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Rational design of heteropolyacid-based nanosorbent for hollow fiber solid phase microextraction of organophosphorus residues in hair samples.
J Chromatogr A. 2012 Feb 17; 1225:37-44.JC

Abstract

A novel heteropolyacid-based supported ionic liquid (IL) mediated sol-gel hybrid organic-inorganic material is presented for effective use in hollow fiber solid phase microextraction (HF-SPME). We examined a Keggin-based IL that was evaluated in conjunction with sol-gel. This study shows that Keggin-based IL sol-gel generated porous morphology pro effective extraction media. The method was developed for the extraction of the organophosphorus pesticides (OPs); diazinon, fenitrothion and malathion from human hair samples. The OPs were subsequently analyzed with high performance liquid chromatography and photodiode array detection (HPLC-PDA). In the basic condition (pH 10-11), the gel growth process in the presence of IL was initiated. Afterward, this sol was injected into a polypropylene hollow fiber segment for in situ-gelation process. Parameters affecting the efficiency of HF-SPME were thoroughly investigated. Linearity was observed over a range of 0.02-50,000 μg/g and 0.0001-25,000 ng/mL with detection limits between 0.0074-1.3000 μg/g and 0.00034-0.84 ng/mL for the OPs in hair and aqueous matrices, respectively. The relative recoveries in the real samples, for OPs in the storekeeper hair ranged from 86 to 95.2%.

Authors+Show Affiliations

Department of Chemistry, Faculty of Sciences, Birjand University, Birjand, Iran.No 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

22236566

Citation

Ebrahimi, Mahmoud, et al. "Rational Design of Heteropolyacid-based Nanosorbent for Hollow Fiber Solid Phase Microextraction of Organophosphorus Residues in Hair Samples." Journal of Chromatography. A, vol. 1225, 2012, pp. 37-44.
Ebrahimi M, Es'haghi Z, Samadi F, et al. Rational design of heteropolyacid-based nanosorbent for hollow fiber solid phase microextraction of organophosphorus residues in hair samples. J Chromatogr A. 2012;1225:37-44.
Ebrahimi, M., Es'haghi, Z., Samadi, F., Bamoharram, F. F., & Hosseini, M. S. (2012). Rational design of heteropolyacid-based nanosorbent for hollow fiber solid phase microextraction of organophosphorus residues in hair samples. Journal of Chromatography. A, 1225, 37-44. https://doi.org/10.1016/j.chroma.2011.12.077
Ebrahimi M, et al. Rational Design of Heteropolyacid-based Nanosorbent for Hollow Fiber Solid Phase Microextraction of Organophosphorus Residues in Hair Samples. J Chromatogr A. 2012 Feb 17;1225:37-44. PubMed PMID: 22236566.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Rational design of heteropolyacid-based nanosorbent for hollow fiber solid phase microextraction of organophosphorus residues in hair samples. AU - Ebrahimi,Mahmoud, AU - Es'haghi,Zarrin, AU - Samadi,Fatemeh, AU - Bamoharram,Fatemeh Farrash, AU - Hosseini,Mohammad-Saeid, Y1 - 2011/12/30/ PY - 2011/10/22/received PY - 2011/12/22/revised PY - 2011/12/23/accepted PY - 2012/1/13/entrez PY - 2012/1/13/pubmed PY - 2012/4/3/medline SP - 37 EP - 44 JF - Journal of chromatography. A JO - J Chromatogr A VL - 1225 N2 - A novel heteropolyacid-based supported ionic liquid (IL) mediated sol-gel hybrid organic-inorganic material is presented for effective use in hollow fiber solid phase microextraction (HF-SPME). We examined a Keggin-based IL that was evaluated in conjunction with sol-gel. This study shows that Keggin-based IL sol-gel generated porous morphology pro effective extraction media. The method was developed for the extraction of the organophosphorus pesticides (OPs); diazinon, fenitrothion and malathion from human hair samples. The OPs were subsequently analyzed with high performance liquid chromatography and photodiode array detection (HPLC-PDA). In the basic condition (pH 10-11), the gel growth process in the presence of IL was initiated. Afterward, this sol was injected into a polypropylene hollow fiber segment for in situ-gelation process. Parameters affecting the efficiency of HF-SPME were thoroughly investigated. Linearity was observed over a range of 0.02-50,000 μg/g and 0.0001-25,000 ng/mL with detection limits between 0.0074-1.3000 μg/g and 0.00034-0.84 ng/mL for the OPs in hair and aqueous matrices, respectively. The relative recoveries in the real samples, for OPs in the storekeeper hair ranged from 86 to 95.2%. SN - 1873-3778 UR - https://www.unboundmedicine.com/medline/citation/22236566/Rational_design_of_heteropolyacid_based_nanosorbent_for_hollow_fiber_solid_phase_microextraction_of_organophosphorus_residues_in_hair_samples_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9673(11)01897-8 DB - PRIME DP - Unbound Medicine ER -