10.1016/j.chroma.2012.09.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2012] [Revised: 07/25/2012] [Accepted: 09/10/2012] [Indexed: 10/27/2022]
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Boldizsár I, Füzfai Z, Molnár-Perl I. Characteristic fragmentation patterns of trimethylsilyl and trimethylsilyl-oxime derivatives of plant disaccharides as obtained by gas chromatography coupled to ion-trap mass spectrometry. J Chromatogr A 2011; 1218:7864-8. [DOI: 10.1016/j.chroma.2011.08.060] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 08/16/2011] [Accepted: 08/18/2011] [Indexed: 11/26/2022]
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Molnár-Perl I. Advancement in the derivatizations of the amino groups with the o-phthaldehyde-thiol and with the 9-fluorenylmethyloxycarbonyl chloride reagents. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:1241-69. [DOI: 10.1016/j.jchromb.2011.01.027] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Revised: 11/19/2010] [Accepted: 01/24/2011] [Indexed: 11/29/2022]
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22
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Andrási N, Helenkár A, Záray G, Vasanits A, Molnár-Perl I. Derivatization and fragmentation pattern analysis of natural and synthetic steroids, as their trimethylsilyl (oxime) ether derivatives by gas chromatography mass spectrometry: Analysis of dissolved steroids in wastewater samples. J Chromatogr A 2011; 1218:1878-90. [DOI: 10.1016/j.chroma.2011.01.051] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Revised: 01/13/2011] [Accepted: 01/17/2011] [Indexed: 12/29/2022]
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Boldizsár I, Kraszni M, Tóth F, Noszál B, Molnár-Perl I. Complementary fragmentation pattern analysis by gas chromatography-mass spectrometry and liquid chromatography tandem mass spectrometry confirmed the precious lignan content of Cirsium weeds. J Chromatogr A 2010; 1217:6281-9. [PMID: 20813375 DOI: 10.1016/j.chroma.2010.08.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Revised: 08/05/2010] [Accepted: 08/06/2010] [Indexed: 11/27/2022]
Abstract
In this paper, as novelties to the field, it is confirmed at first, that the fruits of Cirsium species, regarded as injurious weeds, do contain lignans, two, different butyrolactone-type glycoside/aglycone pairs: the well known arctiin/arctigenin and the particularly rare tracheloside/trachelogenin species. These experiences were supported by gas chromatography-mass spectrometry (GC-MS), by liquid chromatography tandem mass spectrometry (LC-MS/(MS)) and by nuclear magnetic resonance (NMR) spectroscopy. The study reflects the powerful impact of the complementary chromatographic mass fragmentation evidences resulting in the identification and quantification, the extremely rare, with on line technique not yet identified and described, tracheloside/trachelogenin pair lignans, without authentic standard compounds. Fragmentation pattern analysis of the trimethylsilyl (TMS) derivative of trachelogenin, based on GC-MS, via two different fragmentation pathways confirmed the detailed structure of the trachelogenin molecule. The complementary chromatographic evidences have been unambiguously confirmed, by (1)H and (13)C NMR analysis of trachelogenin, isolated by preparative chromatography. Identification and quantification of the fruit extracts of four Cirsium (C.) species (C. arvense, C. canum, C. oleraceum, and C. palustre), revealed that (i) all four species do accumulate the tracheloside/trachelogenin or the arctiin/arctigenin butyrolactone-type glycoside/aglycone pairs, (ii) the overwhelming part of lignans are present as glycosides (tracheloside 9.1-14.5 mg/g, arctiin 28.6-39.3 mg/g, expressed on dry fruit basis), (iii) their acidic and enzymatic hydrolyses to the corresponding aglycones, to trachelogenin and arctigenin are fast and quantitative and (iv) the many-sided beneficial trachelogenin and arctigenin can be prepared separately, without impurities, excellent for medicinal purposes.
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Affiliation(s)
- I Boldizsár
- Institute of Biology, Department of Plant Anatomy, L. Eötvös University, Budapest 1117, Pázmány Péter sétány 1/C, Hungary
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Helenkár A, Sebők Á, Záray G, Molnár-Perl I, Vasanits-Zsigrai A. The role of the acquisition methods in the analysis of the non-steroidal anti-inflammatory drugs in Danube River by gas chromatography - mass spectrometry. Talanta 2010; 82:600-7. [DOI: 10.1016/j.talanta.2010.05.014] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 04/28/2010] [Accepted: 05/10/2010] [Indexed: 10/19/2022]
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25
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Boldizsár I, Füzfai Z, Tóth F, Sedlák É, Borsodi L, Molnár-Perl I. Mass fragmentation study of the trimethylsilyl derivatives of arctiin, matairesinoside, arctigenin, phylligenin, matairesinol, pinoresinol and methylarctigenin: Their gas and liquid chromatographic analysis in plant extracts. J Chromatogr A 2010; 1217:1674-82. [DOI: 10.1016/j.chroma.2010.01.019] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Revised: 12/16/2009] [Accepted: 01/08/2010] [Indexed: 11/15/2022]
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26
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Jámbor A, Molnár-Perl I. Quantitation of amino acids in plasma by high performance liquid chromatography: simultaneous deproteinization and derivatization with 9-fluorenylmethyloxycarbonyl chloride. J Chromatogr A 2009; 1216:6218-23. [PMID: 19631330 DOI: 10.1016/j.chroma.2009.06.083] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2009] [Revised: 06/25/2009] [Accepted: 06/30/2009] [Indexed: 12/01/2022]
Abstract
This paper, as a novelty to this field, presents the deproteinization and derivatization of plasma's free amino acids (PFAAs), simultaneously, in a single step, with the acetonitrile (ACN) containing 9-fluorenylmethyloxycarbonyl chloride (FMOC) reagent. Deproteinization and derivatization, were studied with 22 amino acids, applying photodiode array (DAD) and fluorescence (FL) detection, simultaneously. Model investigations have been carried out as a function of the FMOC concentration, reaction time and reaction conditions: with standard solutions, with human plasma samples in its initial condition and fortified with standard amino acids (excluding tryptophan because it co-elutes with the hydrolyzed FMOC). Reproducibilities of 22 amino acids, including both histidine and tyrosine derivatives, obtained under optimum derivatization conditions are presented (at 3.0 mM FMOC concentration, at pH 9; derivatization time - 20 min), and characterized with the relative standard deviation percentages of their responses (<or=4.4%, RSD). Quantitation limit (LOQ) of amino acid FMOC derivatives proved to be 2.5 pmol, except for cystine, ornithine (5 pmol) and for the total of tyrosines (N-FMOC-tyrosine and N,O-FMOC-tyrosine 10 pmol).
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Affiliation(s)
- A Jámbor
- Institute of Chemistry, Department of Analytical Chemistry, L. Eötvös University, H-1518, Budapest 112, Hungary
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Jámbor A, Molnár-Perl I. Amino acid analysis by high-performance liquid chromatography after derivatization with 9-fluorenylmethyloxycarbonyl chloride. J Chromatogr A 2009; 1216:3064-77. [DOI: 10.1016/j.chroma.2009.01.068] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2008] [Revised: 01/20/2009] [Accepted: 01/23/2009] [Indexed: 10/21/2022]
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Sebők Á, Vasanits-Zsigrai A, Helenkár A, Záray G, Molnár-Perl I. Multiresidue analysis of pollutants as their trimethylsilyl derivatives, by gas chromatography–mass spectrometry. J Chromatogr A 2009; 1216:2288-301. [DOI: 10.1016/j.chroma.2009.01.056] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 01/16/2009] [Accepted: 01/19/2009] [Indexed: 11/25/2022]
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Sedlák É, Boldizsár I, Borsodi L, Füzfai Z, Molnár-Perl I, Preininger É, Gyurján I. Identification and Quantification of Lignans, Carboxylic Acids and Sugars in the Leaves of Forsythia Species and Cultivars. Chromatographia 2008. [DOI: 10.1365/s10337-008-0738-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Sebok A, Vasanits-Zsigrai A, Palkó G, Záray G, Molnár-Perl I. Identification and quantification of ibuprofen, naproxen, ketoprofen and diclofenac present in waste-waters, as their trimethylsilyl derivatives, by gas chromatography mass spectrometry. Talanta 2008; 76:642-50. [PMID: 18585333 DOI: 10.1016/j.talanta.2008.04.008] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2007] [Revised: 04/01/2008] [Accepted: 04/07/2008] [Indexed: 11/28/2022]
Abstract
This paper reports a derivatization, mass fragmentation study relating to the most common, non-steroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, naproxen, ketoprofen and diclofenac, identified and quantified in the aquatic environment. Derivatizations have been performed with four silylation reagents in order to select the most proper one, taking into account analytical and financial points of view, equally. The tested reagents were N,O-bis(trimethylsilyl)trifluoroacetamide (BSTFA), N-methyl-N-(trimethylsilyl)trifluoroacetamide (MSTFA), N-methyl-N-tert-butyldimethylsilyl-trifluoroacetamide (MTBSTFA) and for this purpose at the first time, hexamethyldisilazan (HMDS)+trifluoroacetic acid (TFAA). Varying derivatization time and temperature, taking into consideration chemical and financial advantages, HMDS+TFAA proved to be the optimum selection. Responses of derivatives have been compared, as a function of the ionization technique (external/internal ionization), as well as on the treatment of compounds' selective fragment ions (SFIs): (i) extracting the corresponding, characteristic m/z masses from TIC elutions and (ii) from SIM elutions, in parallel. Reproducibilities of measurements, expressed in relative standard deviation percentages (R.S.D.%), including the nanogram and the low picogram levels of injected derivatives, provided an average between 0.93 R.S.D.% and 4.11 R.S.D.%. NSAIDs' enrichment was performed with solid-phase extraction (SPE), applying the Oasis HLB (Waters) cartridges: recoveries in the 1-6 microg L(-1) range varied between 84% and 111%, with an average reproducibility of 6.4 R.S.D.%. The utility of the optimized derivatization method is presented, on monthly basis, by the identification and quantitation of the ibuprofen, naproxen, ketoprofen and diclofenac content of the influent and effluent waste-water samples obtained from a Hungarian waste-water treatment plant.
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Affiliation(s)
- A Sebok
- Institute of Chemistry, Department of Analytical Chemistry, L. Eötvös University, Hungary
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Füzfai Z, Boldizsár I, Molnár-Perl I. Characteristic fragmentation patterns of the trimethylsilyl and trimethylsilyl–oxime derivatives of various saccharides as obtained by gas chromatography coupled to ion-trap mass spectrometry. J Chromatogr A 2008; 1177:183-9. [DOI: 10.1016/j.chroma.2007.11.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2007] [Revised: 11/06/2007] [Accepted: 11/12/2007] [Indexed: 11/16/2022]
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Hanczkó R, Jámbor A, Perl A, Molnár-Perl I. Advances in the o-phthalaldehyde derivatizations. J Chromatogr A 2007; 1163:25-42. [PMID: 17606270 DOI: 10.1016/j.chroma.2007.06.013] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2007] [Revised: 05/20/2007] [Accepted: 06/08/2007] [Indexed: 11/30/2022]
Abstract
The main aims of this work were (a) to present the characteristics and stability of the o-phthalaldehyde (OPA)-ethanethiol (ET) derivatives of 22 amino acids, including the believed-to-be less stable OPA derivatives providing glycine, gamma-aminobutyric acid, beta-alanine, histidine, ornithine, lysine and the C(1)-C(5) aliphatic amines; (b) to compare the stability properties of the most common amino acids and amines as OPA-ET-fluorenylmethyl chloroformate (FMOC) derivatives to the corresponding ones obtained from OPA reagents containing various (SH)-additives; (c) to show the molar responses of alanine and lysine depending on the OPA reagent's composition; as well as (d) to prove the practical utility of these basic researches, by the simultaneous HPLC separation of 22 amino acids and 15 amines as their OPA-ET-FMOC derivatives. Investigations have been carried out by varying the composition of the reagents, the molar ratios of reactants and the reaction time, applying diode array and fluorescence detections simultaneously. Average reproducibility of quantitations, characterized with the relative standard deviations (RSDs) based on the fluorescence intensities of derivatives, in the order of listing, proved to be 1.2-5.9% for amino acids and 1.1-8.7% for amines. The practical utility of the method is demonstrated by the analysis of the amino acid and amine contents of mouse tissues, with an average reproducibility of 3.5%.
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Affiliation(s)
- R Hanczkó
- Institute of Chemistry, Department of Analytical Chemistry, L. Eötvös University, PO Box 32, H-1518 Budapest 112, Hungary
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Füzfai Z, Molnár-Perl I. Gas chromatographic–mass spectrometric fragmentation study of flavonoids as their trimethylsilyl derivatives: Analysis of flavonoids, sugars, carboxylic and amino acids in model systems and in citrus fruits. J Chromatogr A 2007; 1149:88-101. [PMID: 17289064 DOI: 10.1016/j.chroma.2007.01.060] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2006] [Revised: 01/11/2007] [Accepted: 01/18/2007] [Indexed: 10/23/2022]
Abstract
The fragmentation patterns and quantitation possibilities of three anthocyanidins (pelargonidin, cyanidin, malvidin), one flavonol (quercetin), two flavones (apigenin, luteolin) and two flavanones (naringenin, hesperetin) have been investigated as trimethylsilyl and as trimethylsilyl (oxime) derivatives by gas chromatography-mass spectrometry. Results proved that anthocyanidins and flavanones form trimethylsilyl (oximes), while flavonol and flavones provide simple trimethylsilyl derivatives. In all cases, characteristic fragments of high masses are formed proper for quantitation purposes. Hydrolysis conditions for naringin, hesperidin and rutin have been optimized, resulting in the quantitative release of naringenin, hesperetin and quercetin together with their corresponding saccharides. These basic studies made possible the identification and quantification of the flavonoid, carboxylic-/amino acid and sugar constituents of citrus fruit juices and albedos, without any extraction/enrichment procedure. In total 33 compounds have been determined in hydrolyzed samples, such as 2 flavonoids (naringenin and hesperetin), 6 phenolic acids (trimethoxybenzoic, 4-hydroxybenzoic, vanillic, quinic, chlorogenic and rosmarinic acids), 3 aliphatic carboxylic acids (levulinic, malic, citric acids), phosphoric acid, 4 amino acids (aspartic, glutamic acids, alanine, proline), 9 monosaccharides (xylose, arabinose, rhamnose, fucose, fructose, galactose, glucose, galacturonic acid, sedoheptulose), inositol, sugarphosphate, 5 disaccharides and tocopherol. Measurements were carried out as the trimethylsilyl (oxime) ether/ester derivatives of constituents, in the concentration range of 2 x 10(-3) to 49.9%. Identification level of samples varied between 26.4 and 77.5%, expressed in dry matter content of juices and albedos.
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Affiliation(s)
- Zs Füzfai
- Institute of Chemistry, Department of Analytical Chemistry, L. Eötvös University, Budapest 112, Hungary
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35
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Korös A, Hanczkó R, Jámbor A, Qian Y, Perl A, Molnár-Perl I. Analysis of amino acids and biogenic amines in biological tissues as their o-phthalaldehyde/ethanethiol/fluorenylmethyl chloroformate derivatives by high-performance liquid chromatography. A deproteinization study. J Chromatogr A 2006; 1149:46-55. [PMID: 17145062 DOI: 10.1016/j.chroma.2006.11.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2006] [Revised: 11/02/2006] [Accepted: 11/07/2006] [Indexed: 11/28/2022]
Abstract
The extraction of ornithine, lysine, putrescine, cadaverine, 1,7-diaminoheptane, spermidine and spermine from biological tissues was optimized for HPLC quantitation as their o-phthalaldehyde/ethanethiol/fluorenylmethyl chloroformate (OPA/ET/FMOC) derivatives. In applying perchloric acid deproteinization two approaches have been followed: (i) deproteinization with subsequent neutralization by potassium hydroxide and lyophilization, and (ii) deproteinization without neutralization and lyophilization. Neutralization and lyophilization resulted in the loss of free biogenic amines. HPLC analysis of ornithine (Orn), lysine (Lys), putrescine (Put), cadaverine (Cad), 1,7-diaminoheptane (Dah), spermidine (Spd) and spermine (Spm) content of biological tissues as their OPA/ET/FMOC derivatives was performed in the supernatant of perchloric acid-deproteinized samples (model solutions and tissues) with an average reproducibility of < or =2.6% relative standard deviation (RSD), including recovery of sample treatment and chromatography.
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Affiliation(s)
- A Korös
- Institute of Chemistry, Department of Analytical Chemistry, L. Eötvös University, Budapest, Hungary
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Boldizsár I, Szucs Z, Füzfai Z, Molnár-Perl I. Identification and quantification of the constituents of madder root by gas chromatography and high-performance liquid chromatography. J Chromatogr A 2006; 1133:259-74. [PMID: 16962601 DOI: 10.1016/j.chroma.2006.08.021] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2006] [Revised: 08/08/2006] [Accepted: 08/10/2006] [Indexed: 11/24/2022]
Abstract
The possibilities in the identification and quantitation of the constituents of Rubia tinctorum L.'s root, called also madder root, was described and compared by gas chromatography (GC)-MS, high-performance liquid chromatography (HPLC)-UV/photodiode array detection (DAD) and HPLC-MS: chromatographic analyses were carried out in parallel, from the same samples/extracts/hydrolyzates. Anthraquinone glycosides, anthraquinones, carboxylic acids and sugars were determined directly in the presence of the matrix and in its extracts without and subsequently to hydrolyses. Hydrolyses were performed as a function of time, with hydrochloric and trifluoroacetic acids, as well as enzymatically. Data revealed that as hydrolyzing agent trifluoroacetic acid is to be preferred. Madder root's anthraquinones (pseudopurpurin/purpurin, alizarin, lucidin, munjistin, nordamnacanthal) were identified on the basis of their absorption spectra (HPLC-DAD) and fragmentation patterns by GC-MS and HPLC-MS, equally. Reproducibility of anthraquinone's quantitation, by HPLC-DAD and GC-MS, in the concentration ranges of 4 x 10(-5) to 3 x 10(-2)g/g dried sample, provided an average reproducibility of 4.2% (varying between 0.9 and 9.4% relative standard deviation (RSD percentages)). Carboxylic acids (malic, citric, quinic, rosmarinic acids) and saccharides (xylose, ribose, fructose, glucose, sucrose, primverose) were quantified as their trimethylsilyl (oxime) ether/ester derivatives by GC-MS, in the concentration ranges of 10(-5)g to 10(-2)g/g dried sample, with an average reproducibility of 4.7% RSD.
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Affiliation(s)
- I Boldizsár
- Department of Plant Anatomy, L. Eötvös University, Pázmány Péter sétány 1/C, Budapest 1117, Hungary
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Kakasy A, Füzfai Z, Kursinszki L, Molnár-Perl I, Lemberkovics É. Analysis of Non-volatile Constituents in Dracocephalum Species by HPLC and GC-MS. Chromatographia 2006. [DOI: 10.1365/s10337-006-0741-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Hanczko R, Kőrös Á, Tóth F, Molnár-Perl I. Erratum to “Behavior and characteristics of biogenic amines, ornithine and lysine derivatized with the o-phthalaldehyde–ethanethiol–fluorenylmethyl chloroformate reagent” [J. Chromatogr. A 1087 (2005) 210–222]. J Chromatogr A 2005. [DOI: 10.1016/j.chroma.2005.08.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Hanczko R, Korös A, Tóth F, Molnár-Perl I. Behavior and characteristics of biogenic amines, ornithine and lysine derivatized with the o-phthalaldehyde–ethanethiol–fluorenylmethyl chloroformate reagent. J Chromatogr A 2005; 1087:210-22. [PMID: 16130716 DOI: 10.1016/j.chroma.2004.12.056] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The stability and characteristics of the ornithine (Orn), lysine (Lys), putrescine (Put), cadaverine (Cad), 1,7-diaminoheptane (Diah), spermidine (Spd) and spermine (Spm) derivatives obtained with the o-phthalaldehyde (OPA)-ethanethiol (ET)-fluorenylmethyl chloroformate (FMOC) reagent has been investigated. The stoichiometry of the introduced, two-step derivatization process has been followed by photodiode array (DAD) and fluorescence (FL) detections, simultaneously, while the composition of derivatives was confirmed by on-line HPLC-electrospray ionization (ESI) MS measurements. Depending on the composition of the OPA reagents, in addition to the secondary amino group-containing Spd and Spm, under common aqueous conditions also Orn and Lys do react with FMOC resulting in derivatives of various compositions. Applying the OPA-ET reagent of increasing methanol (Met) content (38-80%, v/v) the formation of the FMOC group containing Orn and Lys derivatives could be considerably decreased. Optimum elution condition (18 min, including equilibration) was developed for the simultaneous quantitation of Orn, Lys, Put, Cad, Diah, Spd and Spm, in the presence of the rest of protein amino acids. The practical utility of the method was demonstrated by the analysis of mouse tissues. Average reproducibility of quantitations, characterized with the relative standard deviation percentages of fluorescence intensities and UV responses, in order of listing, proved to be 2.1% and 2.1%, respectively.
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Affiliation(s)
- R Hanczko
- Institute of Inorganic and Analytical Chemistry, L. Eötvös University, H-1518, Budapest 112, P.O. Box 32, Hungary
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Abstract
An overview is presented of chromatographic methods currently in use to determine flavonoids, including free aglycones, their corresponding glycosides, one by one, and, in the presence of each other. As a basis of selection, the following approaches can be distinguished: critical evaluation of the preliminary steps (extraction/isolation and hydrolysis) as well as the separation, identification and quantitation of constituents both on the basic research level and/or subsequently to various work up procedures. Chromatographic techniques were discussed after extraction/isolation of various flavonoids from several natural matrices. Papers were classified and compared from analytical point of view, primarily on the chromatographic, secondly on the detection techniques applied.
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Affiliation(s)
- I Molnár-Perl
- Institute of Inorganic and Analytical Chemistry, L. Eötvös University, Budapest 112, H-1518, PO Box 32, Hungary.
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Füzfai Z, Katona ZF, Kovács E, Molnár-Perl I. Simultaneous identification and quantification of the sugar, sugar alcohol, and carboxylic acid contents of sour cherry, apple, and ber fruits, as their trimethylsilyl derivatives, by gas chromatography-mass spectrometry. J Agric Food Chem 2004; 52:7444-52. [PMID: 15675786 DOI: 10.1021/jf040118p] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Our gas chromatography-mass spectrometry method--developed for the simultaneous quantitation of mono-, di-, and trisaccharides, sugar alcohols, caboxylic and amino acids, measured as their trimethylsilyl-(oxime) ether/ester derivatives, from one solution by a single injection, prepared in the presence of the fruit matrix--has been extended/utilized for special purposes. The compositions of (i) freshly harvested and stored sour cherries (Prunus cerasus), (ii) apples obtained from organic and integrated productions (Malus domestica), and (iii) green and ripe bers (Zizyphus mauritiana L.) were compared. On the basis of earlier, basic researches (derivatization, quantitation, and fragmentation studies of authentic compounds), we demonstrate the reproducible quantitation of the main and minor constituents in a wide concentration range (approximately 1 x 10(-)(3) to >/=40%, in total up to < or =98%, calculated on dry matter basis of the fruit matrices). Reproducibility of quantitations, calculated on the basis of their total ion current values, provided an average reproducibility of 3.3 (sour cherries), 6.2 (apple), and 4.3 (ber) RSD %, respectively.
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Affiliation(s)
- Zsófia Füzfai
- Institute of Inorganic and Analytical Chemistry, L. Eötvös University, H-1518, Budapest 112, POB 32, Hungary
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Abstract
The irregular behavior of histidine in its reaction with the o-phthaldialdehyde (OPA) reagents has been studied. Histidine provides more than one OPA derivative. Similarly to all those primary amino group-containing compounds that do have in their initial structure the -CH2-NH2 moiety. The ratio of histidine's initially formed and transformed OPA derivatives depends on the temperature: very likely due to the fact that elevated temperature favors the intra-molecular rearrangement of histidine resulting in the formation of the -CH2-NH2 moiety-containing tautomer(s). The higher the temperature the higher the amount of the transformed species. The composition of the initially and transformed OPA derivatives of histidine were identified on the basis of their on-line HPLC-electrospray ionization (ESI) MS spectra and computations. The initially formed species has been identified as the classical isoindole, while the transformed one contains an additional OPA molecule.
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Affiliation(s)
- A Csámpai
- Institute of Inorganic and Analytical Chemistry, L. Eötvös University, P.O. Box 32, H-1518 Budapest 112, Hungary
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Hanczkó R, Kutlán D, Tóth F, Molnár-Perl I. Behavior and characteristics of the o-phthaldialdehyde derivatives of n-C6–C8 amines and phenylethylamines with four additive SH-containing reagents. J Chromatogr A 2004; 1031:51-66. [PMID: 15058567 DOI: 10.1016/j.chroma.2003.11.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The stability and characteristics of the C6-C8 n-aliphatic and phenylethylamines have been investigated as their o-phthaldialdehyde (OPA)/3-mercaptopropionic acid, OPA/N-acetyl-L-cysteine, OPA/2-mercaptoethanol and OPA/ethanethiol derivatives. Stoichiometric studies have been followed by photodiode array and fluorescence detection, simultaneously, while the composition of derivatives was confirmed by on line HPLC-electrospray ionization (ESI)-MS measurements. All four amines having in their original structure the NH2-CH2- moiety in accordance with the C1-C4 aliphatic, mono and diamines and amino acids of the same structure--furnished more than one OPA derivative: their initially formed isoindoles transform to further ones. Depending on the composition of the OPA reagents and on the pH of derivatizations different type of transformed species have been identified, in various proportions. Applying the OPA/SH additive reagent in the molar ratio of 1/3, favors the formation of one additional OPA molecule-containing isoindole, while using the OPA/SH additive (1/50) reagent resulted in the formation of one additional SH additive-containing species, identified and measured at the first time by HPLC. Transformation rate and stability of derivatives proved to be associated with the composition of the OPA reagent, with the type of the SH additive, with the pH of derivatizations, and, in selected cases also with the chain length of the amine. Results of stoichiometric and mechanism studies have been utilized to define optimum analytical conditions.
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Affiliation(s)
- R Hanczkó
- Institute of Inorganic and Analytical Chemistry, L. Eötvös University, P.O. Box 32, H-1518 Budapest 112, Hungary
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Molnár-Perl I. Quantitation of amino acids and amines in the same matrix by high-performance liquid chromatography, either simultaneously or separately. J Chromatogr A 2003; 987:291-309. [PMID: 12613824 DOI: 10.1016/s0021-9673(02)01537-6] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A literature overview is presented of chromatographic methods currently in use to determine amino acids and mines (i) simultaneously, (ii) in the presence of each other by separate methods, or (iii) amines alone subsequent to their isolation from amino acids. Separation, derivatization and chromatographic conditions are summarized. Advantages and drawbacks of all three possibilities are discussed and criticized in detail.
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Affiliation(s)
- I Molnár-Perl
- Institute of Inorganic and Analytical Chemistry, L. Eötvös University, P.O. Box 32, H-1518 Budapest 112, Hungary.
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Kutlán D, Molnár-Perl I. New aspects of the simultaneous analysis of amino acids and amines as their o-phthaldialdehyde derivatives by high-performance liquid chromatography. Analysis of wine, beer and vinegar. J Chromatogr A 2003; 987:311-22. [PMID: 12613825 DOI: 10.1016/s0021-9673(02)01538-8] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A new high-performance liquid chromatography method is described for the simultaneous quantitation of amino acids and amines for 37 compounds (20 amino acids + 17 amines), as their o-phthaldialdehyde (OPA)-3-mercaptopropionic acid derivatives, within 53 min. Based on previously documented stoichiometric and reaction mechanism studies, derivatizations have been carried out with the OPA-SH-group = 1:50 containing reagents. Reliability and reproducibility of analyses have been considerably improved. Average reproducibility data in a wide concentration range of derivatives had RSD < or = 3.4%.
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Affiliation(s)
- D Kutlán
- Institute of Inorganic and Analytical Chemistry, L. Eötvös University, P.O. Box 32, H-1518 Budapest 112, Hungary
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Presits P, Molnár-Perl I. HPLC of tryptophan and its metabolites using simultaneously UV, native fluorescence and pre-column fluorescence derivatization. Chromatographia 2003. [DOI: 10.1007/bf02492089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Hanczkó R, Molnár-Perl I. Derivatization, stability and chromatographic behavior ofo-phthaldialdehyde amino acid and amine derivatives:o-Phthaldialdehyde/ 2-mercaptoethanol reagent. Chromatographia 2003. [DOI: 10.1007/bf02492091] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mengerink Y, Kutlán D, Tóth F, Csámpai A, Molnár-Perl I. Advances in the evaluation of the stability and characteristics of the amino acid and amine derivatives obtained with the o-phthaldialdehyde/3-mercaptopropionic acid and o-phthaldialdehyde/N-acetyl-L-cysteine reagents. High-performance liquid chromatography-mass spectrometry study. J Chromatogr A 2002; 949:99-124. [PMID: 11999763 DOI: 10.1016/s0021-9673(01)01282-1] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The composition of the amino acid and amine derivatives obtained with the o-phthaldialdehyde (OPA)/3-mercaptopropionic acid (MPA) and with the OPA/N-acetyl-L-cysteine (NAC) reagents was investigated by on-line HPLC-electrospray ionization MS. The initially formed derivatives proved to be, as expected, the corresponding isoindoles while their transformed species contained one additional OPA molecule. Based on the MS spectra of all transformed OPA derivatives a reaction pathway is suggested. This reaction mechanism was supported both by the molecular ions of the endproducts and by the presence of several selective fragment ions that served as an explanation to the structure of the believed to be less stable OPA derivatives. It has been shown that more than one OPA derivative forms in all those cases when the compound to be derivatized does contain the NH2-CH2-R moiety. Thus, amino acids like e.g. glycine, histidine, beta-alanine, gamma-aminobutyric acid, epsilon-aminocaproic acid, ornithine, and also several aliphatic mono- and diamines provide more than one OPA derivative. Analytical consequences of this experience were utilized by altering the reagent's composition. Reagents containing mole ratios of [OPA]/[MPA] or [OPA]/[NAC]=1/50 resulted in two benefits, simultaneously: (i) in a decrease of the transformation rate of the initially formed derivative, and, (ii) in an increase of the overall stability of the total of derivatives.
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Affiliation(s)
- Y Mengerink
- DSM Research, Competence Center Molecular Identification and Quantification, Geleen, The Netherlands
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Kutlán D, Presits P, Molnár-Perl I. Behavior and characteristics of amine derivatives obtained with o-phthaldialdehyde/3-mercaptopropionic acid and with o-phthaldialdehyde/N-acetyl-L-cysteine reagents. J Chromatogr A 2002; 949:235-48. [PMID: 11999740 DOI: 10.1016/s0021-9673(01)01610-7] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A comprehensive evaluation of papers dealing with the HPLC quantitation of amines as o-phthaldialdehyde (OPA) derivatives has been given and discussed in details. The stability and characteristics of selected representatives of mono [methyl-, ethyl-, n-/isopropyl, n-/isobutyl-, tert.-butyl-, sec.-butyl-, isoamyl amines and ethanolamine), di- and polyamines (ethylenediamine, 1,2-propylenediamine, 1,3-propylenediamine, agmatine, tyramine, putrescine, cadaverine, histamine, spermine, spermidine, and bis(hexamethylene)triamine] have been investigated as their OPA/3-mercaptopropionic acid (MPA) and OPA/N-acetyl-L-cysteine (NAC) derivatives, from an analytical point of view, performing photodiode array and fluorescence detection, simultaneously. All amines having in their original structure the NH2-CH2-R moiety, in accord with the amino acids of the same structure, furnished more than one OPA derivative: their initially formed species transformed to further ones. On the basis of on-line HPLC-MS the transformed derivatives were proved to be the corresponding isoindoles that contain an additional OPA molecule. In order to achieve optimum analytical conditions derivatization reagents have been applied in different composition, in parallel. The OPA and the SH-group additive contents of the reagents have been varied in the mole ratios of OPA/MPA(NAC)=1:3 and OPA/MPA(NAC)=1:50. Data obtained proved that performing derivatizations by means of the OPA/MPA(NAC)=1:50 reagents resulted in two benefits: both the stability of derivatives could have been increased and the number of the transformed derivatives decreased. In case of aliphatic amines and in ethanolamine, the transformation of the initially formed derivative can be either quantitatively avoided as in the case of ethanolamine, or considerably decreased, below 1%, as in the cases of the other aliphatic monoamines investigated. As to the behavior of di- and polyamines the stability of derivatives has been considerably improved, the number of species have been decreased from four to two with the exception of spermidine. Stability values characterized both by the UV and fluorescence responses, as a function of the reaction time (from 90 s up to 6 h) have been given in details.
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Affiliation(s)
- D Kutlán
- Institute of Inorganic and Analytical Chemistry, L. Eötvös University, Budapest, Hungary
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Molnár-Perl I. Derivatization and chromatographic behavior of the o-phthaldialdehyde amino acid derivatives obtained with various SH-group-containing additives. J Chromatogr A 2001; 913:283-302. [PMID: 11355824 DOI: 10.1016/s0021-9673(00)01200-0] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An overview is presented of HPLC methods currently in use to determine amino acids as their o-phthaldialdyde derivatives in the presence of various SH-group-containing additives. Crucial points that proved to influence the stability of the amino acid OPA derivatives have been discussed in detail: (i) the mol ratios of the OPA-SH-group-containing additive amino acid; (ii) the preparation and storage conditions of the OPA reagents; (iii) the optimum pH conditions for the interactions and elutions; (iv) the behavior of the, believed to be, less stable amino acids, such as glycine, beta-alanine, gamma-aminobutyric acid, histidine, ornithine and lysine.
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Affiliation(s)
- I Molnár-Perl
- Institute of Inorganic and Analytical Chemistry, L. Eötvös University, Budapest, Hungary.
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