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Fabric Sol–gel Phase Sorptive Extraction Technique: A Review
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Separations 2017, 4(2), 21; doi:10.3390/separations4020021

Fabric Phase Sorptive Extraction Explained

International Forensic Research Institute, Department of Chemistry and Biochemistry, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA
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Academic Editor: Victoria F. Samanidou
Received: 17 January 2017 / Revised: 4 May 2017 / Accepted: 12 May 2017 / Published: 2 June 2017
(This article belongs to the Special Issue Trends in Microextraction Techniques for Sample Preparation)
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Abstract

The theory and working principle of fabric phase sorptive extraction (FPSE) is presented. FPSE innovatively integrates the benefits of sol–gel coating technology and the rich surface chemistry of cellulose/polyester/fiberglass fabrics, resulting in a microextraction device with very high sorbent loading in the form of an ultra-thin coating. This porous sorbent coating and the permeable substrate synergistically facilitate fast extraction equilibrium. The flexibility of the FPSE device allows its direct insertion into original, unmodified samples of different origin. Strong chemical bonding between the sol–gel sorbent and the fabric substrate permits the exposure of FPSE devices to any organic solvent for analyte back-extraction/elution. As a representative sorbent, sol–gel poly(ethylene glycol) coating was generated on cellulose substrates. Five (cm2) segments of these coated fabrics were used as the FPSE devices for sample preparation using direct immersion mode. An important class of environmental pollutants—substituted phenols—was used as model compounds to evaluate the extraction performance of FPSE. The high primary contact surface area (PCSA) of the FPSE device and porous structure of the sol–gel coatings resulted in very high sample capacities and incredible extraction sensitivities in a relatively short period of time. Different extraction parameters were evaluated and optimized. The new extraction devices demonstrated part per trillion level detection limits for substitute phenols, a wide range of detection linearity, and good performance reproducibility. View Full-Text
Keywords: fabric phase sorptive extraction (FPSE); sol–gel; phenols; environmental pollution; sample preparation; microextraction; green analytical chemistry (GAC) fabric phase sorptive extraction (FPSE); sol–gel; phenols; environmental pollution; sample preparation; microextraction; green analytical chemistry (GAC)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Kabir, A.; Mesa, R.; Jurmain, J.; Furton, K.G. Fabric Phase Sorptive Extraction Explained. Separations 2017, 4, 21.

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Separations EISSN 2297-8739 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
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