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Updated: Jul 17, 2026

A Simple Fractionated Extraction Method for the Comprehensive Analysis of Metabolites, Lipids, and Proteins from a Single Sample
Published on: June 1, 2017
Micellar solid-phase microextraction for determining partition coefficients of substituted polycyclic aromatic
Verónica Pino1, Ana M Afonso, Juan H Ayala
1Department of Analytical Chemistry, Nutrition and Food Science, University of La Laguna, Campus de Anchieta, Astrofísico Francisco Sánchez s/n, 38205, La Laguna, Spain. veropino@ull.es
Abstract:
Micellar solid-phase microextraction (MSPME) coupled to gas chromatography-mass spectrometry (GC-MS) has been used to obtain partition coefficients of a group of 18 substituted aromatic hydrocarbons to ionic and nonionic micelles. Statistical and factor analyses have been utilized to establish some general equations relating molecular descriptors of non-substituted polycyclic aromatic hydrocarbons and their partition coefficients obtained by MSPME. The obtained equations have correlation coefficients higher than 0.94. They are used to predict hydrocarbon-micelle partition coefficients for a group of hydrocarbons with reported literature values giving a correlation coefficient of 0.98 and a standard deviation of the prediction of 0.182. The predictive model was also applied to substituted polycyclic aromatic hydrocarbons with partition coefficient values obtained by MSPME, with a 69% level of success.
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