NDLI: A novel dispersive micro-solid phase extraction method combined with gas chromatography for analysis of organochlorine pesticides in aqueous samples

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A novel dispersive micro-solid phase extraction method combined with gas chromatography for analysis of organochlorine pesticides in aqueous samples

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A novel dispersive micro-solid phase extraction method combined with gas chromatography for analysis of organochlorine pesticides in aqueous samples

Content Provider	Royal Society of Chemistry (RSC)
Author	Wu, Min Zhou, Hongbin Cheng, Jing Jiang, Xilan Wu, Wenlin Cheng, Min
Copyright Year	2014
Abstract	A novel dispersive micro-solid phase extraction (D-μ-SPE) method is presented in this paper. The most attractive feature of this method is taking full advantage of a plastic dropper and nanoscale one-dimensional polyaniline (1D-PANI). The plastic dropper was employed as both the extraction and preconcentration device. All procedures needed in the common μ-SPE were performed in a plastic dropper without any additional devices, such as a centrifuge, magnetic field and pressure blowing concentrator. So the operating steps were simplified greatly. 1D-PANIs were used as the sorbent. The huge surface and interconnected network structure of 1D-PANIs endows them with high dispersive adsorbability and good permeability for the adsorbed analytes to be eluted. To test the feasibility of the proposed method, eight organochlorine pesticides (OCPs) were selected as the model analytes for D-μ-SPE of OCPs in water samples. A series of extraction parameters have been investigated systematically. Under optimized conditions, the method showed that the linear correlation coefficients (r) were better than 0.9971 and the limits of detection (LODs) for eight OCPs ranged from 0.0121 to 0.0468 μg L−1. The intra- and inter-day relative standard deviations (RSDs) were less than 11.9%. The recoveries of OCPs for three spiked aqueous samples ranged from 73.6 to 107.0%. The novel D-μ-SPE is promising to be an alternative sample preparation method for extracting apolar analytes in complex sample matrices because of its simplicity, low cost and high extraction efficiency.
Starting Page	9712
Ending Page	9717
Page Count	6
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	6
Issue Number	24
Journal	Analytical Methods
DOI	10.1039/c4ay02302a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Organochloride Adsorption Permeation Polyaniline Magnetic field
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

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A novel dispersive micro-solid phase extraction method combined with gas chromatography for analysis of organochlorine pesticides in aqueous samples

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A novel dispersive micro-solid phase extraction method combined with gas chromatography for analysis of organochlorine pesticides in aqueous samples

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