T/GDCA 057-2025 Determination of Glycyrrhetinic Acid and Glycyrrhizic Acid in Licorice Extracts as Ingredients in Cosmetics by High-Performance Liquid Chromatography (HPLC)
T/GDCA 057-2025 Determination of Glycyrrhetinic Acid and Glycyrrhizic Acid in Licorice Extracts as Ingredients in Cosmetics by High-Performance Liquid Chromatography (HPLC)
Basic Information
Scope
Scope: This document specifies the method summary, reagents and materials, instruments and equipment, experimental methods, and requirements for the presentation of analysis results for the determination of glycyrrhizin and glycyrrhizic acid in licorice extract, a cosmetic raw material, by high-performance liquid chromatography (HPLC). This document is applicable to the determination of glycyrrhizin and glycyrrhizic acid in licorice extract used in cosmetics. Main technical content: 1. Scope 2. Normative reference documents 3. Terms and definitions 4. Method summary 5. Reagents and materials 6. Instruments and equipment 7. Experimental methods 8. Presentation of analysis results Appendix A (informative) Information on standard substances Appendix B (informative) HPLC chromatograms of standard substances for glycyrrhizin and glycyrrhizic acid