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目的 将统计质量控制方法应用于盐碘分析，提高盐碘分析的准确性。方法 ｘ 控制图、ｘ Ｒ 控制图、尤登图、秩和检验。结果 通过实验室内部及外部质量控制发现严重偏离的实验数据以及存在系统误差的实验室。结论 在日常盐碘分析工作中运用统计质量控制方法能确保实验数据的准确。
Objective To apply statistical quality control method to salt iodine analysis to improve the accuracy of salt iodine analysis. Method x control chart, x R control chart, Youden chart, rank sum test. Results Significantly deviating experimental data and laboratory errors were found through laboratory internal and external quality control. Conclusion The use of statistical quality control methods in routine salt iodine analysis can ensure the accuracy of the experimental data.