[Determination of methanol in hair spray by GC method]

This report improved the chromatographic conditions of present standard method for testing methanol in hair spray GB7917.4-87. To avoid error detection on peak overlapping between methanol and dimethyl ether of original standard method, this method used column GDX-102 packed with 25% polyglycol 1540. The recoveries were in the range of 90.4%-107.0%, and the relative standard deviation was between 1.8% and 5.2%.