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Ríos JM, Lana NB, Ciocco NF, Covaci A, Barrera-Oro E, Moreira E, Altamirano JC. Implications of biological factors on accumulation of persistent organic pollutants in Antarctic notothenioid fish. Ecotoxicol Environ Saf 2017; 145:630-639. [PMID: 28806565 DOI: 10.1016/j.ecoenv.2017.08.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 07/31/2017] [Accepted: 08/02/2017] [Indexed: 06/07/2023]
Abstract
In the present study, the possible associations between selected persistent organic pollutants (POPs) and biological factors were assessed in different tissues of two Antarctic notothenioid fish: Notothenia rossii (NOR) and Trematomus newnesi (TRN) collected at Potter Cove, King George Island/Isla 25 de Mayo, South Shetland Islands. Specifically, association patterns between biological factors (body size, lipid content, body condition) and POP concentrations (polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDT) and metabolites, polybrominated diphenyl ethers (PBDEs), and hexachlorocyclohexane (HCH), hexachlorobenzene (HCB), chlordanes (CHLs) and methoxylated polybrominated diphenyl ethers (MeO-PBDEs)), were explored by using two approaches: multivariate analyses (principal component analysis: PCA) and intraspecific correlations. Integrating results suggest that biological factors such as size, KI and tissue type seemed to be associated to selective accumulation of POPs for immature specimens of N. rossii, and KI and tissue type for mature specimens of T. newnesi. Each particular factor should be considered when choosing N. rossii or T. newnesi as sentinels for POPs pollution in Antarctic marine environments. Further, both nototheniids showed a selective accumulation pattern in their gonads of penta-chlorinated biphenyls (penta-CBs; 55.5 and 29ngg-1 lw for N. rossii and T. newnesi, respectively) and organochlorine pesticides such as DDTs (199 and 13.3ngg-1 lw, for N. rossii and T. newnesi respectively), and of polybrominated diphenyl ethers (PBDEs) in gills (97.2 and 22.1 for ngg-1 lw, for N. rossii and T. newnesi, respectively), highlighting the importance of these tissues in monitoring studies of pollution in fish. The current study expands the knowledge concerning the biological factors to be investigated when specific pollutants are monitored and supports the importance of tissue type for the selective accumulation of POPs in Antarctic fish. Additionally, a contribution to the scarce data on concentration of MeO-PBDEs in Antarctic marine organisms, particularly in the highly diverse perciform suborder Notothenioidei is provided.
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Affiliation(s)
- J M Ríos
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CCT-CONICET), Mendoza 5500, Argentina.
| | - N B Lana
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CCT-CONICET), Mendoza 5500, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina.
| | - N F Ciocco
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina; Instituto Argentino de Investigaciones de las Zonas Áridas (IADIZA,CCT- CONICET), Mendoza 5500, Argentina.
| | - A Covaci
- Toxicological Center, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium.
| | - E Barrera-Oro
- Museo Argentino de Ciencias Naturales Bernardino Rivadavia and CONICET, Buenos Aires, Argentina; Instituto Antártico Argentino (IAA), Buenos Aires, Argentina.
| | - E Moreira
- Instituto Antártico Argentino (IAA), Buenos Aires, Argentina.
| | - J C Altamirano
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CCT-CONICET), Mendoza 5500, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina.
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Berton P, Mammana SB, Locatelli DA, Lana NB, Hapon MB, Camargo AB, Altamirano JC. Determination of polybrominated diphenyl ethers in milk samples. Development of green extraction coupled techniques for sample preparation. Electrophoresis 2017. [PMID: 27739583 DOI: 10.1002/elps.v38.3-410.1002/elps.201600247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Ultrasound-assisted extraction (UAE), cloud point extraction (CPE), and ultrasound back-extraction (UABE) techniques have been coupled for lixiviation, preconcentration, and cleanup of polybrominated diphenyl ethers (PBDEs) from milk samples for determination by gas chromatography-electron capture detection (GC-ECD). Physicochemical parameters that affect the efficiency of the extraction system were investigated using a design of experiments based on multivariate statistical tools, and considering the sample matrix along the development. The coupling of the leaching step, UAE, enhanced ca. 3.5 times the extraction efficiency of the former sample preparation methodology (CPE-UABE) leading to cleaner sample extracts suitable for GC analysis. Under optimum conditions, the proposed methodology exhibits successful performance in terms of linearity and precision, with recoveries in the range of 68-70% and LODs within the range 0.05-0.5 ng/g dry weight (d.w.). The proposed sample preparation methodology coupled three green analytical techniques. It expands the application frontiers of CPE for the analysis of biological samples by GC. The optimized methodology was used for determination of PBDEs in powder milk samples, from both commercial and human sources.
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Affiliation(s)
- Paula Berton
- Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CONICET), Mendoza, Mendoza, Argentina
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Sabrina B Mammana
- Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CONICET), Mendoza, Mendoza, Argentina
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Daniela A Locatelli
- Instituto de Biología Agrícola de Mendoza (IBAM, CONICET), Mendoza, Argentina
- Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Chacras de Coria, Mendoza, Argentina
| | - Nerina B Lana
- Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CONICET), Mendoza, Mendoza, Argentina
| | - María B Hapon
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU, CONICET), Mendoza, Argentina
| | - Alejandra B Camargo
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
- Instituto de Biología Agrícola de Mendoza (IBAM, CONICET), Mendoza, Argentina
- Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Chacras de Coria, Mendoza, Argentina
| | - Jorgelina C Altamirano
- Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA, CONICET), Mendoza, Mendoza, Argentina
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
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Berton P, Mammana SB, Locatelli DA, Lana NB, Hapon MB, Camargo AB, Altamirano JC. Determination of polybrominated diphenyl ethers in milk samples. Development of green extraction coupled techniques for sample preparation. Electrophoresis 2016; 38:460-468. [DOI: 10.1002/elps.201600247] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 10/03/2016] [Accepted: 10/05/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Paula Berton
- Instituto Argentino de Nivología; Glaciología y Ciencias Ambientales (IANIGLA, CONICET); Mendoza Mendoza Argentina
- Facultad de Ciencias Exactas y Naturales; Universidad Nacional de Cuyo; Mendoza Argentina
| | - Sabrina B. Mammana
- Instituto Argentino de Nivología; Glaciología y Ciencias Ambientales (IANIGLA, CONICET); Mendoza Mendoza Argentina
- Facultad de Ciencias Exactas y Naturales; Universidad Nacional de Cuyo; Mendoza Argentina
| | - Daniela A. Locatelli
- Instituto de Biología Agrícola de Mendoza (IBAM, CONICET); Mendoza Argentina
- Facultad de Ciencias Agrarias; Universidad Nacional de Cuyo; Chacras de Coria Mendoza Argentina
| | - Nerina B. Lana
- Instituto Argentino de Nivología; Glaciología y Ciencias Ambientales (IANIGLA, CONICET); Mendoza Mendoza Argentina
| | - María B. Hapon
- Facultad de Ciencias Exactas y Naturales; Universidad Nacional de Cuyo; Mendoza Argentina
- Instituto de Medicina y Biología Experimental de Cuyo (IMBECU, CONICET); Mendoza Argentina
| | - Alejandra B. Camargo
- Facultad de Ciencias Exactas y Naturales; Universidad Nacional de Cuyo; Mendoza Argentina
- Instituto de Biología Agrícola de Mendoza (IBAM, CONICET); Mendoza Argentina
- Facultad de Ciencias Agrarias; Universidad Nacional de Cuyo; Chacras de Coria Mendoza Argentina
| | - Jorgelina C. Altamirano
- Instituto Argentino de Nivología; Glaciología y Ciencias Ambientales (IANIGLA, CONICET); Mendoza Mendoza Argentina
- Facultad de Ciencias Exactas y Naturales; Universidad Nacional de Cuyo; Mendoza Argentina
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Berton P, Lana NB, Ríos JM, García-Reyes JF, Altamirano JC. State of the art of environmentally friendly sample preparation approaches for determination of PBDEs and metabolites in environmental and biological samples: A critical review. Anal Chim Acta 2015; 905:24-41. [PMID: 26755134 DOI: 10.1016/j.aca.2015.11.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 11/04/2015] [Accepted: 11/08/2015] [Indexed: 11/17/2022]
Abstract
Green chemistry principles for developing methodologies have gained attention in analytical chemistry in recent decades. A growing number of analytical techniques have been proposed for determination of organic persistent pollutants in environmental and biological samples. In this light, the current review aims to present state-of-the-art sample preparation approaches based on green analytical principles proposed for the determination of polybrominated diphenyl ethers (PBDEs) and metabolites (OH-PBDEs and MeO-PBDEs) in environmental and biological samples. Approaches to lower the solvent consumption and accelerate the extraction, such as pressurized liquid extraction, microwave-assisted extraction, and ultrasound-assisted extraction, are discussed in this review. Special attention is paid to miniaturized sample preparation methodologies and strategies proposed to reduce organic solvent consumption. Additionally, extraction techniques based on alternative solvents (surfactants, supercritical fluids, or ionic liquids) are also commented in this work, even though these are scarcely used for determination of PBDEs. In addition to liquid-based extraction techniques, solid-based analytical techniques are also addressed. The development of greener, faster and simpler sample preparation approaches has increased in recent years (2003-2013). Among green extraction techniques, those based on the liquid phase predominate over those based on the solid phase (71% vs. 29%, respectively). For solid samples, solvent assisted extraction techniques are preferred for leaching of PBDEs, and liquid phase microextraction techniques are mostly used for liquid samples. Likewise, green characteristics of the instrumental analysis used after the extraction and clean-up steps are briefly discussed.
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Affiliation(s)
- Paula Berton
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA) - CONICET, Mendoza 5500, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza 5500, Argentina
| | - Nerina B Lana
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA) - CONICET, Mendoza 5500, Argentina
| | - Juan M Ríos
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA) - CONICET, Mendoza 5500, Argentina
| | - Juan F García-Reyes
- Analytical Chemistry Research Group, Department of Physical and Analytical Chemistry, University of Jaen, 23071 Jaen, Spain
| | - Jorgelina C Altamirano
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA) - CONICET, Mendoza 5500, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza 5500, Argentina.
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Schuster JK, Harner T, Fillmann G, Ahrens L, Altamirano JC, Aristizábal B, Bastos W, Castillo LE, Cortés J, Fentanes O, Gusev A, Hernandez M, Ibarra MV, Lana NB, Lee SC, Martínez AP, Miglioranza KSB, Puerta AP, Segovia F, Siu M, Tominaga MY. Assessing polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in air across Latin American countries using polyurethane foam disk passive air samplers. Environ Sci Technol 2015; 49:3680-3686. [PMID: 25686404 DOI: 10.1021/es506071n] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A passive air sampling network has been established to investigate polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) at Global Atmospheric Passive Sampling (GAPS) sites and six additional sites in the Group of Latin American and Caribbean Countries (GRULAC) region. The air sampling network covers background, agricultural, rural, and urban sites. Samples have been collected over four consecutive periods of 6 months, which started in January 2011 [period 1 (January to June 2011), period 2 (July to December 2011), period 3 (January to June 2012), and period 4 (July 2012 to January 2013)]. Results show that (i) the GAPS passive samplers (PUF disk type) and analytical methodology are adequate for measuring PCDD/F burdens in air and (ii) PCDD/F concentrations in air across the GRULAC region are widely variable by almost 2 orders of magnitude. The highest concentrations in air of Σ4-8PCDD/Fs were found at the urban site São Luis (Brazil, UR) (i.e., 2560 fg/m3) followed by the sites in São Paulo (Brazil, UR), Mendoza (Argentina, RU), and Sonora (Mexico, AG) with values of 1690, 1660, and 1610 fg/m3, respectively. Very low concentrations of PCDD/Fs in air were observed at the background site Tapanti (Costa Rica, BA), 10.8 fg/m3. This variability is attributed to differences in site characteristics and potential local/regional sources as well as meteorological influences. The measurements of PCDD/Fs in air agree well with model-predicted concentrations performed using the Global EMEP Multimedia Modeling System (GLEMOS) and emission scenario constructed on the basis of the UNEP Stockholm Convention inventory of dioxin and furan emissions.
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Affiliation(s)
- Jasmin K Schuster
- †Air Quality Processes Research Section, Environment Canada, Toronto, ON M3H 5T4, Canada
| | - Tom Harner
- †Air Quality Processes Research Section, Environment Canada, Toronto, ON M3H 5T4, Canada
| | - Gilberto Fillmann
- ‡Universidade Federal do Rio Grande, Instituto de Oceanografia, Rio Grande, RS, Brazil
| | - Lutz Ahrens
- †Air Quality Processes Research Section, Environment Canada, Toronto, ON M3H 5T4, Canada
| | - Jorgelina C Altamirano
- §Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
- ⊗Laboratorio de Quı́mica Ambiental, Instituto Argentino de Nivologı́a, Glaciologı́a y Ciencias Ambientales-CONICET, Mendoza, Argentina
| | | | - Wanderley Bastos
- ∥Laboratório de Biogeoquı́mica Ambiental, Universidade Federal de Rondônia, Porto Velho, Brazil
| | | | - Johana Cortés
- ●Universidad Nacional de Colombia, Manizales, Colombia
| | | | - Alexey Gusev
- @Meteorological Synthesizing Centre-East (MSC-E), Moscow, Russia
| | | | | | - Nerina B Lana
- §Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
- ⊗Laboratorio de Quı́mica Ambiental, Instituto Argentino de Nivologı́a, Glaciologı́a y Ciencias Ambientales-CONICET, Mendoza, Argentina
| | - Sum Chi Lee
- †Air Quality Processes Research Section, Environment Canada, Toronto, ON M3H 5T4, Canada
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Lana NB, Berton P, Covaci A, Ciocco NF, Barrera-Oro E, Atencio A, Altamirano JC. Fingerprint of persistent organic pollutants in tissues of Antarctic notothenioid fish. Sci Total Environ 2014; 499:89-98. [PMID: 25173865 DOI: 10.1016/j.scitotenv.2014.08.033] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 08/08/2014] [Accepted: 08/10/2014] [Indexed: 05/22/2023]
Abstract
In the present work, persistent organic pollutants (POPs), such as polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDT) and metabolites, polybrominated diphenyl ethers (PBDEs), and hexachlorocyclohexane (HCH) were analyzed in three Antarctic notothenioids fish species: Trematomus newnesi (TRN), Notothenia coriiceps (NOC) and Notothenia rossii (NOR). The contribution of each POP-family to the total load was as follows: ΣPCB (40%)>ΣDDT (27%)>ΣPBDEs (23%)>ΣHCH (10%). Among the 23 PCB congeners analyzed, penta-CBs homologues were the prevalent group, followed by hexa-CBs and hepta-CBs. DDT and its metabolites presented the following trend: p,p'-DDT>p,p'-DDE~p,p'-DDD. PBDE profile was dominated by BDE-47 and BDE-99 congeners, followed by BDE-100>BDE-28>BDE-154, BDE-153. Among HCHs, the γ-HCH isomer was detected in all samples, constituting 69% total HCH load, while α-HCH and β-HCH contributions were 15% and 16%, respectively. The levels of POPs reported here suggest that NOR and NOC are more susceptible to accumulate the analyzed contaminants than TRN, a species not previously analyzed for POPs. Distribution of POPs among different tissues of the three species (muscle, liver, gonads, and gills) was also investigated. Considering lipid weight, the general pattern of POPs distribution in tissues indicated that while gonads showed higher levels of PCBs, DDTs and HCH, the most significant PBDE concentrations were recorded in gills. Also, a comparative analysis of POPs concentration in fish samples from Antarctic area was included.
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Affiliation(s)
- Nerina B Lana
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA)-CONICET, Mendoza, P.O. Box 131 ZC5500, Mendoza, Argentina
| | - Paula Berton
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA)-CONICET, Mendoza, P.O. Box 131 ZC5500, Mendoza, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina
| | - Adrian Covaci
- Toxicological Center, Department of Pharmaceutical Sciences, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Néstor F Ciocco
- Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina; Instituto Argentino de Investigación de Zonas Áridas (IADIZA)-CONICET, Mendoza, Argentina
| | - Esteban Barrera-Oro
- Instituto Antártico Argentino (IAA), Buenos Aires, Argentina; Museo Argentino de Ciencias Naturales Bernardino Rivadavia-CONICET, Buenos Aires, Argentina
| | - Adrián Atencio
- Laboratorio de Estratigrafía Glaciar y Geoquímica del Agua y la Nieve (LEGAN)-IAA-CONICET, Mendoza, Argentina
| | - Jorgelina C Altamirano
- Laboratorio de Química Ambiental, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA)-CONICET, Mendoza, P.O. Box 131 ZC5500, Mendoza, Argentina; Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo, Mendoza, Argentina.
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Lana NB, Berton P, Covaci A, Atencio AG, Ciocco NF, Altamirano JC. Ultrasound leaching-dispersive liquid-liquid microextraction based on solidification of floating organic droplet for determination of polybrominated diphenyl ethers in sediment samples by gas chromatography-tandem mass spectrometry. J Chromatogr A 2013; 1285:15-21. [PMID: 23473516 DOI: 10.1016/j.chroma.2013.02.027] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2012] [Revised: 02/04/2013] [Accepted: 02/10/2013] [Indexed: 10/27/2022]
Abstract
Ultrasound leaching-dispersive liquid-liquid microextraction using solidification of floating organic droplet (USL-DLLME-SFO) technique is proposed for extraction and isolation of polybrominated diphenyl ethers (PBDEs) from sediment and further determination by gas chromatography-tandem mass spectrometry (GC-MS/MS). Parameters that affect the efficiency of the procedure were investigated by a full factorial (2(k)) screening design. Variables showing significant effects on the analytical responses were considered within a further central composite design (CCD). The optimization assays have led to following protocol: ultrasound assisted lixiviation of 1g sediment was carried out by using 1.2 mL MeOH. Further, the analytes were isolated from 0.4 mL of the extract using the DLLME-SFO technique. The microextraction was performed using 0.1 mL MeOH, 22 mg 1-dodecanol, 1 mL NaCl solution 6.15M and 4.4 mL ultrapure water as dispersive and extracting solvents, medium ionic strength and dispersant bulk, respectively. Under optimum conditions, the method exhibits good performance in terms of linearity and precision (RSD<9.2%), with recoveries above 71% and limits of detection (LODs) within the range 0.5-1.8 pgg(-1) dry weight (d.w.). Method validation was demonstrated through the analysis of environmental sediment samples in which PBDEs were detected and quantified. The presence of BDE-47, -100, -99 and -153 was reported within the concentration range of <LOD to 29 pgg(-1) d.w. The proposed methodology constitutes a suitable approach for the analysis of PBDEs in complex solid samples requires minimum organic solvents consumption, sample manipulation, and increases sample throughput.
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Affiliation(s)
- Nerina B Lana
- Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales, CCT Mendoza-CONICET, ZC 330 (5500) Mendoza, Argentina
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Fontana AR, Lana NB, Martinez LD, Altamirano JC. Ultrasound-assisted leaching-dispersive solid-phase extraction followed by liquid–liquid microextraction for the determination of polybrominated diphenyl ethers in sediment samples by gas chromatography–tandem mass spectrometry. Talanta 2010; 82:359-66. [DOI: 10.1016/j.talanta.2010.04.050] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2010] [Revised: 04/22/2010] [Accepted: 04/23/2010] [Indexed: 10/19/2022]
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