Methods:The method employed Gas Chromatography,Stationary Phose: Chrosorb W AW DMCS 80-100 mesh coated with 10% DEGS.

• 方法:采用气相色谱法,DEGS为固定相,涂布浓度为10%25,载体为Chromosorb W AW DMCS80-100目的气相柱。