一、前言六六六丙体含量的测定方法已知的有分配色层法、极谱法、红外线光度法、同位素稀释法、分级结晶法、综合色散光谱法、凝固点下降法、动力学法、生物学法等。工业六六六原粉丙体测定的国家标准是色层法与极谱法,对丙体含量90～100%的六六六,国内目前尚无标准方法。用极谱法误差较大不能满足需要,而色层法所耗药品较贵(每个样品约需10元),分析时间长(约8小时)、步骤多、操作技术不易掌握、准确 I. Preface The determination of hexachlorohexaprolactone content is known as the distribution of chromatography, polarography, infrared spectrophotometry, isotope dilution method, fractional crystallization, synthetic dispersive spectrometry, freezing point descent method, kinetic method, Biological law and so on. The national standard for the determination of hexagonal hexacycle hexahydrate in industry is chromatographic method and polarographic method. There is no standard method for the content of C and B in China, which is 90-100% of the content of hexamer. Polarographic error with the larger can not meet the needs, while the chromatography method is more expensive drugs (each sample takes about 10 yuan), the analysis of a long time (about 8 hours), more steps, operating techniques are not easy to grasp, accurate