由于苯是严重的造血系统毒物,因此目前已采取很多低毒的代用品取代苯。二甲苯就是常用的一种代用品,多用于喷烘漆作业,二甲苯的毒性研究资料不多,对造血系统的作用说法也不一。近来发现甲基马尿酸是二甲苯进入人体以后的特异性代谢产物,并在二甲苯作业工人的尿中分离出甲基马尿酸,提出了定量测定方法,其测定结果可 Because benzene is a serious hematopoietic toxicant, so many low toxicity substitutes have been used to replace benzene. Xylene is commonly used as a surrogate. It is mostly used for spray baking operations. There is not much information on the toxicity of xylene and its effect on the hematopoietic system. Recently found that hippocampus hippocampus xylene into the body after the specific metabolites, and workers in the xylene xylene hippuric acid isolated, put forward a quantitative determination of the determination of the results can be