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  • Title: [Determination of sexual hormones in cosmetics by using Re-HPLC method].
    Author: Wang J, Hu J, Feng C.
    Journal: Wei Sheng Yan Jiu; 1999 Jan 30; 28(1):35-6. PubMed ID: 12712745.
    Abstract:
    A Re-HPLC method for the determination of seven kinds of sexual hormones, such as estriol in cosmetics was established. Zorbax C18 and Methanol-water were used as solid phase and liquid phase respectively. Methanol was used to extract the hormones in samples using a ultrasonic method. In the background with cosmetic samples, the relative standard deviations of those seven kinds of added sexual hormones were 1.2%-4.4% at low concentration and 2.1%-5.8% at high concentration. The recoveries rates of those hormones were 87.7%-103.1% and 86.6%-104.4%, respectively.
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