Simultaneous analysis of polychlorinated biphenyls and organochlorine pesticides in seawater samples by membrane-assisted solvent extraction combined with gas chromatography–electron capture detector and gas chromatography–tandem mass spectrometry

Shi, Xizhi; Tang, Zigang; Sun, Ailing; Zhou, Lei; Zhao, Jing; Li, Dexiang; Chen, Jiong; Pan, Daodong

doi:10.1016/j.jchromb.2014.09.036

Cited by 16 publications

(12 citation statements)

References 22 publications

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“…Shi et al. used a membrane‐assisted solvent extraction system combined with a GC–electron capture detector to examine 17 PCBs and OCPs in seawater samples simultaneously. However, these methods require time‐consuming and complex steps or high amounts of organic reagents.…”

Section: Introductionmentioning

confidence: 99%

Determination of trace polychlorinated biphenyls and organochlorine pesticides in water samples through large‐volume stir bar sorptive extraction method with thermal desorption gas chromatography

Zhang

Zhu

et al. 2017

J of Separation Science

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A fast and sensitive analytical method based on stir bar sorptive extraction technology with gas chromatography and mass spectrometry was developed to simultaneously analyze 18 kinds of polychlorinated biphenyls and 20 kinds of organochlorine pesticides in aqueous samples. A long adsorption time and small sample volume, which are problems encountered in conventional methods of stir bar sorptive extraction, were effectively solved by simultaneously using multiple stir bars for enrichment with sequential cryofocusing and merged injection. Optimized results showed good linear coefficients in the range of 10-500 ng/L and the method detection limits of 0.12-2.07 ng/L for polychlorinated biphenyls and organochlorine pesticides. The recovery ratios of the spiked samples at different concentrations were between 64.7 and 111.0%, and their relative standard deviations ranged from 0.9 to 17.6%. Four types of the studied compounds were determined in Qiantang River water samples, and their contents were between 0.82 and 5.00 ng/L.

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Section: Introductionmentioning

confidence: 99%

Determination of trace polychlorinated biphenyls and organochlorine pesticides in water samples through large‐volume stir bar sorptive extraction method with thermal desorption gas chromatography

Zhang

Zhu

et al. 2017

J of Separation Science

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“…High chemical and thermal stability of OCPs, as well as lipophilicity led to their widely distribution in the environment, particularly in seawater, surface water, air, fish, food, and humans [2]. However, OCPs have been included in the class of persistent organic pollutants (POPs) due to their high persistence in the environment, low biodegradability and toxicological effects on human beings [3].…”

Section: Introductionmentioning

confidence: 99%

Magnetite nanoparticles surface-modified with a zinc(II)-carboxylate Schiff base ligand as a sorbent for solid-phase extraction of organochlorine pesticides from seawater

2016

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Magnetite nanoparticles were surface-modified with mercaptoacetic acid (MAA), complexed with Zn(II), and then treated with the dual Schiff base (referred to as imine-based ligand; IBL; obtained by reaction of paminobenzoic acid and 2,3-butanedione) to give particles with an architecture of type Fe 3 O 4 @MAA@IBL. These are shown to be viable sorbents for magnetic solid phase extraction of organochlorine pesticides (OCPs) from seawater samples. Efficient extraction of the OCPs probably is due to lone pair-π, π-complexation and π-interactions. The sorbent was characterized by transmission electron microscopy, scanning electron microscopy, FT-IR and energy-dispersive X-ray spectroscopy. The effects of the volumes of sample, sorbent dosage and eluent, adsorption and desorption times, and the salinity of the sample on the extraction efficiencies were optimized. The OCPs (heptachlor, aldrin, dieldrin, p,p'-DDE and p,p'-DDT) were quantified by gas chromatography with microelectron capture detection. Under optimal conditions, the limit of detections range was between 1.0 and 1.9 ng L −1 . The enrichment factors are between 84.1 and 99.9 %. The sorbent was applied to the rapid extraction of trace quantities of OCPs from seawater samples and gave good relative recoveries (78 to 108 %) and relative standard deviations (<8.3 %).

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“…Many novel analytical methods for concentration and determination of PAHs and OCPs in environmental aqueous samples have been proposed. They have the advantages of high enrichment, simplicity of operation, small amount of solvent used, rapidity, high sensitivity, and low-cost Ke et al, 2013;Shi et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Monitoring of persistent organic pollutants in seawater of the Pearl River Estuary with rapid on-site active SPME sampling technique

Huang

et al. 2015

Environmental Pollution

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Simultaneous analysis of polychlorinated biphenyls and organochlorine pesticides in seawater samples by membrane-assisted solvent extraction combined with gas chromatography–electron capture detector and gas chromatography–tandem mass spectrometry

Cited by 16 publications

References 22 publications

Determination of trace polychlorinated biphenyls and organochlorine pesticides in water samples through large‐volume stir bar sorptive extraction method with thermal desorption gas chromatography

Determination of trace polychlorinated biphenyls and organochlorine pesticides in water samples through large‐volume stir bar sorptive extraction method with thermal desorption gas chromatography

Magnetite nanoparticles surface-modified with a zinc(II)-carboxylate Schiff base ligand as a sorbent for solid-phase extraction of organochlorine pesticides from seawater

Monitoring of persistent organic pollutants in seawater of the Pearl River Estuary with rapid on-site active SPME sampling technique

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