Quantification of sunscreen 2-phenylbenzimidazole-5-sulfonic acid in cosmetic products and water samples by HPTLC/densitometry with fluorescent detection

• Authors: Anna Sobanska , Karolina Derecka , Jaroslaw Pyzowski
• Languages of publication: EN

Abstracts

EN

The water-soluble sunscreen 2-phenylbenzimidazole-5-sulfonic acid (PBS) was quantified in a sun-care product and water samples by thin layer chromatography followed by densitometric scanning in fluorescence mode (cut-off filter 370 nm, wavelength of excitation - 300 nm). Normal phase TLC was performed on silica gel 60 as stationary phase. Mobile phase used was ethyl acetate-ethanol-water 70:35:30 (v/v/v). The limit of detection (LOD) was 0.0004 μg spot-1, and the limit of quantification (LOQ) was - 0.001 µg spot−1 without any sample pre-concentration. [...]

Keywords

EN

Sunscreen; Fluorescence; Thin-layer chromatography; Densitometry

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2013
• Volume: 11
• Issue: 2
• Pages: 133-136

Dates

published

1 - 2 - 2013

online

29 - 11 - 2012

Contributors

author

Anna Sobanska

• Department of Analytical Chemistry, Medical University of Lodz, 90-151, Lodz, Poland

author

Karolina Derecka

• Department of Analytical Chemistry, Medical University of Lodz, 90-151, Lodz, Poland

author

Jaroslaw Pyzowski

• Department of Analytical Chemistry, Medical University of Lodz, 90-151, Lodz, Poland

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Identifiers

DOI

10.2478/s11532-012-0151-x