Determination of Phenylenediamine in Oxidative-type Hair Dyes by Capillary Column Gas Chromatography / 环境与健康杂志

ABSTRACT

Objective To establish a method for determination of p-phenylenediamine,m-phenylenediamine,o-phenylenediamine in oxidative-type hair dyes.Methods The samples of oxidatve-type hair dyes were solved by ethyl acetate,then followed by centrifuged,extracted.The extraction was qualitatively and quantitatively analyzed by gas chromatography,the working condition was optimized also.Results The linear range for p-phenylenediamine,m-phenylenediamine,o-phenylenediamine was 25-400 ?g/ml,r=0.999 1-0.999 9,the detection limits were 3.1,3.6,3.4 ?g/ml respectively,the standard recovery rates were 86.8%-104.3%,RSDs were 2.3%-4.5%(n=3).Conclusion This method was simple and rapid,it can be effectively applied in extraction and separation of phenylenediamine in oxidative-type hair dyes.