, Volume 64, Issue 9–10, pp 509–515 | Cite as

Simple Extraction and HPLC Determination of UV-A and UV-B Filters in Sunscreen Products

  • D. De Orsi
  • G. Giannini
  • L. Gagliardi
  • R. Porrà
  • S. Berri
  • A. Bolasco
  • I. Carpani
  • D. TonelliEmail author


The determination of 11 organic UV filters, worldwide authorised in sunscreen formulations, was performed by HPLC with UV spectrophotometric detection. The filters determined were: phenylbenzimidazole sulfonic acid, benzophenone-4, benzophenone-3, 4-methylbenzylidene camphor, ethylhexyl methoxycinnamate, octocrylene, methylene bis-benzotriazolyl tetramethylbutyl phenol, butyl methoxydibenzoylmethane, bis-ethylhexyloxyphenol methoxyphenyltriazine, ethylhexyl triazone, and diethylamino hydroxybenzoyl hexyl benzoate. Three analytical methods were developed which were based on an ultrasonic extraction of the sample in methanol/1% aqueous acetic acid (70:30, v/v) or dimethylacetamide/propan-2-ol (1:1, v/v) in dependence of the water or fat-solubility of the filter, followed by HPLC separation and quantitation. HPLC was carried out using three different columns and eluting conditions. Standard calibration curves were linear for all the analytes over the concentration range 0.5–100 μg mL−1. UV measurements were carried out at 280, 300, 310 or 360 nm with the aid of a diode array detector in dependence on the maximum absorption of each filter. Quantitative recoveries were obtained for all sunscreen compounds determined in homemade formulations. The proposed analytical procedure has been successfully applied for the analysis of commercial samples in order to check the presence of UV filters and to determine their concentration.


Column liquid chromatography Quality control UV filters in cosmetic products Sunscreen products 



The Authors wish to thank Mr Gianluigi Pinci from Istituto Superiore di Sanità for his helpful support in computer science.


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Copyright information

© Friedr. Vieweg & Sohn Verlag/GWV Fachverlage GmbH 2006

Authors and Affiliations

  • D. De Orsi
    • 1
  • G. Giannini
    • 1
  • L. Gagliardi
    • 1
  • R. Porrà
    • 1
  • S. Berri
    • 1
  • A. Bolasco
    • 2
  • I. Carpani
    • 3
  • D. Tonelli
    • 3
    Email author
  1. 1.Dipartimento del FarmacoIstituto Superiore di SanitàRomeItaly
  2. 2.Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente AttiveUniversità di Roma 1RomeItaly
  3. 3.Dipartimento di Chimica Fisica ed InorganicaBolognaItaly

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