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[目的]通过对微波消解的电感耦合等离子体质谱法测定尿中铅,实施分析质量控制和进行分析误差预测,了解实验室铅检测能力和质量控制能力,提高实验室检测结果的准确性和可比性。[方法]按水质分析评价微量元素精密度和准确度中的实验室内部质量控制工作程序进行。[结果]各种溶液测定的总标准差(St)均小于其浓度的5%,总平均回收率可信限(R/d=1.03)在允许范围内,质控考核结果为满意。[结论]用微波消解的电感耦合等离子体质谱法测定尿中铅,实验室分析误差可控制在容许值内。
[Objective] The research aimed to determine the lead in urine by inductively coupled plasma mass spectrometry with microwave digestion, analyze the quality control and analyze the error prediction, understand the laboratory lead detection ability and quality control ability, and improve the accuracy and comparability of laboratory test results Sex. [Method] According to the water quality analysis and evaluation of the precision and accuracy of trace elements in the laboratory internal quality control procedures. [Results] The total standard deviations (St) of various solutions were less than 5% of the total concentration, and the total average recovery was credible (R / d = 1.03) within the allowable range. [Conclusion] The determination of lead in urine by microwave digestion inductively coupled plasma mass spectrometry can be controlled within the allowable value.