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Ma Q, Zhang Q, Li X, Gao Y, Wei C, Li H, Jiao H. The compound-independent calibration of five selenium species in rice using ion-pairing reversed phase chromatography coupled to inductively coupled plasma tandem mass spectrometry. J Chromatogr A 2022; 1674:463134. [DOI: 10.1016/j.chroma.2022.463134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/30/2022] [Accepted: 05/07/2022] [Indexed: 11/26/2022]
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2
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Obiakor MO, Tighe MK, Pereg L, Taylor AM, Maher W, Krikowa F, Wilson SC. Sensitivity of Freshwater Australian Bass (Macquaria novemaculeata) and Silver Perch (Bidyanus bidyanus) to Waterborne Antimony: Exposure-Dose-Response Characteristics and Ion Homeostasis. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 81:621-636. [PMID: 34562110 DOI: 10.1007/s00244-021-00891-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 09/14/2021] [Indexed: 06/13/2023]
Abstract
We conducted acute toxicity studies using semi-static protocols to examine the lethal responses of Australian bass and silver perch exposed to antimony (Sb) oxidation states in Sb(III) (10.5-30.5 mg L-1) and Sb(V) (95.9-258.7 mg L-1). Bioavailability and the effects of Sb on body ion regulation (Na, Ca, Mg, and K) were also investigated. Antimony species-specific effects were observed with exposure to both Sb oxidation states. Median lethal concentrations (LC50s) for Sb(III) were 13.6 and 18 mg L-1 for Australian bass and silver perch, respectively, and the LC50 for Sb(V) in Australian bass was 165.3 mg L-1. The LC50 could not be calculated for silver perch exposed to Sb(V) as the maximum exposure concentrations produced 40% mortality but a larger-than value of > 258.7 mg L-1 was estimated. Relative median potency values derived from the LC50s were 0.1 Sb(III) and 12.2 and 16.6 Sb(V) for Australian bass and silver perch, respectively, demonstrating greater toxicity of Sb(III) to both fish species. Antimony uptake in fish was observed. Median critical body residue (CBR50) values of 77.7 and 26.6 mg kg-1 for Sb(III) were estimated for Australian bass and silver perch, respectively, and 628.1 mg kg-1 for Sb(V) in Australian bass. Bioconcentration factors (BCFs) for both Sb(III) and Sb(V) did not change with exposure but the greater BCFs for fish exposed to Sb(III) indicate that it is more bioavailable than Sb(V) in acute exposure. No effects on whole-body Na, Ca, Mg, or K ions were observed with fish exposure to either Sb species.
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Affiliation(s)
| | - Matthew K Tighe
- School of Environmental and Rural Science, University of New England, Armidale, NSW, Australia
| | - Lily Pereg
- School of Science and Technology, University of New England, Armidale, NSW, Australia
| | - Anne M Taylor
- Research School of Earth Sciences, Australian National University, Canberra, ACT 2601, Australia
- Centre for Applied Water Science, University of Canberra, Canberra, ACT 2601, Australia
| | - William Maher
- Research School of Earth Sciences, Australian National University, Canberra, ACT 2601, Australia
| | - Frank Krikowa
- Research School of Earth Sciences, Australian National University, Canberra, ACT 2601, Australia
| | - Susan C Wilson
- School of Environmental and Rural Science, University of New England, Armidale, NSW, Australia
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Surai PF, Kochish II, Fisinin VI, Velichko OA. Selenium in Poultry Nutrition: from Sodium Selenite to Organic Selenium Sources. J Poult Sci 2017; 55:79-93. [PMID: 32055160 PMCID: PMC6756489 DOI: 10.2141/jpsa.0170132] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Accepted: 11/07/2017] [Indexed: 12/24/2022] Open
Abstract
Selenium (Se) is an essential element in poultry nutrition and its bio-efficacy depends on its chemical form. A growing body of research proves that organic forms of Se, mainly selenomethionine (SeMet), in poultry diets have a range of important advantages over traditional sodium selenite. In fact, the organic Se concept considers SeMet as a storage form of Se in the chicken body. As chickens are not able to synthesize SeMet, its provision through diet is a key strategy to fight commercially relevant stresses. Indeed, in stress conditions, when increased selenoprotein expression requires additional Se, while its provision via feed usually decreases due to a reduction in feed consumption, Se reserves in the body (mainly in the muscles) could help maintain an effective antioxidant defense and prevent detrimental consequences of stresses. The poultry industry is looking for the most effective sources of organic Se for commercial use. In this review, advantages and disadvantages of main organic Se sources for poultry (Se-yeast, SeMet, and OH-SeMet) are analyzed, and future directions for the development of new Se sources are identified.
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Affiliation(s)
- Peter F. Surai
- Department of Microbiology and Biochemistry, Faculty of Veterinary Medicine, Trakia University, Stara Zagora 6000, Bulgaria
- Moscow State Academy of Veterinary Medicine and Biotechnology named after K.I. Skryabin, Moscow, 109472, Russia
- Department of Animal Nutrition, Faculty of Agricultural and Environmental Sciences, Szent Istvan University, Gödöllo H-2103, Hungary
| | - Ivan I. Kochish
- Moscow State Academy of Veterinary Medicine and Biotechnology named after K.I. Skryabin, Moscow, 109472, Russia
| | | | - Oksana A. Velichko
- Department of Ecology and Genetics, Tyumen State University, Tyumen, 625003, Russia
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Redox speciation of iron, manganese, and copper in cerebrospinal fluid by strong cation exchange chromatography – sector field inductively coupled plasma mass spectrometry. Anal Chim Acta 2017; 973:25-33. [DOI: 10.1016/j.aca.2017.03.040] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 03/30/2017] [Accepted: 03/30/2017] [Indexed: 12/13/2022]
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5
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Marcinkowska M, Barałkiewicz D. Multielemental speciation analysis by advanced hyphenated technique - HPLC/ICP-MS: A review. Talanta 2016; 161:177-204. [PMID: 27769396 DOI: 10.1016/j.talanta.2016.08.034] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 08/08/2016] [Accepted: 08/11/2016] [Indexed: 01/24/2023]
Abstract
Speciation analysis has become an invaluable tool in human health risk assessment, environmental monitoring or food quality control. Another step is to develop reliable multielemental speciation methodologies, to reduce costs, waste and time needed for the analysis. Separation and detection of species of several elements in a single analytical run can be accomplished by high performance liquid chromatography hyphenated to inductively coupled plasma mass spectrometry (HPLC/ICP-MS). Our review assembles articles concerning multielemental speciation determination of: As, Se, Cr, Sb, I, Br, Pb, Hg, V, Mo, Te, Tl, Cd and W in environmental, biological, food and clinical samples analyzed with HPLC/ICP-MS. It addresses the procedures in terms of following issues: sample collection and pretreatment, selection of optimal conditions for elements species separation by HPLC and determination using ICP-MS as well as metrological approach. The presented work is the first review article concerning multielemental speciation analysis by advanced hyphenated technique HPLC/ICP-MS.
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Affiliation(s)
- Monika Marcinkowska
- Department of Trace Element Analysis by Spectroscopy Method, Faculty of Chemistry, Adam Mickiewicz University in Poznań, 89b Umultowska Street, 61-614 Poznań, Poland
| | - Danuta Barałkiewicz
- Department of Trace Element Analysis by Spectroscopy Method, Faculty of Chemistry, Adam Mickiewicz University in Poznań, 89b Umultowska Street, 61-614 Poznań, Poland.
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Marcinkowska M, Komorowicz I, Barałkiewicz D. New procedure for multielemental speciation analysis of five toxic species: As(III), As(V), Cr(VI), Sb(III) and Sb(V) in drinking water samples by advanced hyphenated technique HPLC/ICP-DRC-MS. Anal Chim Acta 2016; 920:102-11. [PMID: 27114229 DOI: 10.1016/j.aca.2016.03.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 03/09/2016] [Accepted: 03/18/2016] [Indexed: 11/16/2022]
Abstract
Analytical procedure dedicated for multielemental determination of toxic species: As(III), As(V), Cr(VI), Sb(III) and Sb(V) in drinking water samples using high performance liquid chromatography hyphenated to inductively coupled plasma mass spectrometry (HPLC/ICP-DRC-MS) technique was developed. Optimization of the detection and separation conditions was conducted. Dynamic reaction cell (DRC) with oxygen as a reaction gas was involved in the experiments. Obtained analytical signals for species separation were symmetrical, as studied by anion-exchange chromatography. Applied mobile phase consisted of 3 mM of EDTANa2 and 36 mM of ammonium nitrate. Full separation of species in the form of the following forms: H3AsO3, H2AsO4(-), SbO2(-), Sb(OH)6(-), CrO4(2-) was achieved in 15 min with use of gradient elution program. Detailed validation of analytical procedure proved the reliability of analytical measurements. The procedure was characterized by high precision in the range from 1.7% to 2.4%. Detection limits (LD) were 0.067 μg L(-1), 0.068 μg L(-1), 0.098 μg L(-1), 0.083 μg L(-1) and 0.038 μg L(-1) for As(III), As(V), Cr(VI), Sb(III) and Sb(V), respectively. Obtained recoveries confirmed the lack of interferences' influence on analytical signals as their values were in the range of 91%-110%. The applicability of the proposed procedure was tested on drinking water samples characterized by mineralization up to 650 mg L(-1).
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Affiliation(s)
- Monika Marcinkowska
- Department of Trace Element Analysis by Spectroscopy Method, Faculty of Chemistry, Adam Mickiewicz University in Poznań, 89b Umultowska Street, 61-614, Poznań, Poland
| | - Izabela Komorowicz
- Department of Trace Element Analysis by Spectroscopy Method, Faculty of Chemistry, Adam Mickiewicz University in Poznań, 89b Umultowska Street, 61-614, Poznań, Poland
| | - Danuta Barałkiewicz
- Department of Trace Element Analysis by Spectroscopy Method, Faculty of Chemistry, Adam Mickiewicz University in Poznań, 89b Umultowska Street, 61-614, Poznań, Poland.
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8
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AlSioufi L, Sánchez de la Campa AM, Sánchez-Rodas D. Microwave extraction as an alternative to ultrasound probe for antimony speciation in airborne particulate matter. Microchem J 2016. [DOI: 10.1016/j.microc.2015.09.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Surai PF, Fisinin VI. Selenium in pig nutrition and reproduction: boars and semen quality-a review. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2015; 28:730-46. [PMID: 25924964 PMCID: PMC4413004 DOI: 10.5713/ajas.14.0593] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/14/2014] [Accepted: 11/23/2014] [Indexed: 01/01/2023]
Abstract
Selenium plays an important role in boar nutrition via participating in selenoprotein synthesis. It seems likely that selenoproteins are central for antioxidant system regulation in the body. Se-dependent enzyme glutathione peroxidase (GSH-Px) is the most studied selenoprotein in swine production. However, roles of other selenoproteins in boar semen production and maintenance of semen quality also need to be studied. Boar semen is characterised by a high proportion of easily oxidized long chain polyunsaturated fatty acids and requires an effective antioxidant defense. The requirement of swine for selenium varies depending on many environmental and other conditions and, in general, is considered to be 0.15 to 0.30 mg/kg feed. It seems likely that reproducing sows and boars are especially sensitive to Se deficiency, and meeting their requirements is an important challenge for pig nutritionists. In fact, in many countries there are legal limits as to how much Se may be included into the diet and this restricts flexibility in terms of addressing the Se needs of the developing and reproducing swine. The analysis of data of various boar trials with different Se sources indicates that in some cases when background Se levels were low, there were advantages of Se dietary supplementation. It is necessary to take into account that only an optimal Se status of animals is associated with the best antioxidant protection and could have positive effects on boar semen production and its quality. However, in many cases, background Se levels were not determined and therefore, it is difficult to judge if the basic diets were deficient in Se. It can also be suggested that, because of higher efficacy of assimilation from the diet, and possibilities of building Se reserves in the body, organic selenium in the form of selenomethionine (SeMet) provided by a range of products, including Se-Yeast and SeMet preparations is an important source of Se to better meet the needs of modern pig genotypes in commercial conditions of intensive pig production.
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Affiliation(s)
- Peter F Surai
- Department of Animal Nutrition, Faculty of Agricultural and Environmental Sciences, Szent Istvan University, Gödöllo H-2103, Hungary ; Department of Microbiology and Biochemistry, Faculty of Veterinary Medicine, Trakia University, Stara Zagora 6000, Bulgaria . ; Department of Veterinary Expertise and Microbiology, Faculty of Veterinary Medicine, Sumy National Agrarian University, Sumy, 40021, Ukraine . ; Odessa National Academy of Food Technologies, Odessa 65039, Ukraine
| | - Vladimir I Fisinin
- All-Russian Institute of Poultry Husbandry, Sergiev Posad, 141311, Russia
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Valenzuela A, Lespes G, Quiroz W, Aguilar LF, Bravo MA. Speciation analysis of organotin compounds in human urine by headspace solid-phase micro-extraction and gas chromatography with pulsed flame photometric detection. Talanta 2014; 125:196-203. [DOI: 10.1016/j.talanta.2014.02.054] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2013] [Revised: 02/20/2014] [Accepted: 02/21/2014] [Indexed: 10/25/2022]
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12
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Ren JH, Ma LQ, Sun HJ, Cai F, Luo J. Antimony uptake, translocation and speciation in rice plants exposed to antimonite and antimonate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 475:83-89. [PMID: 24419289 DOI: 10.1016/j.scitotenv.2013.12.103] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 12/20/2013] [Accepted: 12/20/2013] [Indexed: 06/03/2023]
Abstract
Antimony (Sb) accumulation in rice is a potential threat to human health, but its uptake mechanisms are unclear. A hydroponic experiment was conducted to investigate uptake, translocation, speciation and subcellular distribution of Sb in rice plants exposed to antimonite (SbIII) and antimonate (SbV) at 0.2, 1.0 or 5.0 mg/L for 4h. More Sb was accumulated in iron plaque than in the plant, with both the roots (~10-12 times) and Fe plaque (~28-54 times) sequestering more SbIII than SbV. The presence of iron plaque decreased uptake of both SbV and SbIII. SbIII uptake kinetics fitted better to the Michaelis-Menten function than SbV. Antimonate (56 to 98%) was the predominant form in rice plant with little methylated species being detected using HPLC-ICP-MS. Cell walls accumulated more Sb than organelles and cytosol, which were considered as the first barrier against Sb entering into cells. Sb transformation and subcellular distribution can help to understand the metabolic mechanisms of Sb in rice.
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Affiliation(s)
- Jing-Hua Ren
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Lena Q Ma
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China; Soil and Water Science Department, University of Florida, Gainesville, FL 32611, USA.
| | - Hong-Jie Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Fei Cai
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China
| | - Jun Luo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Jiangsu 210046, China.
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13
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Zhang Q, Yang G. Selenium speciation in bay scallops by high performance liquid chromatography separation and inductively coupled plasma mass spectrometry detection after complete enzymatic extraction. J Chromatogr A 2014; 1325:83-91. [DOI: 10.1016/j.chroma.2013.11.050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2013] [Revised: 11/07/2013] [Accepted: 11/26/2013] [Indexed: 10/26/2022]
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14
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Ge Z, Wei C. Simultaneous Analysis of SbIII, SbV and TMSb by High Performance Liquid Chromatography–Inductively Coupled Plasma–Mass Spectrometry Detection: Application to Antimony Speciation in Soil Samples. J Chromatogr Sci 2012; 51:391-9. [DOI: 10.1093/chromsci/bms153] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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15
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Michalski R, Szopa S, Jabłońska M, Łyko A. Application of hyphenated techniques in speciation analysis of arsenic, antimony, and thallium. ScientificWorldJournal 2012; 2012:902464. [PMID: 22654649 PMCID: PMC3354673 DOI: 10.1100/2012/902464] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2011] [Accepted: 12/21/2011] [Indexed: 11/29/2022] Open
Abstract
Due to the fact that metals and metalloids have a strong impact on the environment, the methods of their determination and speciation have received special attention in recent years. Arsenic, antimony, and thallium are important examples of such toxic elements. Their speciation is especially important in the environmental and biomedical fields because of their toxicity, bioavailability, and reactivity. Recently, speciation analytics has been playing a unique role in the studies of biogeochemical cycles of chemical compounds, determination of toxicity and ecotoxicity of selected elements, quality control of food products, control of medicines and pharmaceutical products, technological process control, research on the impact of technological installation on the environment, examination of occupational exposure, and clinical analysis. Conventional methods are usually labor intensive, time consuming, and susceptible to interferences. The hyphenated techniques, in which separation method is coupled with multidimensional detectors, have become useful alternatives. The main advantages of those techniques consist in extremely low detection and quantification limits, insignificant interference, influence as well as high precision and repeatability of the determinations. In view of their importance, the present work overviews and discusses different hyphenated techniques used for arsenic, antimony, and thallium species analysis, in different clinical, environmental and food matrices.
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Affiliation(s)
- Rajmund Michalski
- Institute of Environmental Engineering, the Polish Academy of Sciences, 34 Skłodowskiej-Curie Street, 41 819 Zabrze, Poland.
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Wolf RE, Morman SA, Hageman PL, Hoefen TM, Plumlee GS. Simultaneous speciation of arsenic, selenium, and chromium: species stability, sample preservation, and analysis of ash and soil leachates. Anal Bioanal Chem 2011; 401:2733-45. [DOI: 10.1007/s00216-011-5275-x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2011] [Revised: 07/18/2011] [Accepted: 07/21/2011] [Indexed: 10/17/2022]
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17
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Liu Q, Bei Y. Thermodynamics and Dynamic Kinetics of the Oxidation of Selenomethionine to Methionine Selenoxide: A Dft Study. PROGRESS IN REACTION KINETICS AND MECHANISM 2011. [DOI: 10.3184/146867810x12913153905848] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In order to investigate the stability of selenomethionine (SeMet), the oxidation reaction of selenomethionine (SeMet) with an oxygen atom was studied by the density function theory (DFT) method. The structures of reactants, transition state and products were fully optimized at the B3LYP/6-311G** level. Intrinsic reaction coordinate (IRC) calculations were carried out to ensure the validity of the reaction path. The thermodynamic functions, namely entropy, enthalpy, free energy and equilibrium constant, and the reaction rate constant k in Eyring transition state theory, were also calculated. It has been shown that the SeMet oxidation process is favoured at lower temperatures, which might have implications for the storage stability of selenomethionine (SeMet) at lower temperatures.
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Affiliation(s)
- Qingyang Liu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P.R. China
| | - Yiling Bei
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, P.R. China
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Quiroz W, Arias H, Bravo M, Pinto M, Lobos MG, Cortés M. Development of analytical method for determination of Sb(V), Sb(III) and TMSb(V) in occupationally exposed human urine samples by HPLC–HG-AFS. Microchem J 2011. [DOI: 10.1016/j.microc.2010.06.015] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Methylated trivalent arsenic-glutathione complexes are more stable than their arsenite analog. Bioinorg Chem Appl 2010:539082. [PMID: 18509491 PMCID: PMC2396221 DOI: 10.1155/2008/539082] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2008] [Accepted: 04/03/2008] [Indexed: 12/13/2022] Open
Abstract
The trivalent arsenic glutathione complexes arsenic triglutathione,
methylarsonous diglutathione, and dimethylarsinous glutathione are key intermediates
in the mammalian metabolism of arsenite and possibly represent the arsenic species
that are transported from the liver to the kidney for urinary excretion. Despite this, the
comparative stability of the arsenic-sulfur bonds in these complexes has not been
investigated under physiological conditions resembling hepatocyte cytosol. Using
size-exclusion chromatography and a glutathione-containing phosphate buffered saline
mobile phase (5 or 10 mM glutathione, pH 7.4) in conjunction with an
arsenic-specific detector, we chromatographed arsenite, monomethylarsonous acid, and
dimethylarsinous acid. The on-column formation of the corresponding arsenic-glutathione
complexes between 4 and 37°C revealed that methylated arsenic-glutathione complexes are more
stable than arsenic triglutathione. The relevance of these results with regard to the metabolic
fate of arsenite in mammals is discussed.
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Najafi NM, Tavakoli H, Alizadeh R, Seidi S. Speciation and determination of ultra trace amounts of inorganic tellurium in environmental water samples by dispersive liquid-liquid microextraction and electrothermal atomic absorption spectrometry. Anal Chim Acta 2010; 670:18-23. [PMID: 20685411 DOI: 10.1016/j.aca.2010.04.059] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2010] [Revised: 04/24/2010] [Accepted: 04/26/2010] [Indexed: 10/19/2022]
Abstract
A simple and powerful method has been developed for the rapid and selective determination of Te(IV) and Te(VI), employing dispersive liquid-liquid microextraction combined with electrothermal atomic absorption spectrometry using palladium as permanent modifier. Under acidic conditions pH 1, only Te(IV) can form a complex with ammonium pyrrolidine dithiocarbamate (APDC) and therefore be extracted into fine droplets of carbon tetrachloride (extraction solvent) which are dispersed with ethanol into the water sample solution. After centrifugation, Te(IV) was determined in the sedimented organic phase while Te(VI) remained in the aqueous phase. Total inorganic tellurium was determined after the reduction of the Te(VI) to Te(IV). Te(VI) was calculated as the difference between the measured total inorganic tellurium and Te(IV) content. The effective parameters for improving the efficiency of microextraction process were investigated by using experimental and central composite designs. Under optimal conditions the enrichment factor was 125 and the calibration graph was linear in the range of 0.015-1 ng mL(-1) with detection limit and characteristic mass of 0.004 ng mL(-1) and 0.033 pg, respectively. The relative standard deviation for 0.5 ng mL(-1) of tellurium measurement was 3.6% (n=6) at ash and atomization temperature, 900 and 2600 degrees C, respectively. The recoveries of spiked Te(IV) and Te(VI) to the environmental water samples were 89.6-101.3% and 96.6-99.1%, respectively. The accuracy is also evaluated by applying the proposed method to certified reference material (NIST SRM 1643e), for which the result was in a good agreement with the certified values reported for this CRM (95% confidence level).
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Affiliation(s)
- Nahid Mashkouri Najafi
- Department of Chemistry, Faculty of Science, Shahid Beheshti Uinversity, Evin, Tehran, Iran.
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Speciation of antimony in airborne particulate matter using ultrasound probe fast extraction and analysis by HPLC-HG-AFS. Anal Chim Acta 2009; 649:191-5. [DOI: 10.1016/j.aca.2009.07.036] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Revised: 07/02/2009] [Accepted: 07/09/2009] [Indexed: 11/19/2022]
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Duan J, Hu B. Separation and determination of seleno amino acids using gas chromatography hyphenated with inductively coupled plasma mass spectrometry after hollow fiber liquid phase microextraction. JOURNAL OF MASS SPECTROMETRY : JMS 2009; 44:605-612. [PMID: 19053158 DOI: 10.1002/jms.1533] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A new derivatization-extraction method for preconcentration of seleno amino acids using hollow fiber liquid phase microextraction (HF-LPME) was developed for the separation and determination of seleno amino acids in biological samples by gas chromatography-inductively coupled plasma mass spectrometry (GC-ICP-MS). Derivatization was performed with ethyl chloroformate (ECF) to improve the volatility of seleno amino acids. Parameters influencing microextraction, including extraction solvent, pH of sample solution, extraction time, stirring speed, and inorganic salt concentration have been investigated. Under the optimal conditions, the limits of detection (LODs) obtained for Se-methyl-selenocysteine (SeMeCys), selenomethionine (SeMet), and selenoethionine (SeEth) were 23, 15, and 11 ng Se l(-1), respectively. The relative standard deviations (RSDs) were 14.6%, 16.4%, and 19.4% for SeMeCys, SeMet, and SeEth (c = 1.0 ng ml(-1), n = 7), respectively, and the RSDs for SeMeCys, SeMet could be improved obviously if SeEth was utilized as the internal standard. The proposed method was applied for the determination of seleno amino acids in extracts of garlic, cabbage, and mushroom samples, and the recoveries for the spiked samples were in the range of 96.8-108% and 93.4-115% with and without the use of SeEth as internal standard. The developed method was also applied to the analysis of SeMet in a certified reference material of SELM-1 yeast and the determined value is in good agreement with the certified value.
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Affiliation(s)
- Jiankun Duan
- Department of Chemistry, Wuhan University, Wuhan 430072, China
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Pressurized liquid extraction followed by high performance liquid chromatography coupled to hydride generation atomic fluorescence spectrometry for arsenic and selenium speciation in atmospheric particulate matter. J Chromatogr A 2008; 1215:15-20. [DOI: 10.1016/j.chroma.2008.10.100] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2008] [Revised: 10/22/2008] [Accepted: 10/29/2008] [Indexed: 11/27/2022]
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24
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Moreda-Piñeiro A, Peña-Vázquez E, Hermelo-Herbello P, Bermejo-Barrera P, Moreda-Piñeiro J, Alonso-Rodríguez E, Muniategui-Lorenzo S, López-Mahía P, Prada-Rodríguez D. Matrix Solid-Phase Dispersion as a Sample Pretreatment for the Speciation of Arsenic in Seafood Products. Anal Chem 2008; 80:9272-8. [DOI: 10.1021/ac801622u] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Antonio Moreda-Piñeiro
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela, Avenida das Ciencias, s/n. 15782, Santiago de Compostela, Spain, Department of Analytical Chemistry, Faculty of Sciences, University of A Coruña, Campus da Zapateira, s/n 15071, A Coruña, Spain, and University Institute of Environment, University of A Coruña, Pazo de Lóngora, Liáns, 15179, Oleiros, Spain
| | - Elena Peña-Vázquez
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela, Avenida das Ciencias, s/n. 15782, Santiago de Compostela, Spain, Department of Analytical Chemistry, Faculty of Sciences, University of A Coruña, Campus da Zapateira, s/n 15071, A Coruña, Spain, and University Institute of Environment, University of A Coruña, Pazo de Lóngora, Liáns, 15179, Oleiros, Spain
| | - Paloma Hermelo-Herbello
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela, Avenida das Ciencias, s/n. 15782, Santiago de Compostela, Spain, Department of Analytical Chemistry, Faculty of Sciences, University of A Coruña, Campus da Zapateira, s/n 15071, A Coruña, Spain, and University Institute of Environment, University of A Coruña, Pazo de Lóngora, Liáns, 15179, Oleiros, Spain
| | - Pilar Bermejo-Barrera
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela, Avenida das Ciencias, s/n. 15782, Santiago de Compostela, Spain, Department of Analytical Chemistry, Faculty of Sciences, University of A Coruña, Campus da Zapateira, s/n 15071, A Coruña, Spain, and University Institute of Environment, University of A Coruña, Pazo de Lóngora, Liáns, 15179, Oleiros, Spain
| | - Jorge Moreda-Piñeiro
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela, Avenida das Ciencias, s/n. 15782, Santiago de Compostela, Spain, Department of Analytical Chemistry, Faculty of Sciences, University of A Coruña, Campus da Zapateira, s/n 15071, A Coruña, Spain, and University Institute of Environment, University of A Coruña, Pazo de Lóngora, Liáns, 15179, Oleiros, Spain
| | - Elia Alonso-Rodríguez
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela, Avenida das Ciencias, s/n. 15782, Santiago de Compostela, Spain, Department of Analytical Chemistry, Faculty of Sciences, University of A Coruña, Campus da Zapateira, s/n 15071, A Coruña, Spain, and University Institute of Environment, University of A Coruña, Pazo de Lóngora, Liáns, 15179, Oleiros, Spain
| | - Soledad Muniategui-Lorenzo
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela, Avenida das Ciencias, s/n. 15782, Santiago de Compostela, Spain, Department of Analytical Chemistry, Faculty of Sciences, University of A Coruña, Campus da Zapateira, s/n 15071, A Coruña, Spain, and University Institute of Environment, University of A Coruña, Pazo de Lóngora, Liáns, 15179, Oleiros, Spain
| | - Purificación López-Mahía
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela, Avenida das Ciencias, s/n. 15782, Santiago de Compostela, Spain, Department of Analytical Chemistry, Faculty of Sciences, University of A Coruña, Campus da Zapateira, s/n 15071, A Coruña, Spain, and University Institute of Environment, University of A Coruña, Pazo de Lóngora, Liáns, 15179, Oleiros, Spain
| | - Darío Prada-Rodríguez
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Chemistry, University of Santiago de Compostela, Avenida das Ciencias, s/n. 15782, Santiago de Compostela, Spain, Department of Analytical Chemistry, Faculty of Sciences, University of A Coruña, Campus da Zapateira, s/n 15071, A Coruña, Spain, and University Institute of Environment, University of A Coruña, Pazo de Lóngora, Liáns, 15179, Oleiros, Spain
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Gar’kin VP, Rodina TA, Solovova NB, Buryak AK. Reversed-phase liquid chromatography-mass spectrometry of some organic tellurium compounds. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2008. [DOI: 10.1134/s0036024408060010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Huang C, Hu B. Speciation of inorganic tellurium from seawater by ICP-MS following magnetic SPE separation and preconcentration. J Sep Sci 2008; 31:760-7. [DOI: 10.1002/jssc.200700405] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Kuo CY, Jiang SJ. Determination of selenium and tellurium compounds in biological samples by ion chromatography dynamic reaction cell inductively coupled plasma mass spectrometry. J Chromatogr A 2008; 1181:60-6. [PMID: 18199446 DOI: 10.1016/j.chroma.2007.12.065] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2007] [Revised: 12/13/2007] [Accepted: 12/14/2007] [Indexed: 11/25/2022]
Abstract
An ion chromatography-inductively coupled plasma mass spectrometric (IC-ICP-MS) method for the speciation of selenium and tellurium compounds namely selenite [Se(IV)], selenate [Se(VI)], Se-methylselenocysteine (MeSeCys), selenomethione (SeMet), tellurite [Te(IV)] and tellurate [Te(VI)] is described. Chromatographic separation is performed in gradient elution mode using 0.5 mmol L(-1) ammonium citrate in 2% methanol (pH 3.7) and 20 mmol L(-1) ammonium citrate in 2% methanol (pH 8.0). The analyses are carried out using dynamic reaction cell (DRC) ICP-MS. The DRC conditions have also been optimized to obtain interference free measurements of (78)Se(+) and (80)Se(+) which are otherwise interfered by (38)Ar(40)Ar(+) and (40)Ar(40)Ar(+), respectively. The detection limits of the procedure are in the range 0.01-0.03 ng Se mL(-1) and 0.01-0.08 ng Te mL(-1), respectively. The accuracy of the method has been verified by comparing the sum of the concentrations of individual species obtained by the present procedure with the total concentration of the elements in two NIST SRMs Whole Milk Powder RM 8435 and Rice Flour SRM 1568a. The selenium and tellurium species are extracted from milk powder and rice flour samples by using Protease XIV at 70 degrees C on a water bath for 30 min.
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Affiliation(s)
- Chia-Yi Kuo
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
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28
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Castillo A, Roig-Navarro A, Pozo O. Secondary interactions, an unexpected problem emerged between hydroxyl containing analytes and fused silica capillaries in anion-exchange micro-liquid chromatography. J Chromatogr A 2007; 1172:179-85. [DOI: 10.1016/j.chroma.2007.10.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2007] [Revised: 09/27/2007] [Accepted: 10/05/2007] [Indexed: 10/22/2022]
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29
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Pacheco PH, Gil RA, Martinez LD, Polla G, Smichowski P. A fully automated system for inorganic antimony preconcentration and speciation in urine. Anal Chim Acta 2007; 603:1-7. [DOI: 10.1016/j.aca.2007.09.034] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2007] [Revised: 09/14/2007] [Accepted: 09/19/2007] [Indexed: 11/30/2022]
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30
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Antimony speciation analysis in sediment reference materials using high-performance liquid chromatography coupled to hydride generation atomic fluorescence spectrometry. Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2005.07.055] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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31
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Prest JE, Baldock SJ, Fielden PR, Goddard NJ, Treves Brown BJ. Inorganic Arsenic and Selenium Determination Using Miniaturised Isotachophoresis. Mikrochim Acta 2005. [DOI: 10.1007/s00604-005-0403-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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De Gregori I, Quiroz W, Pinochet H, Pannier F, Potin-Gautier M. Simultaneous speciation analysis of Sb(III), Sb(V) and (CH3)3SbCl2 by high performance liquid chromatography-hydride generation-atomic fluorescence spectrometry detection (HPLC-HG-AFS): Application to antimony speciation in sea water. J Chromatogr A 2005; 1091:94-101. [PMID: 16395797 DOI: 10.1016/j.chroma.2005.07.060] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This paper presents an improvement for the simultaneous separation of Sb(V), Sb(III) and (CH3)3SbCl2 species by high performance liquid chromatography (HPLC) and its detection by hydride generation-atomic fluorescence spectrometry (HG-AFS). The separation was performed on an anion exchange column PRP-X100 using a gradient elution program between EDTA/KHP (potasium hydrogen phtalate) as first mobile phase and phosphate solutions solution as the second one. The chromatographic separation and the HG-AFS parameters were optimized by experimental design. The best results were obtained by using an elution program with 20 mmol l(-1) EDTA + 2 mmol(-01) KHP solution at pH 4.5, during 1.15 min, then change to 50 mmol l(-1) (NH4)2HPO4 solution at pH 8.3, switching back after 4.0 min to the first mobile phase, until 5 min, with a constant flow rate of 1.5 ml min(-1). Retention time of Sb(V), Sb(III) and trimethylantimony species were 1.22, 2.31 and 3.45 min and the detection limits were 0.13; 0.07 and 0.13 microg l(-1), respectively. Studies on the stability of this antimony species in sea water samples on the function of the elapsed time of storage in refrigerator at 4 degrees C was performed employing the optimized method. Results revealed that Sb(III) is easily oxidized within some hours to Sb(V) in sea water stored at 4 degrees C. However, when the sea water was immediately mixed with EDTA no oxidation of Sb(III) was observed up to 1 week of storage. The proposed methodology was then applied to the antimony speciation in sea water samples.
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Affiliation(s)
- Ida De Gregori
- Laboratorio de Química Analítica y Ambiental, Instituto de Química, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2950, P.O. Box 4059, Valparaíso, Chile.
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33
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Amereih S, Meisel T, Kahr E, Wegscheider W. Speciation analysis of inorganic antimony in soil using HPLC-ID-ICP-MS. Anal Bioanal Chem 2005; 383:1052-9. [PMID: 16136301 DOI: 10.1007/s00216-005-0049-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2005] [Revised: 07/05/2005] [Accepted: 07/07/2005] [Indexed: 11/26/2022]
Abstract
Speciation analysis of Sb(III) and Sb(V) in a soil sample was performed through extraction and on-line isotope dilution concentration determination after a chromatographic separation. The total Sb concentration found in a through traffic contaminated soil sample was (4.17 microg g(-1), 0.3 microg g(-1) SD, n=6). It was determined using ICP-MS after soil digestion using the sodium peroxide sintering method. The optimized extraction procedure for speciation analysis was carried out using 100 mmol L(-1) citric acid at pH 2.08 by applying an ultrasonic bath for 45 min at room temperature. The effects of citric acid concentration (0-500 mmol L(-1)), pH (1-6), and temperature (30-60 degrees C) on inorganic antimony species distribution in the examined sample were studied and optimized. The separation of Sb(III) and Sb(V) was achieved using an anion exchange column (PRP-X100) and 10 mmol L(-1) EDTA and 1 mmol L(-1) phthalic acid at pH 4.5 as a mobile phase. The eluent from the HPLC was mixed with an enriched (94.2%) (123)Sb spike solution that was pumped by a peristaltic pump with a constant flow rate (0.5 mL min(-1)) in a three-way valve. The blend passed directly to the Conikal nebulizer of the ICP-MS. By using the above extraction procedure and methodology, 43.2% Sb(V) (2.9% RSD, n=3) and 6.0% Sb(III) (1.3% RSD, n=3) of total Sb found in the sample could be detected. The detection limits achieved by the proposed method were 20 ng L(-1) and 65 ng L(-1) for Sb(V) and Sb(III), respectively. The precision, evaluated by using RSD with 100 ng L(-1) calibration solutions, was 2.7% and 3.2% (n=6) for Sb(V) and Sb(III), respectively, in aqueous solutions.
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Affiliation(s)
- Sameer Amereih
- General and Analytical Chemistry, University of Leoben, Franz-Josef-Strasse18, 8700, Leoben, Austria.
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34
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Terlecka E. Arsenic speciation analysis in water samples: a review of the hyphenated techniques. ENVIRONMENTAL MONITORING AND ASSESSMENT 2005; 107:259-84. [PMID: 16418917 DOI: 10.1007/s10661-005-3109-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2004] [Accepted: 08/31/2004] [Indexed: 05/06/2023]
Abstract
Interests in the determination of different arsenic species in natural waters is caused by the fact that toxic effects of arsenic are connected with its chemical forms and oxidation states. In determinations of water samples inorganic arsenate (As(III), As(V)), methylated metabolities (MMAA, DMAA) and other organic forms such as AsB, AsC, arsenosugars or arsenic containing lipids have the most importance. This article provides information about occurrence of the dominant arsenic forms in various water environments. The main factors controlling arsenic speciation in water are described. The quantification of species is difficult because the concentrations of different forms in water samples are relatively low compared to the detection limits of the available analytical techniques. Several hyphenated methods used in arsenic speciation analysis are described. Specific advantages and disadvantages of methods can define their application for a particular sample analysis. Insufficient selectivity and sensitivity of arsenic speciation methods cause searching for a new or modifications already existing techniques. Some aspects of improvement and modifications of the methods are highlighted.
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Affiliation(s)
- Ewa Terlecka
- Institute of Meteorology and Water Management, ul. Parkowa 30, Wroclaw, Poland.
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Wrobel K, Wrobel K, Caruso JA. Pretreatment procedures for characterization of arsenic and selenium species in complex samples utilizing coupled techniques with mass spectrometric detection. Anal Bioanal Chem 2005; 381:317-31. [PMID: 15662512 DOI: 10.1007/s00216-004-2959-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2004] [Revised: 11/02/2004] [Accepted: 11/05/2004] [Indexed: 11/24/2022]
Abstract
Research interest in analyzing arsenic and selenium is dictated by their species-dependent behavior in the environment and in living organisms. Different analytical methodologies for known species in relatively simple chemical systems are well established, yet the analysis of complex samples is still a challenge. Owing to the complex matrix and low concentrations of target species that may be chemically labile, suitable pretreatment of the sample becomes a critical step in any speciation procedure. In this paper, the pretreatment procedures used for arsenic and selenium speciation are reviewed with the emphasis on the link between the analytical protocol applied and the biologically-significant information provided by the results obtained. In the first approach, the aim of pretreatment is to convert the original sample into a form that can be analyzed by a coupled (hyphenated) technique, preventing possible losses and/or species interconversion. Common techniques include different leaching and extraction modes, enzymatic hydrolysis, species volatilization, and so on, with or without species preconcentration. On the other hand, if the speciation analysis is performed for elucidation of elemental pathways and specific functions in a living system, more conscious pretreatment and/or fractionation is needed. The macroscopic separation of organs and tissues, isolation of certain types of cells, cell disruption and separation of sub-cellular fractions, as well as isolation of a specific biomolecules become important. Furthermore, to understand molecular mechanisms, the identification of intermediate-often highly instable--metabolites is necessary. Real life applications are reviewed in this work for aquatic samples, soils and sediments, plants, yeast, and urine.
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Affiliation(s)
- Katarzyna Wrobel
- Instituto de Investigaciones Cientificas, Universidad de Guanajuato, L de Retana N degree 5, 36000 Guanajuato, Mexico
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36
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Siwek M, Galunsky B, Niemeyer B. Isolation of selenium organic species from antarctic krill after enzymatic hydrolysis. Anal Bioanal Chem 2005; 381:737-41. [PMID: 15655670 DOI: 10.1007/s00216-004-2936-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2004] [Revised: 10/17/2004] [Accepted: 10/20/2004] [Indexed: 11/24/2022]
Abstract
Total selenium content and its distribution in the soluble and insoluble protein-bound fractions obtained after aqueous extraction of antarctic krill samples were determined. About 26% of the total selenium (2.4 microg g-1 dry weight) was found in the supernatant; the rest was in the pellet. Isolation of low molecular selenium-containing fractions was also performed by enzymatic digestion of the protein, followed by size-exclusion chromatography in conjunction with atomic absorption spectrometry. From the applied various proteinases (pronase E, subtilisin Carlsberg, trypsin, chymotrypsin, proteinase and proteinase N from Bacillus subtilis and Novo 0.6 MPX enzyme), the treatment with pronase E led to best recovery of selenium. About 96% of the total Se was found in the hydrolysate, mainly in low molecular weight fractions. Eighty percent of the Se species were in fractions with molecular weights in the range of amino acids and short peptides. High-performance liquid chromatography/inductively coupled plasma mass spectrometry (HPLC-ICP-MS) allowed the identification of selenomethionine and the assumption that selenocystine or its derivatives were the main species in these fractions.
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Affiliation(s)
- Mariana Siwek
- Institute of Biotechnology II, Technical University Hamburg-Harburg, Denickestrasse 15, 21071, Hamburg, Germany.
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37
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Mandal DK, Bhattacharya B, Das RD. Thermodynamics of Extraction of Selenium by Tri‐iso‐octyl Amine (TIOA) from Chloride Medium. SEP SCI TECHNOL 2005. [DOI: 10.1081/ss-120034189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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38
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Viñas P, López-García I, Merino-Meroño B, Hernández-Córdoba M. Ion chromatography-hydride generation-atomic fluorescence spectrometry speciation of tellurium. Appl Organomet Chem 2005. [DOI: 10.1002/aoc.929] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Amereih S, Meisel T, Scholger R, Wegscheider W. Antimony speciation in soil samples along two Austrian motorways by HPLC-ID-ICP-MS. ACTA ACUST UNITED AC 2005; 7:1200-6. [PMID: 16307072 DOI: 10.1039/b510321e] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Distribution of antimony and its inorganic species in soil samples along two traffic routes (A14, Rankweil and S36, Knittelfeld) in Austria was determined, since vehicle emissions are an important anthropogenic source of Sb in soil. The samples were taken along three parallel lines at about 0.2, 2 and 10 m distances from the edge of the road and in two depths range (0-5 and 5-10 cm from the soil surface). The optimized extraction was carried out using 100 mmol L(-1) citric acid at pH 2.08 applying an ultrasonic bath for 45 min at room temperature. Speciation analyses were done using on-line isotope dilution after a chromatographic separation of Sb species. Results of the two traffic routes confirmed significant accumulations of Sb at surface (0-5 cm depth) exceeding the natural background values by more than ten times at the S36 or four times at the A14. Concentrations of the extractable inorganic species decreased to natural background levels within a few meters from the edge of the traffic lane. The predominant Sb species was Sb(V). The Sb(III) concentrations at 5-10 cm depths range are nearly constant with distance from the edges of the two roads. Magnetic susceptibility data of all soil samples show the same distribution pattern as Sb and Sb(V) concentrations along the two traffic roads with an excellent correlation. This is an evidence for an anthropogenic source of Sb such as abrasions of motor vehicles surfaces or braking linings. The input of Sb and its inorganic species at one of the sampling sites (Knittelfeld) in samples taken in 2002 and in those taken recently (2005) was monitored. An increase in Sb (>or=30%), Sb(v)(>or=51%) and Sb(iii)(>or=10%) concentrations was only observed near the edge (<or=2 m) of the road.
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Affiliation(s)
- Sameer Amereih
- General and Analytical Chemistry, University of Leoben, Franz-Josef-Strasse18, A-8700, Leoben, Austria.
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40
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Dopp E, Hartmann LM, Florea AM, Rettenmeier AW, Hirner AV. Environmental distribution, analysis, and toxicity of organometal(loid) compounds. Crit Rev Toxicol 2004; 34:301-33. [PMID: 15239389 DOI: 10.1080/10408440490270160] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The biochemical modification of the metals and metalloids mercury, tin, arsenic, antimony, bismuth, selenium, and tellurium via formation of volatile metal hydrides and alkylated species (volatile and involatile) performs a fundamental role in determining the environmental processing of these elements. In most instances, the formation of such species increases the environmental mobility of the element, and can result in bioaccumulation in lipophilic environments. While inorganic forms of most of these compounds are well characterized (e.g., arsenic, mercury) and some of them exhibit low toxicity (e.g., tin, bismuth), the more lipid-soluble organometals can be highly toxic. Methylmercury poisoning (e.g., Minamata disease) and tumor development in rats after exposure to dimethylarsinic acid or tributyltin oxide are just some examples. Data on the genotoxicity (and the neurotoxicity) as well as the mechanisms of cellular action of organometal(loid) compounds are, however, scarce. Many studies have shown that the production of such organometal(loid) species is possible and likely whenever anaerobic conditions (at least on a microscale) are combined with available metal(loid)s and methyl donors in the presence of suitable organisms. Such anaerobic conditions can exist within natural environments (e.g., wetlands, pond sediments) as well as within anthropogenic environmental systems (e.g., waste disposal sites and sewage treatments plants). Some methylation can also take place under aerobic conditions. This article gives an overview about the environmental distribution of organometal(loid) compounds and the potential hazardous effects on animal and human health. Genotoxic effects in vivo and in vitro in particular are discussed.
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Affiliation(s)
- E Dopp
- Institut für Hygiene und Arbeitsmedizin, Universitätsklinikum Essen, Essen, Germany.
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41
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Francesconi KA, Kuehnelt D. Determination of arsenic species: A critical review of methods and applications, 2000–2003. Analyst 2004; 129:373-95. [PMID: 15116227 DOI: 10.1039/b401321m] [Citation(s) in RCA: 362] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
We review recent research in the field of arsenic speciation analysis with the emphasis on significant advances, novel applications and current uncertainties.
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Affiliation(s)
- Kevin A Francesconi
- Institute of Chemistry - Analytical Chemistry, Karl-Franzens University, Universitaetsplatz 1, 8010 Graz, Austria
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42
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Yu C, Cai Q, Guo ZX, Yang Z, Khoo SB. Speciation analysis of tellurium by solid-phase extraction in the presence of ammonium pyrrolidine dithiocarbamate and inductively coupled plasma mass spectrometry. Anal Bioanal Chem 2003; 376:236-42. [PMID: 12690421 DOI: 10.1007/s00216-003-1895-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2002] [Revised: 02/28/2003] [Accepted: 03/05/2003] [Indexed: 11/30/2022]
Abstract
Under acidic conditions tellurium(IV) formed a complex with ammonium pyrrolidine dithiocarbamate (APDC). The tellurium(IV) complex was completely retained on a non-polar Isolute silica-based octadecyl (C(18)) sorbent-containing solid-phase extraction (SPE) cartridge, while the uncomplexed Te(VI) passed through the cartridge and remained as a free species in the solution. Only partial Te(IV) was retained on the SPE cartridge for samples without addition of APDC. On the basis of different retention behaviours of the complexed Te(IV) and uncomplexed Te(VI), a simple and highly sensitive method is proposed for the determination of total tellurium and Te(VI) by SPE separation and inductively coupled plasma mass spectrometry (ICP-MS) detection. The Te(IV) concentration was calculated as the difference between total tellurium and Te(VI) concentrations. The detection limit (3 sigma) is 3 ng L(-1) tellurium. Factors affecting the separation and detection of tellurium species were investigated. Coexisting ions did not show significant interferences with the Te(IV)-APDC complex retention and the subsequent ICP-MS detection of Te. The method has been successfully applied to the tellurium speciation analysis in waters with spiked recoveries for Te(IV) and Te(VI) of 86.0-108% and 87.1-97.4%, respectively.
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Affiliation(s)
- Chunhai Yu
- Centre for Advanced Water Technology, Innovation Centre (NTU), Block 2, Unit 241, 18 Nanyang Drive, 637723 Singapore
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Sample preparation for speciation of selenium. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0166-526x(03)41032-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Sample preparation for arsenic speciation. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s0166-526x(03)41031-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Lindemann T, Hintelmann H. Identification of selenium-containing glutathione S-conjugates in a yeast extract by two-dimensional liquid chromatography with inductively coupled plasma MS and nanoelectrospray MS/MS detection. Anal Chem 2002; 74:4602-10. [PMID: 12349960 DOI: 10.1021/ac020196g] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An approach for the identification of unknown selenium-containing biomolecules was developed, enabling the identification of selenodiglutathione (GS-Se-SG) and the mixed selenotrisulfide of glutathione and cysteinylglycine (GS-Se-SCG) in aqueous yeast extracts. The method consists of two-dimensional liquid chromatography, inductively coupled plasma mass spectrometry (ICPMS) and nanoelectrospray tandem mass spectrometry. Analytes were separated by size-exclusion chromatography followed by preconcentration and separation on a porous graphitic carbon HPLC column. The HPLC effluent was monitored for selenium by ICPMS, and two selenium-containing fractions were isolated and analyzed by nanoelectrospray MS. The nanoelectrospray technique has a low sample consumption of approximately 80 nL/min, enabling a preconcentration of the sample to a few microliters. Mass spectra of the two fractions showed the characteristic Se isotopic pattern centered at m/z 693.1 and 564.0 for the [M + H]+ 80Se ions. MS/MS spectra of adjacent parent ions confirmed the presence of Se. The two selenium species were identified as GS-Se-SG and GS-Se-SCG by collision induced dissociation (CID). The accurately measured masses of the most abundant 691 and 693 u parent ions are in good agreement (differences = 3 ppm) with the theoretical masses. To our knowledge, this is the first identification of GS-Se-SG and GS-Se-SCG in biological matrixes by MS/MS.
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Affiliation(s)
- Torsten Lindemann
- Water Quality Centre, Trent University, Peterborough, Ontario, Canada.
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Current literature in mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2001; 36:225-235. [PMID: 11345053 DOI: 10.1002/jms.89] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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