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Nano-structured polyaniline-ionic liquid composite film coated steel wire for headspace solid-phase microextraction of organochlorine pesticides in water.
J Chromatogr A. 2011 Sep 16; 1218(37):6285-91.JC

Abstract

A novel nano-structured polyaniline-ionic liquid (i.e. 1-butyl-3-methylimidazolium hexafluorophosphate, BMIPF(6)) composite (BPAN) film coated steel wire was prepared by electrochemical deposition. Scanning electron microscopy images showed that the obtained porous BPAN coating consisted of nanofibers, whose diameter ranged from 50 to 80 nm. Furthermore, the novel nano-structured composite coating was very stable at relatively high temperatures (up to 350 °C) and it could be used for more 250 times without obvious decrease of the extraction efficiency. The novel BPAN coating was used for the headspace solid-phase microextraction (HS-SPME) of organochlorine pesticides (i.e. hexachlorocyolohexane, dichlorodiphenyldichloroethylene, dichlorodiphenyldichloroethane, dichlorodiphenyltrichloroethane), coupled with gas chromatography-electron capture detection (GC-ECD). The BPAN coating showed better analytical capability on the whole compared with common polyaniline (PANI) and polydimethylsiloxane (PDMS) coatings. The key parameters influencing extraction efficiency were investigated and optimized, including desorption time, stirring speed, extraction temperature, extraction time and ionic strength. The relative standard deviations (RSDs) for single fiber repeatability ranged from 2.3 to 8.7% (n=6) and the RSDs for fiber-to-fiber reproducibility (n=6) were 4.2-12.1%, respectively. The linear ranges exceeded three magnitudes with correlation coefficients above 0.99. The detection limits were 0.12-0.31 ng L(-1). The proposed method was successfully applied for the determination of organochlorine pesticides in lake water, waste water and sewage treatment plant effluent with good recoveries from 88.9 to 112.9%.

Authors+Show Affiliations

The State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China. gaozhanqi2005@163.comNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

21821255

Citation

Gao, Zhanqi, et al. "Nano-structured Polyaniline-ionic Liquid Composite Film Coated Steel Wire for Headspace Solid-phase Microextraction of Organochlorine Pesticides in Water." Journal of Chromatography. A, vol. 1218, no. 37, 2011, pp. 6285-91.
Gao Z, Li W, Liu B, et al. Nano-structured polyaniline-ionic liquid composite film coated steel wire for headspace solid-phase microextraction of organochlorine pesticides in water. J Chromatogr A. 2011;1218(37):6285-91.
Gao, Z., Li, W., Liu, B., Liang, F., He, H., Yang, S., & Sun, C. (2011). Nano-structured polyaniline-ionic liquid composite film coated steel wire for headspace solid-phase microextraction of organochlorine pesticides in water. Journal of Chromatography. A, 1218(37), 6285-91. https://doi.org/10.1016/j.chroma.2011.07.041
Gao Z, et al. Nano-structured Polyaniline-ionic Liquid Composite Film Coated Steel Wire for Headspace Solid-phase Microextraction of Organochlorine Pesticides in Water. J Chromatogr A. 2011 Sep 16;1218(37):6285-91. PubMed PMID: 21821255.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Nano-structured polyaniline-ionic liquid composite film coated steel wire for headspace solid-phase microextraction of organochlorine pesticides in water. AU - Gao,Zhanqi, AU - Li,Wenchao, AU - Liu,Benzhi, AU - Liang,Feng, AU - He,Huan, AU - Yang,Shaogui, AU - Sun,Cheng, Y1 - 2011/07/22/ PY - 2011/06/14/received PY - 2011/07/12/accepted PY - 2011/8/9/entrez PY - 2011/8/9/pubmed PY - 2011/10/25/medline SP - 6285 EP - 91 JF - Journal of chromatography. A JO - J Chromatogr A VL - 1218 IS - 37 N2 - A novel nano-structured polyaniline-ionic liquid (i.e. 1-butyl-3-methylimidazolium hexafluorophosphate, BMIPF(6)) composite (BPAN) film coated steel wire was prepared by electrochemical deposition. Scanning electron microscopy images showed that the obtained porous BPAN coating consisted of nanofibers, whose diameter ranged from 50 to 80 nm. Furthermore, the novel nano-structured composite coating was very stable at relatively high temperatures (up to 350 °C) and it could be used for more 250 times without obvious decrease of the extraction efficiency. The novel BPAN coating was used for the headspace solid-phase microextraction (HS-SPME) of organochlorine pesticides (i.e. hexachlorocyolohexane, dichlorodiphenyldichloroethylene, dichlorodiphenyldichloroethane, dichlorodiphenyltrichloroethane), coupled with gas chromatography-electron capture detection (GC-ECD). The BPAN coating showed better analytical capability on the whole compared with common polyaniline (PANI) and polydimethylsiloxane (PDMS) coatings. The key parameters influencing extraction efficiency were investigated and optimized, including desorption time, stirring speed, extraction temperature, extraction time and ionic strength. The relative standard deviations (RSDs) for single fiber repeatability ranged from 2.3 to 8.7% (n=6) and the RSDs for fiber-to-fiber reproducibility (n=6) were 4.2-12.1%, respectively. The linear ranges exceeded three magnitudes with correlation coefficients above 0.99. The detection limits were 0.12-0.31 ng L(-1). The proposed method was successfully applied for the determination of organochlorine pesticides in lake water, waste water and sewage treatment plant effluent with good recoveries from 88.9 to 112.9%. SN - 1873-3778 UR - https://www.unboundmedicine.com/medline/citation/21821255/Nano_structured_polyaniline_ionic_liquid_composite_film_coated_steel_wire_for_headspace_solid_phase_microextraction_of_organochlorine_pesticides_in_water_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9673(11)01051-X DB - PRIME DP - Unbound Medicine ER -