Determination of Dyclonine Hydrochloride and Other 22 Kinds of Components in Cosmetics (Draft)

This method outlines the technical requirements for the qualitative screening and quantitative determination of 23 ingredients in cosmetics by means of high performance liquid chromatography-tandem mass spectrometry. It is applicable to aqueous liquids, creams, emulsions, gels, oil-based liquids, and powder cosmetics. Compared with the existing method in Safety and Technical Standards for Cosmetics, this new method expands the scope of ingredients tested from 7 to 23, and has been optimized to also apply to powder formulations.