六氯对二甲苯(a,a,a,a′,a′,a′-hexachl-oro-p-xyline)系芳香族多卤代有机化合物,用此化合物防治寄生虫病,有较好的疗效,国内已开始应用。为了适应临床的需要,有必要研究它的测定方法。多卤代烃如氯仿、三氯乙烯等可利用 Fujiwara 碱吡啶反应进行比色测定等曾用紫外分光光度法测定六氯对二甲苯。Leibman Hexachloro para-xylene (a, a, a ’, a’, a’-hexachl-oro-p-xyline) is an aromatic polyhalogenated organic compound which is useful for the prevention and treatment of parasitic diseases Efficacy, the country has begun to apply. In order to meet the clinical needs, it is necessary to study its determination method. Halogenated hydrocarbons such as chloroform, trichlorethylene, etc. Fujiwara alkali pyridine reaction can be used for colorimetric determination of UV spectrophotometry used hexachloro paraxylene. Leibman