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Tölgyessy P, Nagyová S. Contribution to the determination of tributyltin in water by stir bar sorptive extraction‒thermal desorption‒gas chromatography‒tandem mass spectrometry. J Chromatogr A 2022; 1678:463358. [PMID: 35905681 DOI: 10.1016/j.chroma.2022.463358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/12/2022] [Accepted: 07/19/2022] [Indexed: 10/17/2022]
Abstract
An environmentally friendly method was developed to determine tributyltin (TBT) in water at the levels required by the European Union Water Framework Directive (EU WFD) using stir bar sorptive extraction (SBSE) in combination with thermal desorption‒gas chromatography‒triple quadrupole tandem mass spectrometry. The main focus of the method development was on addressing some aspects of reducing blank values (minimizing the use of chemicals, glassware cleaning, pretreatment of sorptive stir bars) and optimizing the SBSE procedure variables (sample volume, polarity of sample solution, extraction time). The performance of the method was studied in terms of linearity, matrix effect, method limits and accuracy (precision and trueness) using MilliQ, tap and surface water. TBT quantification limit for the studied matrices ranged from 0.049 to 0.055 ng L‒1 and repeatability (RSD%, n = 10) and recovery at the environmental quality standard (EQS) concentration of 0.2 ng L‒1 were in the range of 6‒18% and 88‒107%, respectively, indicating good performance of the method. The matrix effect of river water (‒78%) and artificial seawater (‒83%) compared to MilliQ water showed the necessity to use a matrix-matched calibration when analysing TBT in surface water samples. The developed sample preparation was further evaluated for greenness using the recently introduced AGREEprep assessment, which revealed a much greener performance of the proposed method over the compared CEN/TS 16692 method. The method meets the requirements of the EU WFD and is suitable for monitoring, evaluation and classification of the chemical status of surface waters.
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Affiliation(s)
- Peter Tölgyessy
- Slovak National Water Reference Laboratory, Water Research Institute, Nábrežie arm. gen. L. Svobodu 5, Bratislava 812 49, Slovak Republic.
| | - Slávka Nagyová
- Slovak National Water Reference Laboratory, Water Research Institute, Nábrežie arm. gen. L. Svobodu 5, Bratislava 812 49, Slovak Republic
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2
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Peña J, Fernández Laespada ME, García Pinto C, Pérez Pavón JL, Moreno Cordero B. Multiple headspace sampling coupled to a programmed temperature vaporizer to improve sensitivity in headspace-gas chromatography. Determination of aldehydes. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1133:121824. [PMID: 31731218 DOI: 10.1016/j.jchromb.2019.121824] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/23/2019] [Accepted: 10/03/2019] [Indexed: 11/26/2022]
Abstract
The improvement of sensitivity in headspace (HS) sampling of not very volatile analytes constitutes a challenge that has usually been approached through coupling with additional techniques. Here we propose a new methodology for increasing sensitivity through a multistep approach. This proof of concept is based on direct coupling of a headspace sampler with a programmed temperature vaporizer (PTV) and a gas chromatograph (GC), with mass spectrometry (MS) detection. Analytes are extracted from the same vial in a stepwise procedure, splitting the headspace generation time of conventional HS into four periods and using the PTV to cryogenically trap the analytes during the successive HS samplings. Solvent vent mode is mandatory in order to retain the analytes, purging the gas solvent at an adequate initial low temperature and flash-heating the PTV liner in a quick ramp (720 °C/min), once the HS samplings are finished. Linear aldehydes, from pentanal to decanal, possible biomarkers of several diseases have been selected as model compounds. This multiple HS method has been compared with conventional HS, and it has been validated in terms of linearity, limits of detection, repeatability, reproducibility and accuracy. The limits of detection (LOD) ranged from 0.004 to 0.159 µg/L. Enrichment factors (EF) in relation to the conventional HS method ranged from 3.0 to 6.7, except for pentanal (EF: 0.8), which is too volatile and polar to be trapped in the PTV with the multiple HS methodology. Similar enrichment factors were obtained in a urine sample.
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Affiliation(s)
- Javier Peña
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Mª Esther Fernández Laespada
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas, Universidad de Salamanca, 37008 Salamanca, Spain.
| | - Carmelo García Pinto
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas, Universidad de Salamanca, 37008 Salamanca, Spain
| | - José Luis Pérez Pavón
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Bernardo Moreno Cordero
- Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Ciencias Químicas, Universidad de Salamanca, 37008 Salamanca, Spain
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3
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He Y, He M, Nan K, Cao R, Chen B, Hu B. Magnetic solid-phase extraction using sulfur-containing functional magnetic polymer for high-performance liquid chromatography-inductively coupled plasma-mass spectrometric speciation of mercury in environmental samples. J Chromatogr A 2019; 1595:19-27. [DOI: 10.1016/j.chroma.2019.02.050] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/20/2019] [Accepted: 02/22/2019] [Indexed: 01/09/2023]
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4
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Magi E, Di Carro M. Marine environment pollution: The contribution of mass spectrometry to the study of seawater. MASS SPECTROMETRY REVIEWS 2018; 37:492-512. [PMID: 27611504 DOI: 10.1002/mas.21521] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 08/29/2016] [Indexed: 05/26/2023]
Abstract
The study of marine pollution has been traditionally addressed to persistent chemicals, generally known as priority pollutants; a current trend in environmental analysis is a shift toward "emerging pollutants," defined as newly identified or previously unrecognized contaminants. The present review is focused on the peculiar contribution of mass spectrometry (MS) to the study of pollutants in the seawater compartment. The work is organized in five paragraphs where the most relevant groups of pollutants, both "classical" and "emerging," are presented and discussed, highlighting the relative data obtained by the means of different MS techniques. The hyphenation of MS and separative techniques, together with the development of different ion sources, makes MS and tandem MS the analytical tool of choice for the determination of trace organic contaminants in seawater. © 2016 Wiley Periodicals, Inc. Mass Spec Rev 37:492-512, 2018.
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Affiliation(s)
- Emanuele Magi
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146, Genoa, Italy
| | - Marina Di Carro
- Department of Chemistry and Industrial Chemistry, University of Genoa, Via Dodecaneso 31, 16146, Genoa, Italy
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5
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Towards tributyltin quantification in natural water at the Environmental Quality Standard level required by the Water Framework Directive. Talanta 2016; 160:499-511. [DOI: 10.1016/j.talanta.2016.07.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2016] [Revised: 07/21/2016] [Accepted: 07/24/2016] [Indexed: 11/17/2022]
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6
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Omar J, Olivares M, Alonso I, Vallejo A, Aizpurua-Olaizola O, Etxebarria N. Quantitative Analysis of Bioactive Compounds from Aromatic Plants by Means of Dynamic Headspace Extraction and Multiple Headspace Extraction-Gas Chromatography-Mass Spectrometry. J Food Sci 2016; 81:C867-73. [DOI: 10.1111/1750-3841.13257] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/27/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Jone Omar
- Dept. of Analytical Chemistry, Faculty of Science and Technology; Univ. of the Basque Country (UPV-EHU); P.O. Box 644 Bilbao 48080 Basque Country Spain
| | - Maitane Olivares
- Dept. of Analytical Chemistry, Faculty of Science and Technology; Univ. of the Basque Country (UPV-EHU); P.O. Box 644 Bilbao 48080 Basque Country Spain
| | - Ibone Alonso
- IDOKI SFC, Technologic Park of Biscay; Ibaizabal Bidea. Building 502,4816 Derio Basque Country Spain
| | - Asier Vallejo
- Dept. of Analytical Chemistry, Faculty of Science and Technology; Univ. of the Basque Country (UPV-EHU); P.O. Box 644 Bilbao 48080 Basque Country Spain
| | - Oier Aizpurua-Olaizola
- Dept. of Analytical Chemistry, Faculty of Science and Technology; Univ. of the Basque Country (UPV-EHU); P.O. Box 644 Bilbao 48080 Basque Country Spain
| | - Nestor Etxebarria
- Dept. of Analytical Chemistry, Faculty of Science and Technology; Univ. of the Basque Country (UPV-EHU); P.O. Box 644 Bilbao 48080 Basque Country Spain
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7
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Trace determination of manganese(II) by temperature-controlled/assisted ionic liquid-based dispersive liquid-phase microextraction and electrothermal atomic absorption spectrometry. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2015. [DOI: 10.1007/s13738-015-0783-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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8
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Li P, He M, Chen B, Hu B. Automated dynamic hollow fiber liquid–liquid–liquid microextraction combined with capillary electrophoresis for speciation of mercury in biological and environmental samples. J Chromatogr A 2015; 1415:48-56. [DOI: 10.1016/j.chroma.2015.08.062] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 08/28/2015] [Accepted: 08/28/2015] [Indexed: 11/28/2022]
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9
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Ariya PA, Amyot M, Dastoor A, Deeds D, Feinberg A, Kos G, Poulain A, Ryjkov A, Semeniuk K, Subir M, Toyota K. Mercury Physicochemical and Biogeochemical Transformation in the Atmosphere and at Atmospheric Interfaces: A Review and Future Directions. Chem Rev 2015; 115:3760-802. [DOI: 10.1021/cr500667e] [Citation(s) in RCA: 228] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Marc Amyot
- Department
of Biological Sciences, Université de Montréal, 90
avenue Vincent-d’Indy, Montreal, Quebec, Canada, H3C 3J7
| | - Ashu Dastoor
- Air
Quality Research Division, Environment Canada, 2121 TransCanada Highway, Dorval, Quebec, Canada, H9P 1J3
| | | | | | | | - Alexandre Poulain
- Department
of Biology, University of Ottawa, 30 Marie Curie, Ottawa, Ontario, Canada, K1N 6N5
| | - Andrei Ryjkov
- Air
Quality Research Division, Environment Canada, 2121 TransCanada Highway, Dorval, Quebec, Canada, H9P 1J3
| | - Kirill Semeniuk
- Air
Quality Research Division, Environment Canada, 2121 TransCanada Highway, Dorval, Quebec, Canada, H9P 1J3
| | - M. Subir
- Department
of Chemistry, Ball State University, 2000 West University Avenue, Muncie, Indiana 47306, United States
| | - Kenjiro Toyota
- Air
Quality Research Division, Environment Canada, 4905 Dufferin Street, Toronto, Ontario, Canada, M3H 5T4
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Moscoso-Pérez C, Fernández-González V, Moreda-Piñeiro J, López-Mahía P, Muniategui-Lorenzo S, Prada-Rodríguez D. Determination of organotin compounds in waters by headspace solid phase microextraction gas chromatography triple quadrupole tandem mass spectrometry under the European Water Framework Directive. J Chromatogr A 2015; 1385:85-93. [DOI: 10.1016/j.chroma.2015.01.070] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 01/19/2015] [Accepted: 01/24/2015] [Indexed: 11/30/2022]
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11
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Experimental design for TBT quantification by isotope dilution SPE–GC–ICP–MS under the European water framework directive. Talanta 2015; 134:576-586. [DOI: 10.1016/j.talanta.2014.11.064] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 11/26/2014] [Accepted: 11/28/2014] [Indexed: 11/15/2022]
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12
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13
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He M, Chen B, Hu B. Recent developments in stir bar sorptive extraction. Anal Bioanal Chem 2013; 406:2001-26. [DOI: 10.1007/s00216-013-7395-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 09/12/2013] [Accepted: 09/23/2013] [Indexed: 10/26/2022]
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14
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Soares BM, Pereira ER, Maciel JV, Vieira AA, Duarte FA. Assessment of dispersive liquid-liquid microextraction for the simultaneous extraction, preconcentration, and derivatization of Hg2+
and CH3
Hg+
for further determination by GC-MS. J Sep Sci 2013; 36:3411-8. [DOI: 10.1002/jssc.201300599] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 07/30/2013] [Accepted: 07/31/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Bruno M. Soares
- Escola de Química e Alimentos; Universidade Federal do Rio Grande; Rio Grande RS Brazil
| | - Ederson R. Pereira
- Escola de Química e Alimentos; Universidade Federal do Rio Grande; Rio Grande RS Brazil
| | - Juliana V. Maciel
- Escola de Química e Alimentos; Universidade Federal do Rio Grande; Rio Grande RS Brazil
| | - Augusto A. Vieira
- Escola de Química e Alimentos; Universidade Federal do Rio Grande; Rio Grande RS Brazil
| | - Fabio A. Duarte
- Escola de Química e Alimentos; Universidade Federal do Rio Grande; Rio Grande RS Brazil
- Departamento de Química; Universidade Federal de Santa Maria; Santa Maria RS Brazil
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15
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Martins C, Vasco E, Paixão E, Alvito P. Total mercury in infant food, occurrence and exposure assessment in Portugal. FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2013; 6:151-7. [PMID: 24779897 DOI: 10.1080/19393210.2013.775603] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Commercial infant food labelled as from organic and conventional origin (n = 87) was analysed for total mercury content using a direct mercury analyser (DMA). Median contents of mercury were 0.50, 0.50 and 0.40 μg kg⁻¹ for processed cereal-based food, infant formulae and baby foods, respectively, with a maximum value of 19.56 μg kg⁻¹ in a baby food containing fish. Processed cereal-based food samples showed statistically significant differences for mercury content between organic and conventional analysed products. Consumption of commercial infant food analysed did not pose a risk to infants when the provisionally tolerable weekly intake (PTWI) for food other than fish and shellfish was considered. By the contrary, a risk to some infants could not be excluded when using the PTWI for fish and shellfish. This is the first study reporting contents of total mercury in commercial infant food from both farming systems and the first on exposure assessment of children to mercury in Portugal.
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Affiliation(s)
- Carla Martins
- a Food and Nutrition Department , National Health Institute Doutor Ricardo Jorge, IP , Lisbon , Portugal
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16
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Cacho J, Campillo N, Viñas P, Hernández-Córdoba M. Headspace sorptive extraction for the analysis of organotin compounds using thermal desorption and gas chromatography with mass spectrometry. J Chromatogr A 2013; 1279:1-6. [DOI: 10.1016/j.chroma.2012.12.067] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 12/20/2012] [Accepted: 12/22/2012] [Indexed: 10/27/2022]
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17
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Devos C, David F, Sandra P. A new validated analytical method for the determination of tributyltin in water samples at the quantification level set by the European Union. J Chromatogr A 2012; 1261:151-7. [DOI: 10.1016/j.chroma.2012.07.072] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 07/10/2012] [Accepted: 07/18/2012] [Indexed: 10/28/2022]
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18
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Recent Research Progress in Stir Bar Sorptive Extraction. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2012. [DOI: 10.3724/sp.j.1096.2011.01766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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19
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Prieto A, Rodil R, Quintana JB, Rodríguez I, Cela R, Möder M. Evaluation of low-cost disposable polymeric materials for sorptive extraction of organic pollutants in water samples. Anal Chim Acta 2011; 716:119-27. [PMID: 22284886 DOI: 10.1016/j.aca.2011.12.023] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Revised: 12/09/2011] [Accepted: 12/10/2011] [Indexed: 11/27/2022]
Abstract
The capabilities of four commercially available and low cost polymeric materials for the extraction of polar and non-polar contaminants (logK(ow)=-0.07-6.88, from caffeine to octocrylene, respectively) from water samples was compared. Tested sorbents were polyethersulphone, polypropylene and Kevlar, compared to polydimethylsiloxane as reference material. Parameters that affect the extraction process such as pH and ionic strength of the sample, extraction time and desorption conditions were thoroughly investigated. A set of experimental partition coefficients (K(pw)), at two different experimental conditions, was estimated for the best suited materials and compared with the theoretical octanol-water (K(ow)) partition coefficients of the analytes. Polyethersulphone displayed the largest extraction yields for both polar and non-polar analytes, with higher K(pw) and lower matrix effects than polydimethylsiloxane and polypropylene. Thus, a sorptive microextraction method, followed by large volume injection (LVI) gas chromatography-tandem mass spectrometry (GC-MS/MS), was proposed using the former sorbent (2 mg) for the simultaneous determination of model compounds in water samples. Good linearity (>0.99) was obtained for most of the analytes, except in the case of 4-nonylphenol (0.9466). Precision (n=4) at 50 and 500 ng L(-1) levels was in the 2-24% and limits of detection (LODs) were in the 0.6-25 ng L(-1) range for all the analytes studied.
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Affiliation(s)
- Ailette Prieto
- Department of Analytical Chemistry, University of the Basque Country, Bilbao, Spain.
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20
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Mao X, Chen B, Huang C, He M, Hu B. Titania immobilized polypropylene hollow fiber as a disposable coating for stir bar sorptive extraction–high performance liquid chromatography–inductively coupled plasma mass spectrometry speciation of arsenic in chicken tissues. J Chromatogr A 2011; 1218:1-9. [DOI: 10.1016/j.chroma.2010.10.103] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2010] [Revised: 10/23/2010] [Accepted: 10/26/2010] [Indexed: 10/18/2022]
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21
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Bai L, Mei B, Guo QZ, Shi ZG, Feng YQ. Magnetic solid-phase extraction of hydrophobic analytes in environmental samples by a surface hydrophilic carbon-ferromagnetic nanocomposite. J Chromatogr A 2010; 1217:7331-6. [DOI: 10.1016/j.chroma.2010.09.060] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2010] [Revised: 09/10/2010] [Accepted: 09/23/2010] [Indexed: 11/24/2022]
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22
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Solventless sample preparation techniques based on solid- and vapour-phase extraction. Anal Bioanal Chem 2010; 399:277-300. [DOI: 10.1007/s00216-010-4296-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 09/26/2010] [Accepted: 10/04/2010] [Indexed: 11/26/2022]
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23
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Occurrence and chemical speciation analysis of organotin compounds in the environment: A review. Talanta 2010; 82:9-24. [DOI: 10.1016/j.talanta.2010.04.046] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Revised: 04/18/2010] [Accepted: 04/19/2010] [Indexed: 11/22/2022]
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24
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Prieto A, Basauri O, Rodil R, Usobiaga A, Fernández L, Etxebarria N, Zuloaga O. Stir-bar sorptive extraction: A view on method optimisation, novel applications, limitations and potential solutions. J Chromatogr A 2010; 1217:2642-66. [DOI: 10.1016/j.chroma.2009.12.051] [Citation(s) in RCA: 243] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2009] [Revised: 12/14/2009] [Accepted: 12/21/2009] [Indexed: 10/20/2022]
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25
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LIU TONGJU, LI SHUFEN, LIU SHAOCONG, LV GANG. OPTIMIZATION OF SUPERCRITICAL FLUID EXTRACTION/HEADSPACE SOLID-PHASE MICROEXTRACTION AND GAS CHROMATOGRAPHY-MASS SPECTROMETRY METHOD FOR DETERMINATING ORGANOTIN COMPOUNDS IN CLAM SAMPLES. J FOOD PROCESS ENG 2009. [DOI: 10.1111/j.1745-4530.2009.00535.x] [Citation(s) in RCA: 11] [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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26
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Santoyo MM, Figueroa JAL, Wrobel K, Wrobel K. Analytical speciation of mercury in fish tissues by reversed phase liquid chromatography–inductively coupled plasma mass spectrometry with Bi3+ as internal standard. Talanta 2009; 79:706-11. [DOI: 10.1016/j.talanta.2009.04.057] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2009] [Revised: 04/24/2009] [Accepted: 04/27/2009] [Indexed: 11/29/2022]
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27
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Optimisation of a headspace-solid-phase micro-extraction method for simultaneous determination of organometallic compounds of mercury, lead and tin in water by gas chromatography–tandem mass spectrometry. J Chromatogr A 2009; 1216:5563-9. [DOI: 10.1016/j.chroma.2009.05.056] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2008] [Revised: 05/11/2009] [Accepted: 05/20/2009] [Indexed: 11/23/2022]
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28
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Lancas FM, Queiroz MEC, Grossi P, Olivares IRB. Recent developments and applications of stir bar sorptive extraction. J Sep Sci 2009; 32:813-24. [DOI: 10.1002/jssc.200800669] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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29
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Cai J, Ouyang G, Gong Y, Pawliszyn J. Simultaneous sampling and analysis for vapor mercury in ambient air using needle trap coupled with gas chromatography–mass spectrometry. J Chromatogr A 2008; 1213:19-24. [DOI: 10.1016/j.chroma.2008.09.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2008] [Revised: 08/20/2008] [Accepted: 09/01/2008] [Indexed: 11/29/2022]
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30
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Xiao Q, Hu B, He M. Speciation of butyltin compounds in environmental and biological samples using headspace single drop microextraction coupled with gas chromatography-inductively coupled plasma mass spectrometry. J Chromatogr A 2008; 1211:135-41. [DOI: 10.1016/j.chroma.2008.09.089] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2008] [Revised: 09/23/2008] [Accepted: 09/26/2008] [Indexed: 10/21/2022]
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31
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Ito R, Kawaguchi M, Sakui N, Honda H, Okanouchi N, Saito K, Nakazawa H. Mercury speciation and analysis in drinking water by stir bar sorptive extraction with in situ propyl derivatization and thermal desorption–gas chromatography–mass spectrometry. J Chromatogr A 2008; 1209:267-70. [DOI: 10.1016/j.chroma.2008.09.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2008] [Revised: 09/09/2008] [Accepted: 09/11/2008] [Indexed: 10/21/2022]
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