工业用氢氧化钠中氯酸钠含量测定方法的探讨

Study on the method for the determination of sodium chlorate industrial sodium hydroxide

依据GB/T 11200.1—89和GB/T 11200.1—2006,针对盐酸用量、加蒸馏水量、反应温度、显色时间和比色皿选择等影响因素做了细化测试和摸索,改进测定条件后,标准曲线线性系数基本都在0.995以上,样品平行性得到了较大改善,达到了标准允许误差要求。

According to GB/T 11200.1-89 and GB/T 11200.1-2006,in view of the dosage of hydrochloric acid,distilled water,reaction temperature,color rendering time and color dish selection factors has made the detailed test and fumble,improved determination conditions,basic is above 0.995 linear coefficient of standard curve,parallelism and sample be improved,to meet the standard permissible error requirements.