Measurement of the free concentration of octylphenol in biological samples with negligible depletion-solid phase microextraction (nd-SPME): analysis of matrix effects

Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Minne B HeringaJ L Hermens

Abstract

A negligible depletion-solid phase microextraction (nd-SPME) method is presented to measure free concentrations of octylphenol in biological samples. Potential confounding factors, such as matrix effects, are studied as well. Fouling of the fibre appears to occur, but it does not seem to reduce or enhance the measured uptake of octylphenol. In the setup applied here, without any agitation, it has also been found that there is a large effect of protein presence on the kinetics of octylphenol uptake. In addition, an apparent affinity constant of octylphenol for bovine serum albumin was determined.

Citations

Aug 11, 2011·Bioanalysis·Florin Marcel Musteata
Oct 7, 2008·Journal of Pharmaceutical and Biomedical Analysis·Dajana Vuckovic, Janusz Pawliszyn
Sep 15, 2015·Analytical Chemistry·Md Nazmul AlamJanusz Pawliszyn
Aug 28, 2015·Journal of Pharmaceutical and Biomedical Analysis·Hester PeltenburgJoop L M Hermens
Nov 11, 2011·Chemical Research in Toxicology·Satoshi Endo, Kai-Uwe Goss
Sep 20, 2012·Langmuir : the ACS Journal of Surfaces and Colloids·Katarzyna ZielińskaRaewyn M Town

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