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Determination of organophosphate esters in water samples using an ionic liquid-based sol-gel fiber for headspace solid-phase microextraction coupled to gas chromatography-flame photometric detector.
J Chromatogr A. 2013 Jul 26; 1300:141-50.JC

Abstract

A simple, low-cost and sensitive method for determining organophosphate esters (OPEs) in water samples has been developed based on headspace solid-phase microextraction (SPME) followed by gas chromatography-flame photometric detector. The ionic liquid (1-allyl-3-methylimidazolium tetrafluoroborate, [AMIM][BF4])-based coating was developed by sol-gel technology and employed for extracting analytes. The prepared coating performed stably at high temperatures (up to 335°C) and with a range of solvents. It can be used at least 200 times without an obvious decrease in extraction efficiency. The extraction capability of the new fiber was much higher than polydimethylsiloxane (PDMS), polydimethylsiloxane/divinylbenzene (PDMS/DVB) and polyacrylate (PA) fibers. The experimental parameters that influenced the extraction efficiency, including extraction time, extraction temperature, stirring rate and ionic strength were investigated and optimized. Under the optimal conditions, the method detection limits (S/N=3) were in the range of 0.7-12ngL(-1), and the limits of quantification (S/N=10) were between 1.0 and 28ngL(-1). The repeatability of a single fiber varied from 3.3 to 7.6% (intra-day precision, n=6) and 4.3 to 8.9% (inter-day precision, n=6). The reproducibility of fiber-to-fiber (n=6) was in the range of 3.1-9.4%. The proposed method was applied successfully for the determination of OPEs in lake water, wastewater, sewage treatment plant effluent, and tap water with recoveries varying from 75.2 to 101.8%. The results demonstrate that the proposed method is highly effective for analyzing OPEs in water samples.

Authors+Show Affiliations

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, China.No 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

23541656

Citation

Gao, Zhanqi, et al. "Determination of Organophosphate Esters in Water Samples Using an Ionic Liquid-based Sol-gel Fiber for Headspace Solid-phase Microextraction Coupled to Gas Chromatography-flame Photometric Detector." Journal of Chromatography. A, vol. 1300, 2013, pp. 141-50.
Gao Z, Deng Y, Hu X, et al. Determination of organophosphate esters in water samples using an ionic liquid-based sol-gel fiber for headspace solid-phase microextraction coupled to gas chromatography-flame photometric detector. J Chromatogr A. 2013;1300:141-50.
Gao, Z., Deng, Y., Hu, X., Yang, S., Sun, C., & He, H. (2013). Determination of organophosphate esters in water samples using an ionic liquid-based sol-gel fiber for headspace solid-phase microextraction coupled to gas chromatography-flame photometric detector. Journal of Chromatography. A, 1300, 141-50. https://doi.org/10.1016/j.chroma.2013.02.089
Gao Z, et al. Determination of Organophosphate Esters in Water Samples Using an Ionic Liquid-based Sol-gel Fiber for Headspace Solid-phase Microextraction Coupled to Gas Chromatography-flame Photometric Detector. J Chromatogr A. 2013 Jul 26;1300:141-50. PubMed PMID: 23541656.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Determination of organophosphate esters in water samples using an ionic liquid-based sol-gel fiber for headspace solid-phase microextraction coupled to gas chromatography-flame photometric detector. AU - Gao,Zhanqi, AU - Deng,Yuehua, AU - Hu,Xiaobin, AU - Yang,Shaogui, AU - Sun,Cheng, AU - He,Huan, Y1 - 2013/03/06/ PY - 2012/10/14/received PY - 2013/02/27/revised PY - 2013/02/28/accepted PY - 2013/4/2/entrez PY - 2013/4/2/pubmed PY - 2014/1/22/medline KW - Headspace solid-phase microextraction KW - Ionic liquid KW - Organophosphate esters KW - Sol–gel technology SP - 141 EP - 50 JF - Journal of chromatography. A JO - J Chromatogr A VL - 1300 N2 - A simple, low-cost and sensitive method for determining organophosphate esters (OPEs) in water samples has been developed based on headspace solid-phase microextraction (SPME) followed by gas chromatography-flame photometric detector. The ionic liquid (1-allyl-3-methylimidazolium tetrafluoroborate, [AMIM][BF4])-based coating was developed by sol-gel technology and employed for extracting analytes. The prepared coating performed stably at high temperatures (up to 335°C) and with a range of solvents. It can be used at least 200 times without an obvious decrease in extraction efficiency. The extraction capability of the new fiber was much higher than polydimethylsiloxane (PDMS), polydimethylsiloxane/divinylbenzene (PDMS/DVB) and polyacrylate (PA) fibers. The experimental parameters that influenced the extraction efficiency, including extraction time, extraction temperature, stirring rate and ionic strength were investigated and optimized. Under the optimal conditions, the method detection limits (S/N=3) were in the range of 0.7-12ngL(-1), and the limits of quantification (S/N=10) were between 1.0 and 28ngL(-1). The repeatability of a single fiber varied from 3.3 to 7.6% (intra-day precision, n=6) and 4.3 to 8.9% (inter-day precision, n=6). The reproducibility of fiber-to-fiber (n=6) was in the range of 3.1-9.4%. The proposed method was applied successfully for the determination of OPEs in lake water, wastewater, sewage treatment plant effluent, and tap water with recoveries varying from 75.2 to 101.8%. The results demonstrate that the proposed method is highly effective for analyzing OPEs in water samples. SN - 1873-3778 UR - https://www.unboundmedicine.com/medline/citation/23541656/Determination_of_organophosphate_esters_in_water_samples_using_an_ionic_liquid_based_sol_gel_fiber_for_headspace_solid_phase_microextraction_coupled_to_gas_chromatography_flame_photometric_detector_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9673(13)00407-X DB - PRIME DP - Unbound Medicine ER -