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目的:建立饮用水中碘含量的酶标仪自动比色检测方法（以下简称本方法）。方法:在0 ~ 10 μg/L和0 ~ 100 μg/L两个碘质量浓度范围内测定水碘含量，对方法的线性关系及检出限、精密度、准确度进行实验验证。并与国家碘缺乏病参照实验室推荐的砷铈催化分光光度法水碘测定结果进行比较分析。结果:0 ~ 10 μg/L和0 ~ 100 μg/L范围内，│n r│均> 0.999 0，检出限分别为0.6、1.1 μg/L（取样量分别为200、100 μl）；低、中、高3种碘质量浓度水样检测精密度相对标准偏差（n RSD）均 0.05）。n 结论:本方法应用于水碘含量测定具有较好的标准曲线线性关系，精密度好，准确度高，适合推广应用。“,”Objective:To establish an automatic colorimetric method for determination of iodine in drinking water by enzyme-labeled instrument (hereinafter referred to as this method).Methods:The water iodine was measured in the range of 0 - 10 μg/L and 0 - 100 μg/L, experiments were carried out on linear relationship, detection limit, precision and accuracy of this method. And the results were compared with the National Reference Laboratory for Iodine Deficiency Disorders recommended arsenic cerium catalytic spectrophotometry method.Results:In the range of 0 - 10 μg/L and 0 - 100 μg/L, all│ n r│ > 0.999 0, the detection limits were 0.6 and 1.1 μg/L (samples were 200 and 100 μl), respectively; the relative standard deviation ( n RSD) of water samples of low, medium and high iodine mass concentrations were 0.05).n Conclusion:This method has good linear curve relationship for determination of water iodine content, good precision and high accuracy, and it is suitable for wide application.