Issue 12, 2011
From the journal:

Analytical Methods

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

Zhenli Deng,a   Lijuan Han,a   Jing Zhanga  and  Yiwei Wu*ab  

* Corresponding authors

a Department of Chemistry and Environmental Engineering, Hubei Key Laboratory of Pollutant Analysis and Reuse Technique, Hubei Normal University, Huangshi, P.R. China
E-mail: chemwuyiwei@tom.com

b Key Laboratory of Analytical Chemistry for Biology and Medicine (Wuhan University), Ministry of Education, P.R. China

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

DOI
https://doi.org/10.1039/C1AY05349C
Article type
Paper
Submitted
15 Jun 2011
Accepted
08 Sep 2011
First published
18 Oct 2011

Anal. Methods, 2011,3, 2848-2853

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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

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

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