This method stipulates the determination of the content of p-Phenylenediamine and other 31 kinds of components in cosmetics by high performance liquid chromatography. This method applies to the determination of the content of p-Phenylenediamine and other 31 kinds of components in hair dye cosmetics.
This method consists of 10 parts as listed below:
Reagents and Materials
Instruments and Equipment
Expression of Analysis Results
Annex A: Separation and Interference of 31 Components under Liquid Phase Condition 2
Annex B: Confirmation of Positive Results of 31 Components Such as p-Phenylenediamine
Annex C: Physical and Chemical Parameters of Each Component