The molecules of octadecylamine can form a protective film on the surface of metal matirials

so it is commonly used for shutdown boiler's conservation in power plants.In practical application

the said medicament is usually an emulsion of water and octadecylamine

and the content and purity of said medicament should be detected

and a method for detecting the content and purity of octadecylamine medicament by using the gas chromatography has been put forward.Test shows that the adoptation of gas chromatography to detect the emulsion of octadecylamine

not only the content of octadecylamine in the emulsion can be rapidly detected

the other organic impurities can also rapidly be detected.The relative standard deviation of the said method is 3.84%

the recovery rate being 95.3%.The linearity of standard curves obtained in tests is good

the correlation coefficient being 0.9997.