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Issue 12, 2011
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Analysis of benzophenones in environmental water samples after topical skin application using dispersive liquid–liquid microextraction and micellar electrokinetic capillary chromatography

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Abstract

Dispersive liquid–liquid microextraction (DLLME) was developed for MEKC determination of 2,4-dihydroxy-benzophenone (HBP) and 2-hydroxy-4-methoxy-benzophenone (HMBP) in environmental water samples after topical skin application. Parameters affecting the extraction efficiency were investigated in detail. Under the optimum conditions, enrichment factors (EFs) of 208.9 for HBP and 194.6 fold for HMBP were obtained. The detection limits are 0.52 μmol L−1HBP and 0.29 μmol L−1HMBP, and the precisions for eight replicate measurements of 5.0 μmol L−1 of HBP and HMBP are 4.9% and 1.5%, respectively. Environmental water samples after topical skin application were successfully analyzed by the proposed method with satisfactory results.

Graphical abstract: Analysis of benzophenones in environmental water samples after topical skin application using dispersive liquid–liquid microextraction and micellar electrokinetic capillary chromatography

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Article information


Submitted
15 Jun 2011
Accepted
08 Sep 2011
First published
18 Oct 2011

Anal. Methods, 2011,3, 2848-2853
Article type
Paper

Analysis of benzophenones in environmental water samples after topical skin application using dispersive liquid–liquid microextraction and micellar electrokinetic capillary chromatography

Z. Deng, L. Han, J. Zhang and Y. Wu, Anal. Methods, 2011, 3, 2848
DOI: 10.1039/C1AY05349C

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