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China Surfactant Detergent & Cosmetics ›› 2020, Vol. 50 ›› Issue (3): 204-207.doi: 10.3969/j.issn.1001-1803.2020.03.012

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Determination of coumarins in cosmetics by high performance liquid chromatography

Guo-qing LIU1,Jing LI2,Jian-guo XU1,Yan-wen LV1,Xiang-jun PAN1,Yun-yuan DONG1   

  1. 1. College of Chemical and Material Engineering, Quzhou University, Quzhou, Zhejiang 324000, China
    2. Department of Chemical & Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China;
  • Received:2019-12-25 Revised:2020-03-06 Online:2020-03-22 Published:2020-04-02

Abstract:

A high performance liquid chromatographic (HPLC) method was developed for the simultaneous determination of 8 coumarin compounds in cosmetics, including 8-hydroxypsoralen, psoralen, isopsoralen, 8-methoxypsoralen, 5-methoxypsoralen, trioxsalen, imperatorin and isoimperatorin. The samples were extracted by supercritical CO2 extraction with methanol as carrier cosolvent. Chromatographic separation was achieved on an Agilent ZORBAX Eclipse Plus C18 chromatographic column (250 mm×4.6 mm×5 μm, column temperature 25 ℃) through gradient elution with acetonitrile-water as binary mobile phase at a flow rate of 1.0 mL/min, and the detection wavelength was 250 nm. The external standard method was used for quantification. The results showed that the linear correlation coefficients of the 8 compounds were all greater than 0.999; the average recoveries at three spiked levels were in the range of 85.1%-110.0% with RSDs (n=6) lower than 6.42%. This method was proved to be simple, efficient and accurate, which provided an effective detection technique for coumarin compounds in cosmetics.

Key words: cosmetics, coumarin compounds, high performance liquid chromatography, supercritical CO2 extraction

CLC Number: 

  • TQ658