【摘要】 目的　比较二氧化氯消毒剂的两种含量测定方法 ,为二氧化氯含量测定方法的标准化提供参考。　方法　采用丙二酸 -碘量法和五步碘量法。　结果　两种试验方法测定的结果差别很大 ,pH值越低 ,两种方法测定的结果越接近。且方法的精密度也不同 ,两种方法的相对标准偏差分别为 0 .0 9996%～ 0 .2 5 0 3 %和 0 .73 3 6%～ 14 .80 %。　结论　作为消毒剂中二氧化氯含量测定的标准方法 ,这两种方法都还有待于进一步完善。更多还原

【Abstract】 Objective To compare the two methods for measurement of chlorine dioxide content in disinfectant, and to offer a reference for determination method standardizing of chlorine dioxide content Method Malonic acid-iodimetry and five steps iodimetry were used. Result The results from the two methods showed an obvious difference. The lower the pH value, the more similar the results from the two kinds of methods. And the method precision is different too. Their relative standard deviation are 0.09996%～0. 2503% and 0.7336%～14. 80% respectively. Conclusion As a standard method to determine chlorine dioxide content in disinfectant, either of these two kinds of methods remains to be perfected.更多还原