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Altunay N, Hazer B, Farooque Lanjwani M, Tuzen M, Ul Haq H, Boczkaj G. Ultrasound assisted dispersive solid phase microextraction using polystyrene-polyoleic acid graft copolymer for determination of Sb(III) in various bottled beverages by HGAAS. Food Chem 2023; 425:136523. [PMID: 37295209 DOI: 10.1016/j.foodchem.2023.136523] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
A new polyoleic acid-polystyrene (PoleS) block/graft copolymer was synthesized and applied as adsorbent for ultrasound assisted dispersive solid phase microextraction (UA-DSPME) of Sb(III) in different bottled beverages and analysis using hydride generation atomic absorption spectrometry (HGAAS). Adsorption capacity of the PoleS was 150 mg g-1. Several sample preparation parameters such as sorbent amount, solvent type, pH, sample volume and shaking time were optimized (based on central composite design (CCD) approach) and evaluated in respect to the recovery of Sb(III). The method revealed a high tolerance limit of matrix ions presence. Under optimized conditions, linearity range, the limit of detection, the limit of quantitation, extraction recovery, enhancement factor, preconcentration factor were 5-800 ng L-1, 1.5 ng L-1, 5.0 ng L-1, 96%, 82, 90, respectively. Accuracy of the UA-DSPME method was confirmed based on different certified reference materials and standard addition method. Factorial design was utilized to estimate the influences of variables of recovery of Sb(III).
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Affiliation(s)
- Nail Altunay
- Sivas Cumhuriyet University, Faculty of Science, Department of Chemistry, Sivas, Turkey
| | - Baki Hazer
- Kapadokya University, Department of Aircraft Airframe Engine Maintenance, Mustafapaşa Kasabası, 50420 Ürgüp, Turkey; Zonguldak Bülent Ecevit University, Departments of Chemistry/Nano Technology Engineering, 67100 Zonguldak, Turkey
| | - Muhammad Farooque Lanjwani
- Tokat Gaziosmanpasa University, Faculty of Science and Arts, Chemistry Department, 60250 Tokat, Turkey; Dr M. A. Kazi Institute of Chemistry, University of Sindh, Jamshoro, Sindh, Pakistan
| | - Mustafa Tuzen
- Tokat Gaziosmanpasa University, Faculty of Science and Arts, Chemistry Department, 60250 Tokat, Turkey.
| | - Hameed Ul Haq
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, 80 - 233 Gdansk, G. Narutowicza St. 11/12, Poland
| | - Grzegorz Boczkaj
- Gdansk University of Technology, Faculty of Civil and Environmental Engineering, Department of Sanitary Engineering, 80 - 233 Gdansk, G. Narutowicza St. 11/12, Poland
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2
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Zengin H, Gürkan R. Novel amide- and imide-co-polymers modified with sulfathiazole as efficient chelator for selective extraction, pre-concentration and determination of trace inorganic antimony (as Sb(III)) from edible vegetable oils by ultrasound assisted-cloud point extraction coupled to micro-volume UV-spectrophotometry. J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2022.104931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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3
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Gomez NA, Lorenzetti AS, Camiña J, Garrido M, Domini CE. In-syringe ultrasound-assisted dispersive liquid–liquid microextraction for the fluorescent determination of aluminum in water and milk samples. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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4
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Manousi N, Kabir A, Furton KG, Anthemidis AN. Dual Lab-in-Syringe Flow-Batch Platform for Automatic Fabric Disk Sorptive Extraction/Back-extraction as a Front End to Inductively Coupled Plasma Atomic Emission Spectrometry. Anal Chem 2022; 94:12943-12947. [PMID: 36098462 DOI: 10.1021/acs.analchem.2c02268] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel dual lab-in-syringe flow-batch (D-LIS-FB) platform for automatic fabric-disk-in-syringe sorptive extraction followed by oxidative back-extraction as a front end to inductively coupled plasma atomic emission spectrometry (ICP-AES) is presented for the first time. Sol-gel poly(caprolactone)-poly(dimethylsiloxane)-poly(caprolactone)-coated polyester fabric disks were packed at the top of the glass barrel of a microsyringe pump as an alternative to column preconcentration. Herein lie multiple significant advantages including effectiveness, compactness, lower back-pressure, and lower time of analysis. Copper, lead, and cadmium were used as model analytes for the exploration of the capabilities of the developed platform. The online retained metal-diethyldithiophosphate complexes were eluted using diisopropyl ketone prior to atomization. Undesirable incompatibility of organic solvents for direct injection into the ICP-AES system was overcome ingeniously in a flow manner by oxidative back-extraction of the analytes utilizing a second lab-in-syringe setup. Following its optimization, the D-LIS-FB platform showed excellent linearity, in combination with good method precision (i.e., RSD < 3.4%) and trueness. Moreover, the limits of detection were 0.25 μg L-1 for Cd(II), 0.13 μg L-1 for Cu(II), and 0.37 μg L-1 for Pb(II), confirming the applicability of the proposed system for metal analysis at trace levels. As a proof-of-concept, the developed versatile system was utilized for the analysis of different environmental, food, and biological samples.
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Affiliation(s)
- Natalia Manousi
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Abuzar Kabir
- International Forensic Research Institute, Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33131, United States
| | - Kenneth G Furton
- International Forensic Research Institute, Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33131, United States
| | - Aristidis N Anthemidis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
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5
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A review on extraction, preconcentration and speciation of metal ions by sustainable cloud point extraction. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107150] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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6
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Jakavula S, Biata NR, Dimpe KM, Pakade VE, Nomngongo PN. Magnetic Ion Imprinted Polymers (MIIPs) for Selective Extraction and Preconcentration of Sb(III) from Environmental Matrices. Polymers (Basel) 2021; 14:21. [PMID: 35012044 PMCID: PMC8747241 DOI: 10.3390/polym14010021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/14/2021] [Accepted: 12/15/2021] [Indexed: 12/15/2022] Open
Abstract
Antimony(III) is a rare element whose chemical and toxicological properties bear a resemblance to those of arsenic. As a result, the presence of Sb(III) in water might have adverse effects on human health and aquatic life. However, Sb(III) exists at very ultra-trace levels which may be difficult for direct quantification. Therefore, there is a need to develop efficient and reliable selective extraction and preconcentration of Sb(III) in water systems. Herein, a selective extraction and preconcentration of trace Sb(III) from environmental samples was achieved using ultrasound assisted magnetic solid-phase extraction (UA-MSPE) based on magnetic Sb(III) ion imprinted polymer-Fe3O4@SiO2@CNFs nanocomposite as an adsorbent. The amount of antimony in samples was determined using inductively coupled plasma optical emission spectrometry (ICP-OES). The UA-MSPE conditions were investigated using fractional factorial design and response surface methodology based on central composite design. The Sb(III)-IIP sorbent displayed excellent selectivity towards Sb(III) as compared to NIIP adsorbent. Under optimised conditions, the enrichment factor, limit of detection (LOD) and limit of quantification (LOQ) of UA-MSPE/ICP-OES for Sb(III) were 71.3, 0.13 µg L-1 and 0.44 µg L-1, respectively. The intra-day and inter-day precision expressed as relative standard deviations (%RSDs, n = 10 and n = 5) were 2.4 and 4.7, respectively. The proposed analytical method was applied in the determination of trace Sb(III) in environmental samples. Furthermore, the accuracy of the method was evaluated using spiked recovery experiments and the percentage recoveries ranged from 95-98.3%.
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Affiliation(s)
- Silindokuhle Jakavula
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, Doornfontein 2028, South Africa; (S.J.); (N.R.B.); (K.M.D.)
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
| | - Nkositetile Raphael Biata
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, Doornfontein 2028, South Africa; (S.J.); (N.R.B.); (K.M.D.)
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
| | - Kgogobi M. Dimpe
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, Doornfontein 2028, South Africa; (S.J.); (N.R.B.); (K.M.D.)
| | - Vusumzi Emmanuel Pakade
- Department of Chemistry, Vaal University of Technology, Private Bag X 021, Vanderbijlpark 1911, South Africa;
| | - Philiswa Nosizo Nomngongo
- Department of Chemical Sciences, Doornfontein Campus, University of Johannesburg, Doornfontein 2028, South Africa; (S.J.); (N.R.B.); (K.M.D.)
- Department of Science and Innovation-National Research Foundation South African Research Chair Initiative (DSI-NRF SARChI), Nanotechnology for Water, University of Johannesburg, Doornfontein 2028, South Africa
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Vardar Sezgin H, Dilgin Y, Gökçel Hİ. Speciation of antimony in anti-leishmanial drug using two different chemical receptors and adsorptive anodic stripping voltammetry on glassy carbon electrode. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-020-02731-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Stankova AV, Elokhov AM, Kudryashova OS, Lesnov AE. Temperature-Induced Transformation of Phase Diagrams for Water–Oxyethylated Nonylphenol–MgCl2 Systems. RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023620120177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Karlıdağ NE, Toprak M, Tekin Z, Bakırdere S. Zirconium nanoparticles based ligandless dispersive solid phase extraction for the determination of antimony in bergamot and mint tea samples by slotted quartz tube-flame atomic absorption spectrophotometry. J Food Compost Anal 2020. [DOI: 10.1016/j.jfca.2020.103583] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Dugheri S, Mucci N, Bonari A, Marrubini G, Cappelli G, Ubiali D, Campagna M, Montalti M, Arcangeli G. Liquid phase microextraction techniques combined with chromatography analysis: a review. ACTA CHROMATOGR 2020. [DOI: 10.1556/1326.2019.00636] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Sample pretreatment is the first and the most important step of an analytical procedure. In routine analysis, liquid–liquid microextraction (LLE) is the most widely used sample pre-treatment technique, whose goal is to isolate the target analytes, provide enrichment, with cleanup to lower the chemical noise, and enhance the signal. The use of extensive volumes of hazardous organic solvents and production of large amounts of waste make LLE procedures unsuitable for modern, highly automated laboratories, expensive, and environmentally unfriendly. In the past two decades, liquid-phase microextraction (LPME) was introduced to overcome these drawbacks. Thanks to the need of only a few microliters of extraction solvent, LPME techniques have been widely adopted by the scientific community. The aim of this review is to report on the state-of-the-art LPME techniques used in gas and liquid chromatography. Attention was paid to the classification of the LPME operating modes, to the historical contextualization of LPME applications, and to the advantages of microextraction in methods respecting the value of green analytical chemistry. Technical aspects such as description of methodology selected in method development for routine use, specific variants of LPME developed for complex matrices, derivatization, and enrichment techniques are also discussed.
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Affiliation(s)
- Stefano Dugheri
- 1 Industrial Hygiene and Toxicology Laboratory, Careggi University Hospital, Florence, Italy
| | - Nicola Mucci
- 2 Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Alessandro Bonari
- 2 Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | | | - Giovanni Cappelli
- 2 Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Daniela Ubiali
- 3 Department of Drug Sciences, University of Pavia, Pavia, Italy
| | - Marcello Campagna
- 4 Department of Medical Sciences and Public Health, University of Cagliari, Cagliari, Italy
| | - Manfredi Montalti
- 2 Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Giulio Arcangeli
- 2 Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
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Horstkotte B, Solich P. The Automation Technique Lab-In-Syringe: A Practical Guide. Molecules 2020; 25:E1612. [PMID: 32244706 PMCID: PMC7181287 DOI: 10.3390/molecules25071612] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 03/28/2020] [Accepted: 03/28/2020] [Indexed: 12/28/2022] Open
Abstract
About eight years ago, a new automation approach and flow technique called "Lab-In-Syringe" was proposed. It was derived from previous flow techniques, all based on handling reagent and sample solutions in a flow manifold. To date Lab-In-Syringe has evidently gained the interest of researchers in many countries, with new modifications, operation modes, and technical improvements still popping up. It has proven to be a versatile tool for the automation of sample preparation, particularly, liquid-phase microextraction approaches. This article aims to assist newcomers to this technique in system planning and setup by overviewing the different options for configurations, limitations, and feasible operations. This includes syringe orientation, in-syringe stirring modes, in-syringe detection, additional inlets, and addable features. The authors give also a chronological overview of technical milestones and a critical explanation on the potentials and shortcomings of this technique, calculations of characteristics, and tips and tricks on method development. Moreover, a comprehensive overview of the different operation modes of Lab-In-Syringe automated sample pretreatment is given focusing on the technical aspects and challenges of the related operations. We further deal with possibilities on how to fabricate required or useful system components, in particular by 3D printing technology, with over 20 different elements exemplarily shown. Finally, a short discussion on shortcomings and required improvements is given.
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Affiliation(s)
- Burkhard Horstkotte
- Department of Analytical Chemistry, Charles University, Faculty of Pharmacy, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic;
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Ferreira SL, Junior JBP, Almeida LC, Santos LB, Lemos VA, Novaes CG, de Oliveira OM, Queiroz AF. Strategies for inorganic speciation analysis employing spectrometric techniques–Review. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104402] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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14
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Rocha FR, Zagatto EA. Flow analysis during the 60 years of Talanta. Talanta 2020; 206:120185. [DOI: 10.1016/j.talanta.2019.120185] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 07/26/2019] [Accepted: 07/27/2019] [Indexed: 01/01/2023]
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15
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Zagatto EA, Rocha FR. The multiple facets of flow analysis. A tutorial. Anal Chim Acta 2020; 1093:75-85. [DOI: 10.1016/j.aca.2019.09.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 09/03/2019] [Accepted: 09/09/2019] [Indexed: 12/16/2022]
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16
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Šrámková IH, Horstkotte B, Fikarová K, Sklenářová H, Solich P. Direct-immersion single-drop microextraction and in-drop stirring microextraction for the determination of nanomolar concentrations of lead using automated Lab-In-Syringe technique. Talanta 2018; 184:162-172. [PMID: 29674029 DOI: 10.1016/j.talanta.2018.02.101] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 02/21/2018] [Accepted: 02/24/2018] [Indexed: 12/18/2022]
Abstract
Two operational modes for Lab-In-Syringe automation of direct-immersion single-drop microextraction have been developed and critically compared using lead in drinking water as the model analyte. Dithizone was used in the presence of masking additives as a sensitive chromogenic complexing reagent. The analytical procedure was carried out inside the void of an automatic syringe pump. Normal pump orientation was used to study extraction in a floating drop of a toluene-hexanol mixture. Placing the syringe upside-down allowed the use of a denser-than-water drop of chloroform for the extraction. A magnetic stirring bar was placed inside the syringe for homogenous mixing of the aqueous phase and enabled in-drop stirring in the second configuration while resulting in enhanced extraction efficiency. The use of a syringe as the extraction chamber allowed drop confinement and support by gravitational differences in the syringe inlet. Keeping the stirring rates low, problems related to solvent dispersion such as droplet collection were avoided. With a drop volume of 60 µL, limits of detection of 75 nmol L-1 and 23 nmol L-1 were achieved for the floating drop extraction and the in-drop stirring approaches, respectively. Both methods were characterized by repeatability with RSD typically below 5%, quantitative analyte recoveries, and analyte selectivity achieved by interference masking. Operational differences were critically compared. The proposed methods permitted the routine determination of lead in drinking water to be achieved in less than 6 min.
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Affiliation(s)
- Ivana H Šrámková
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Burkhard Horstkotte
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
| | - Kateřina Fikarová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Hana Sklenářová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
| | - Petr Solich
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic
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Cerdà V, Ferrer L, Portugal LA, de Souza CT, Ferreira SL. Multisyringe flow injection analysis in spectroanalytical techniques – A review. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.10.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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18
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de Andrade JK, de Andrade CK, Felsner ML, Quináia SP, dos Anjos VE. Pre-concentration and speciation of inorganic antimony in bottled water and natural water by cloud point extraction with Electrothermal Atomic Absorption Spectrometry. Microchem J 2017. [DOI: 10.1016/j.microc.2017.03.043] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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Soares S, Melchert WR, Rocha FRP. A flow-based procedure exploiting the lab-in-syringe approach for the determination of ester content in biodiesel and diesel/biodiesel blends. Talanta 2017; 174:556-561. [PMID: 28738622 DOI: 10.1016/j.talanta.2017.06.053] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 06/15/2017] [Accepted: 06/18/2017] [Indexed: 11/19/2022]
Abstract
The ester content is an important parameter to be monitored in biodiesel for evaluation of the transesterification reaction yield and for assessing the purity of the final product. This is also a relevant quality parameter in diesel/biodiesel blends to avoid frauds, because legislation establishes a minimum amount of biodiesel to be added to diesel. The official method EN14103 requires the addition of an alternative internal standard (methyl nonadecanoate) for analysis of biodiesel from bovine tallow because the methyl heptadecanoate is found in high amounts in this product. In this work, it is proposed a fast, simple, practical, and environmental friendly flow-based spectrophotometric procedure, which exploits the formation of the violet complex between Fe(III) and the hydroxamate generated by the reactions of the alkyl esters with hydroxylamine. All involved steps are carried out inside the syringe pump of a sequential injection analyzer (lab-in-syringe approach). A single phase is attained by using ethanol as mediator solvent between the organic sample and aqueous soluble reagents. Linear responses for biodiesel samples and diesel/biodiesel blends were obtained from 4-99%(v/v) to 2.0-40%(v/v) methyl esters, described by the equations: A = 0.342 + 0.00305C (r = 0.997) and A = 0.174 + 0.00503C (r = 0.999), respectively. The analytical curve can be obtained by in-line dilution of a methyl linoleate stock solution. For biodiesel samples, the coefficient of variation (n = 10), limit of detection (99.7% confidence level), and sampling rate were estimated at 0.8%, 0.36%(v/v), and 15h-1, respectively, whereas the corresponding values for the blend samples were 0.20%, 0.03%(v/v), and 12h-1, respectively. The procedure consumes only 860μg of hydroxylamine, 366μg of Fe2(SO4)3·H2O, and 2.0mL ethanol and generates ca. 3.0mL of residue per determination. The results agreed with those obtained by official methods EN14103/2011 e EN14078, at the 95% confidence level.
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Affiliation(s)
- Samara Soares
- Center for Nuclear Energy in Agriculture, University of São Paulo, Av. Centenário, 303, 13416-000 Piracicaba, SP, Brazil
| | - Wanessa R Melchert
- College of Agriculture "Luiz de Queiroz", University of São Paulo, PO Box 9, 13418-970 Piracicaba, SP, Brazil
| | - Fábio R P Rocha
- Center for Nuclear Energy in Agriculture, University of São Paulo, Av. Centenário, 303, 13416-000 Piracicaba, SP, Brazil.
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Hui BY, Raoov M, Zain NNM, Mohamad S, Osman H. Combination of Cyclodextrin and Ionic Liquid in Analytical Chemistry: Current and Future Perspectives. Crit Rev Anal Chem 2017; 47:454-467. [DOI: 10.1080/10408347.2017.1320936] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Boon Yih Hui
- Integrative Medicine Cluster, Advanced Medical & Dental Institute, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Muggundha Raoov
- Integrative Medicine Cluster, Advanced Medical & Dental Institute, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Nur Nadhirah Mohamad Zain
- Integrative Medicine Cluster, Advanced Medical & Dental Institute, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Sharifah Mohamad
- Department of Chemistry, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
- Universiti Malaya Centre for Ionic Liquids (UMCiL), Department of Chemistry, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Hasnah Osman
- School of Chemical Sciences, Universiti Sains Malaysia, Pulau Pinang, Malaysia
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Shishov A, Nechaeva D, Moskvin L, Andruch V, Bulatov A. Automated solid sample dissolution coupled with sugaring-out homogenous liquid-liquid extraction. Application for the analysis of throat lozenge samples. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.03.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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22
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Timofeeva I, Shishov A, Kanashina D, Dzema D, Bulatov A. On-line in-syringe sugaring-out liquid-liquid extraction coupled with HPLC-MS/MS for the determination of pesticides in fruit and berry juices. Talanta 2017; 167:761-767. [DOI: 10.1016/j.talanta.2017.01.008] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 01/03/2017] [Indexed: 10/20/2022]
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Silva Junior MM, Portugal LA, Serra AM, Ferrer L, Cerdà V, Ferreira SL. On line automated system for the determination of Sb(V), Sb(III), thrimethyl antimony(v) and total antimony in soil employing multisyringe flow injection analysis coupled to HG-AFS. Talanta 2017; 165:502-507. [DOI: 10.1016/j.talanta.2016.12.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 12/08/2016] [Accepted: 12/09/2016] [Indexed: 10/20/2022]
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Flow injection-based cloud point extraction of phosalone and ethion in seawater of Chabahar Bay and determination by high-performance liquid chromatography: study of use of carbon nanotube and nanofibers as a column filler in flow system. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1059-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Aleluia AC, de Santana FA, Brandao GC, Ferreira SL. Sequential determination of cadmium and lead in organic pharmaceutical formulations using high-resolution continuum source graphite furnace atomic absorption spectrometry. Microchem J 2017. [DOI: 10.1016/j.microc.2016.09.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Alexovič M, Horstkotte B, Šrámková I, Solich P, Sabo J. Automation of dispersive liquid–liquid microextraction and related techniques. Approaches based on flow, batch, flow-batch and in-syringe modes. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2016.10.003] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Frizzarin RM, Maya F, Estela JM, Cerdà V. Fully-automated in-syringe dispersive liquid-liquid microextraction for the determination of caffeine in coffee beverages. Food Chem 2016; 212:759-67. [DOI: 10.1016/j.foodchem.2016.06.032] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 05/30/2016] [Accepted: 06/11/2016] [Indexed: 10/21/2022]
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Application of ultrasonic-assisted cloud point extraction/flame atomic absorption spectrometry (UA-CPE/FAAS) for preconcentration and determination of low levels of antimony in some beverage samples. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2016. [DOI: 10.1007/s13738-016-0874-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Davletbaeva P, Falkova M, Safonova E, Moskvin L, Bulatov A. Flow method based on cloud point extraction for fluorometric determination of epinephrine in human urine. Anal Chim Acta 2016; 911:69-74. [PMID: 26893087 DOI: 10.1016/j.aca.2015.12.045] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 12/19/2015] [Accepted: 12/22/2015] [Indexed: 12/01/2022]
Abstract
A novel stepwise injection fluorometric method for the determination of epinephrine in human urine has been developed. In the current study, the stepwise injection analysis (SWIA) was successfully combined with on-line in-syringe cloud point extraction (CPE) and fluorometric detection. The procedure was based on the epinephrine derivatization in the presence of o-phenylenediamine followed by the preconcentration stage based on the CPE with the nonionic surfactant Triton X-114. After the phase separation into a syringe of the flow system, the micellar phase containing the epinephrine derivative was transported to a fluorometric detector. The excitation and emission wavelengths were set at 447 nm and 550 nm, respectively. The conditions of epinephrine derivatization and CPE have been studied. The calibration plot constructed using the developed procedure was linear in the range of 1·10(-11)-5·10(-7) mol L(-1). The limit of detection, calculated as 3 σ of a blank test (n = 10), was found to be 3·10(-12) mol L(-1). The proposed method was successfully applied for the determination of epinephrine in human urine samples.
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Affiliation(s)
- Polina Davletbaeva
- Department of Analytical Chemistry, Institute of Chemistry, Saint-Petersburg University St. Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St. Petersburg 199034 Russia.
| | - Marina Falkova
- Department of Analytical Chemistry, Institute of Chemistry, Saint-Petersburg University St. Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St. Petersburg 199034 Russia
| | - Evgenia Safonova
- Department of Analytical Chemistry, Institute of Chemistry, Saint-Petersburg University St. Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St. Petersburg 199034 Russia
| | - Leonid Moskvin
- Department of Analytical Chemistry, Institute of Chemistry, Saint-Petersburg University St. Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St. Petersburg 199034 Russia
| | - Andrey Bulatov
- Department of Analytical Chemistry, Institute of Chemistry, Saint-Petersburg University St. Petersburg State University, SPbSU, SPbU, 7/9 Universitetskaya nab., St. Petersburg 199034 Russia
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