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Analysis of chloro- and nitrobenzenes in water by a simple polyaniline-based solid-phase microextraction coupled with gas chromatography.
J Chromatogr A. 2007 Jan 26; 1140(1-2):21-8.JC

Abstract

A simple solid-phase microextraction (SPME) device, coupled with gas chromatography-electron capture detection (GC-ECD) was developed to detect trace levels of chloro- and nitrobenzene compounds in environmental water samples. Polyaniline (PANI) was chosen as the extraction material for the SPME device, and was electrochemically deposited on a stainless steel wire to achieve high mechanical stability. Due to the peculiar pi-pi conjugated structure, PANI coating shows a stable performance in high temperature (to 350 degrees C) and solvents (organic and inorganic). The porous structure of PANI film characterized by scanning electron microscopy (SEM) revealed high extraction efficiency. The possible extraction mechanism was explained by the study carried out using electrochemical impedance spectroscopy (EIS). Eight chloro- and nitrobenzene compounds were selected to evaluate the SPME-GC procedures. The key parameters such as extraction and desorption temperature and time, and the ionic strength were investigated and optimized. The method was applied to the detection of environmental water samples collected from Taihu Lake, representing nowadays contamination level under industrial impact. The whole PANI-SPME-GC method offers high accuracy and precision, high sensitivity and low detection limits. Thus, the method developed could be used as a new way to monitor the trace levels of chloro- and nitrobenzene compounds in real water bodies.

Authors+Show Affiliations

Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China.No affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17140587

Citation

Li, Xiang, et al. "Analysis of Chloro- and Nitrobenzenes in Water By a Simple Polyaniline-based Solid-phase Microextraction Coupled With Gas Chromatography." Journal of Chromatography. A, vol. 1140, no. 1-2, 2007, pp. 21-8.
Li X, Chen J, Du L. Analysis of chloro- and nitrobenzenes in water by a simple polyaniline-based solid-phase microextraction coupled with gas chromatography. J Chromatogr A. 2007;1140(1-2):21-8.
Li, X., Chen, J., & Du, L. (2007). Analysis of chloro- and nitrobenzenes in water by a simple polyaniline-based solid-phase microextraction coupled with gas chromatography. Journal of Chromatography. A, 1140(1-2), 21-8.
Li X, Chen J, Du L. Analysis of Chloro- and Nitrobenzenes in Water By a Simple Polyaniline-based Solid-phase Microextraction Coupled With Gas Chromatography. J Chromatogr A. 2007 Jan 26;1140(1-2):21-8. PubMed PMID: 17140587.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Analysis of chloro- and nitrobenzenes in water by a simple polyaniline-based solid-phase microextraction coupled with gas chromatography. AU - Li,Xiang, AU - Chen,Jianmin, AU - Du,Lichun, Y1 - 2006/11/30/ PY - 2006/09/28/received PY - 2006/11/09/revised PY - 2006/11/14/accepted PY - 2006/12/5/pubmed PY - 2007/3/24/medline PY - 2006/12/5/entrez SP - 21 EP - 8 JF - Journal of chromatography. A JO - J Chromatogr A VL - 1140 IS - 1-2 N2 - A simple solid-phase microextraction (SPME) device, coupled with gas chromatography-electron capture detection (GC-ECD) was developed to detect trace levels of chloro- and nitrobenzene compounds in environmental water samples. Polyaniline (PANI) was chosen as the extraction material for the SPME device, and was electrochemically deposited on a stainless steel wire to achieve high mechanical stability. Due to the peculiar pi-pi conjugated structure, PANI coating shows a stable performance in high temperature (to 350 degrees C) and solvents (organic and inorganic). The porous structure of PANI film characterized by scanning electron microscopy (SEM) revealed high extraction efficiency. The possible extraction mechanism was explained by the study carried out using electrochemical impedance spectroscopy (EIS). Eight chloro- and nitrobenzene compounds were selected to evaluate the SPME-GC procedures. The key parameters such as extraction and desorption temperature and time, and the ionic strength were investigated and optimized. The method was applied to the detection of environmental water samples collected from Taihu Lake, representing nowadays contamination level under industrial impact. The whole PANI-SPME-GC method offers high accuracy and precision, high sensitivity and low detection limits. Thus, the method developed could be used as a new way to monitor the trace levels of chloro- and nitrobenzene compounds in real water bodies. SN - 0021-9673 UR - https://www.unboundmedicine.com/medline/citation/17140587/Analysis_of_chloro__and_nitrobenzenes_in_water_by_a_simple_polyaniline_based_solid_phase_microextraction_coupled_with_gas_chromatography_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9673(06)02170-4 DB - PRIME DP - Unbound Medicine ER -