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Preparation and evaluation of a molecularly imprinted sol-gel material for on-line solid-phase extraction coupled with high performance liquid chromatography for the determination of trace pentachlorophenol in water samples.
J Chromatogr A. 2005 Dec 30; 1100(2):131-6.JC

Abstract

A highly selective imprinted amino-functionalized silica gel sorbent was prepared by combining a surface molecular imprinting technique with a sol-gel process for on-line solid-phase extraction-HPLC determination of trace pentachlorophenol (PCP) in water samples. The PCP-imprinted amino-functionalized silica sorbent was characterized by FT-IR, SEM, nitrogen adsorption and the static adsorption experiments. The imprinted functionalized silica gel sorbent exhibited high selectivity and offered a fast kinetics for the adsorption and desorption of PCP. The prepared sorbent was shown to be promising for on-line solid-phase extraction for HPLC determination of trace levels of PCP in environmental samples. With a sample loading flow rate of 5 ml min(-1) for 2 min, an enhancement factor of 670 and a detection limit (S/N = 3) of 6 ng l(-1) were achieved at a sample throughput of five samples h(-1). The precision (RSD) for nine replicate on-line sorbent extractions of 10 microgl(-1) PCP was 3.8%. The sorbent also offered good linearity (r = 0.9997) for on-line solid-phase extraction of trace levels of PCP. The method was applied to the determination of PCP in local lake water, river water and wastewater samples.

Authors+Show Affiliations

Han DM
Key Laboratory of Functional Polymer Materials, The Ministry of Education of China, Research Centre for Analytical Sciences, Department of Chemistry, Nankai University, Tianjin.
Fang GZ
No affiliation info available
Yan XP
No affiliation info available

MeSH

AdsorptionChemical FractionationChromatography, High Pressure LiquidPentachlorophenolSilica GelSilicon DioxideSpectroscopy, Fourier Transform InfraredWater Pollutants, Chemical

Pub Type(s)

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

Language

eng

PubMed ID

16188266

Citation

Han, De-Man, et al. "Preparation and Evaluation of a Molecularly Imprinted Sol-gel Material for On-line Solid-phase Extraction Coupled With High Performance Liquid Chromatography for the Determination of Trace Pentachlorophenol in Water Samples." Journal of Chromatography. A, vol. 1100, no. 2, 2005, pp. 131-6.
Han DM, Fang GZ, Yan XP. Preparation and evaluation of a molecularly imprinted sol-gel material for on-line solid-phase extraction coupled with high performance liquid chromatography for the determination of trace pentachlorophenol in water samples. J Chromatogr A. 2005;1100(2):131-6.
Han, D. M., Fang, G. Z., & Yan, X. P. (2005). Preparation and evaluation of a molecularly imprinted sol-gel material for on-line solid-phase extraction coupled with high performance liquid chromatography for the determination of trace pentachlorophenol in water samples. Journal of Chromatography. A, 1100(2), 131-6.
Han DM, Fang GZ, Yan XP. Preparation and Evaluation of a Molecularly Imprinted Sol-gel Material for On-line Solid-phase Extraction Coupled With High Performance Liquid Chromatography for the Determination of Trace Pentachlorophenol in Water Samples. J Chromatogr A. 2005 Dec 30;1100(2):131-6. PubMed PMID: 16188266.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Preparation and evaluation of a molecularly imprinted sol-gel material for on-line solid-phase extraction coupled with high performance liquid chromatography for the determination of trace pentachlorophenol in water samples. AU - Han,De-Man, AU - Fang,Guo-Zhen, AU - Yan,Xiu-Ping, Y1 - 2005/09/26/ PY - 2005/07/13/received PY - 2005/08/30/revised PY - 2005/09/14/accepted PY - 2005/9/29/pubmed PY - 2006/2/24/medline PY - 2005/9/29/entrez SP - 131 EP - 6 JF - Journal of chromatography. A JO - J Chromatogr A VL - 1100 IS - 2 N2 - A highly selective imprinted amino-functionalized silica gel sorbent was prepared by combining a surface molecular imprinting technique with a sol-gel process for on-line solid-phase extraction-HPLC determination of trace pentachlorophenol (PCP) in water samples. The PCP-imprinted amino-functionalized silica sorbent was characterized by FT-IR, SEM, nitrogen adsorption and the static adsorption experiments. The imprinted functionalized silica gel sorbent exhibited high selectivity and offered a fast kinetics for the adsorption and desorption of PCP. The prepared sorbent was shown to be promising for on-line solid-phase extraction for HPLC determination of trace levels of PCP in environmental samples. With a sample loading flow rate of 5 ml min(-1) for 2 min, an enhancement factor of 670 and a detection limit (S/N = 3) of 6 ng l(-1) were achieved at a sample throughput of five samples h(-1). The precision (RSD) for nine replicate on-line sorbent extractions of 10 microgl(-1) PCP was 3.8%. The sorbent also offered good linearity (r = 0.9997) for on-line solid-phase extraction of trace levels of PCP. The method was applied to the determination of PCP in local lake water, river water and wastewater samples. SN - 0021-9673 UR - https://www.unboundmedicine.com/medline/citation/16188266/Preparation_and_evaluation_of_a_molecularly_imprinted_sol_gel_material_for_on_line_solid_phase_extraction_coupled_with_high_performance_liquid_chromatography_for_the_determination_of_trace_pentachlorophenol_in_water_samples_ DB - PRIME DP - Unbound Medicine ER -
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