苯、甲苯、二甲苯的测定主要使用气相色谱法[1] ,临床上 ,苯的毒性远比甲苯、二甲苯的毒性大。在对制鞋业进行卫生监测时 ,发现工厂仍大量使用以苯为主要溶剂的鞋胶 ,致使车间空气中苯浓度大大超过国家卫生标准 ,造成大量作业工人苯中毒 ,故应对鞋胶中苯含量进行测定 ,以限制高 Benzene, toluene, xylene determination mainly used gas chromatography [1], clinically, benzene toxicity than toluene, xylene toxicity. Health monitoring in the footwear industry found that the factory is still using large quantities of benzene as the main solvent shoe glue, resulting in benzene concentration in the workshop air greatly exceeded the national health standards, resulting in a large number of workers benzene poisoning, so deal with shoe gum benzene content Make determinations to limit the height