Miniaturized and automated sample pretreatment for determination of PCBs in environmental aqueous samples using an on-line microporous membrane liquid-liquid extraction-gas chromatography system

Thaer Barri; Staffan Bergström; J Norberg; Jan Åke Jönsson

doi:10.1021/ac035089g

Miniaturized and automated sample pretreatment for determination of PCBs in environmental aqueous samples using an on-line microporous membrane liquid-liquid extraction-gas chromatography system

Thaer Barri, Staffan Bergström, J Norberg, Jan Åke Jönsson

Centre for Analysis and Synthesis

Research output: Contribution to journal › Article › peer-review

Abstract

A new, fast, and automated sample pretreatment technique for determination of lipophilic organic compounds in aqueous samples has been developed and applied to the determination of polychlorinated biphenyls (PCBs) in environmental river water. It is based on miniaturized microporous membrane liquid-liquid extraction coupled on-line to gas chromatography (GC) with electron capture detection. The heart of the system that simultaneously connects the sample pretreatment step to the final GC analysis has been named the extracting syringe (ESy). The ESy carries a miniaturized membrane extraction card attached to an electrically and mechanically designed installment and is mounted directly over a GC injector for fully automated injection of the extract. A method was developed to extract 10 PCB congeners from 1-mL water samples (after addition of 40% acetonitrile) with an extraction time of 10 min. The optimized methodology showed good linearity (in the dynamic concentration range of 5 ng L-1-1 mug L-1), enrichment factors of 33-40 times, repeatable extractions (RSD 2-5%, n = 4), a

Original language	English
Pages (from-to)	1928-1934
Journal	Analytical Chemistry
Volume	76
Issue number	7
DOIs	https://doi.org/10.1021/ac035089g
Publication status	Published - 2004

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)

Subject classification (UKÄ)

Analytical Chemistry

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10.1021/ac035089g

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@article{02a87f0bc7e64391b6fc247dd130a519,

title = "Miniaturized and automated sample pretreatment for determination of PCBs in environmental aqueous samples using an on-line microporous membrane liquid-liquid extraction-gas chromatography system",

abstract = "A new, fast, and automated sample pretreatment technique for determination of lipophilic organic compounds in aqueous samples has been developed and applied to the determination of polychlorinated biphenyls (PCBs) in environmental river water. It is based on miniaturized microporous membrane liquid-liquid extraction coupled on-line to gas chromatography (GC) with electron capture detection. The heart of the system that simultaneously connects the sample pretreatment step to the final GC analysis has been named the extracting syringe (ESy). The ESy carries a miniaturized membrane extraction card attached to an electrically and mechanically designed installment and is mounted directly over a GC injector for fully automated injection of the extract. A method was developed to extract 10 PCB congeners from 1-mL water samples (after addition of 40% acetonitrile) with an extraction time of 10 min. The optimized methodology showed good linearity (in the dynamic concentration range of 5 ng L-1-1 mug L-1), enrichment factors of 33-40 times, repeatable extractions (RSD 2-5%, n = 4), a",

author = "Thaer Barri and Staffan Bergstr{\"o}m and J Norberg and J{\"o}nsson, {Jan {\AA}ke}",

note = "The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)",

year = "2004",

doi = "10.1021/ac035089g",

language = "English",

volume = "76",

pages = "1928--1934",

journal = "Analytical Chemistry",

issn = "1520-6882",

publisher = "The American Chemical Society (ACS)",

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Miniaturized and automated sample pretreatment for determination of PCBs in environmental aqueous samples using an on-line microporous membrane liquid-liquid extraction-gas chromatography system. / Barri, Thaer; Bergström, Staffan; Norberg, J et al.
In: Analytical Chemistry, Vol. 76, No. 7, 2004, p. 1928-1934.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Miniaturized and automated sample pretreatment for determination of PCBs in environmental aqueous samples using an on-line microporous membrane liquid-liquid extraction-gas chromatography system

AU - Barri, Thaer

AU - Bergström, Staffan

AU - Norberg, J

AU - Jönsson, Jan Åke

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004)

PY - 2004

Y1 - 2004

N2 - A new, fast, and automated sample pretreatment technique for determination of lipophilic organic compounds in aqueous samples has been developed and applied to the determination of polychlorinated biphenyls (PCBs) in environmental river water. It is based on miniaturized microporous membrane liquid-liquid extraction coupled on-line to gas chromatography (GC) with electron capture detection. The heart of the system that simultaneously connects the sample pretreatment step to the final GC analysis has been named the extracting syringe (ESy). The ESy carries a miniaturized membrane extraction card attached to an electrically and mechanically designed installment and is mounted directly over a GC injector for fully automated injection of the extract. A method was developed to extract 10 PCB congeners from 1-mL water samples (after addition of 40% acetonitrile) with an extraction time of 10 min. The optimized methodology showed good linearity (in the dynamic concentration range of 5 ng L-1-1 mug L-1), enrichment factors of 33-40 times, repeatable extractions (RSD 2-5%, n = 4), a

AB - A new, fast, and automated sample pretreatment technique for determination of lipophilic organic compounds in aqueous samples has been developed and applied to the determination of polychlorinated biphenyls (PCBs) in environmental river water. It is based on miniaturized microporous membrane liquid-liquid extraction coupled on-line to gas chromatography (GC) with electron capture detection. The heart of the system that simultaneously connects the sample pretreatment step to the final GC analysis has been named the extracting syringe (ESy). The ESy carries a miniaturized membrane extraction card attached to an electrically and mechanically designed installment and is mounted directly over a GC injector for fully automated injection of the extract. A method was developed to extract 10 PCB congeners from 1-mL water samples (after addition of 40% acetonitrile) with an extraction time of 10 min. The optimized methodology showed good linearity (in the dynamic concentration range of 5 ng L-1-1 mug L-1), enrichment factors of 33-40 times, repeatable extractions (RSD 2-5%, n = 4), a

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DO - 10.1021/ac035089g

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C2 - 15053653

SN - 1520-6882

VL - 76

SP - 1928

EP - 1934

JO - Analytical Chemistry

JF - Analytical Chemistry

IS - 7

ER -

Miniaturized and automated sample pretreatment for determination of PCBs in environmental aqueous samples using an on-line microporous membrane liquid-liquid extraction-gas chromatography system

Abstract

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