Solid phase microextraction procedure for the determination of alkylphenols in water by on-fiber derivatization with N-tert-butyl-dimethylsilyl-N-methyltrifluoroacetamide

Analytica Chimica Acta
Yi-Ping Pan, Shih-Wei Tsai

Abstract

The solid phase microextraction (SPME) technique with on-fiber derivatization was evaluated for the analysis of alkylphenols (APs), including 4-tert-octylphenol (4-t-OP), technical nonylphenol isomers (t-NPs) and 4-nonylphenol (4-NP), in water. The 85 microm polyacrylate (PA) fiber was used and a two-step sample preparation procedure was established. In the first step, water sample of 2 mL was placed in a 4 mL PTFE-capped glass vial. Headspace extraction of APs in water was then performed under 65 degrees C for 30 min with 800 rpm magnetic stirring and the addition of 5% of sodium chloride. In the second step, the SPME fiber was placed in another 4 mL vial, which contained 100 microL of N-tert-butyl-dimethylsilyl-N-methyltrifluoroacetamide (MTBSTFA) with 1% tert-butyl-dimethylchlorosilane (TBDMCS). Headspace extraction of MTBSTFA and on-fiber derivatization with APs were performed at 45 degrees C for 10 min. Gas chromatography/mass spectrometry (GC/MS) was used for the analysis of derivatives formed on-fiber. The adsorption-time profiles were also examined. The precision, accuracy and method detection limits (MDLs) for the analysis of all the APs were evaluated with spiked water samples, including detergent water, chlorinated t...Continue Reading

References

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Mar 21, 2001·Journal of the Air & Waste Management Association·J A Koziel, J Pawliszyn
Dec 13, 2005·Journal of Chromatography. a·Christian DietzCarmen Cámara

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Citations

Jun 21, 2011·Environmental Monitoring and Assessment·Ioana CruceruLuminita Vladescu
Nov 10, 2011·Environmental Monitoring and Assessment·Ioana CruceruLuminita Vladescu
Jul 13, 2011·Chemical Reviews·Ewa OlkowskaJacek Namieśnik
Oct 1, 2021·Environmental Science and Pollution Research International·Suaibu O BadmusTawfik A Saleh

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