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４，４二苯甲烷二异氰酸酯（ＭＤＩ）是生产聚合尿烷泡沫塑料和涂料的主要原料之一，其较低的蒸汽压对接触工人可造成健康危害，现行卫生标准为０２ｍｇ／ｍ３。国内目前对ＭＤＩ的检测还没有国家标准方法。本研究采用先进的ＨＰＬＣ测试手段在国内率先建立了测定空气中Ｍ
4,4-Diphenylmethane diisocyanate (MDI) is one of the main raw materials for the production of polymeric urethane foam and coatings. Its lower vapor pressure can cause health hazards to exposed workers. The current hygiene standard is 0.2 mg / m3 . At present, there is no national standard method for testing MDI in China. In this study, using advanced HPLC test means the first established in the country to determine the air M