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作 者:徐林利 张利平[2] 张丽洁[3] 郑丹[2] 张裕曾[2] 陈志亮[2] XU Lin-li;ZHANG Li-ping;ZHANG Li-jie;ZHENG Dan;ZHANG Yu-zeng;CHEN Zhi-liang(Affiliated Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,Wuhan Hubei,430030,China;School of Public Health,Tongji Medical College,Huazhong University of Science and Technology,Wuhan Hubei,430030,China;Wuhan Blood Center,Wuhan Hubei,430030,China)
机构地区:[1]华中科技大学同济医学院附属同济医院,湖北武汉430030 [2]华中科技大学同济医学院公共卫生学院,湖北武汉430030 [3]武汉血液中心,湖北武汉430030
出 处:《职业与健康》2021年第3期326-329,共4页Occupation and Health
摘 要:目的评定原子荧光光谱法测定尿中锑含量的测量不确定度。方法采用GBZ/T 302—2018《尿中锑的测定原子荧光光谱法》测定尿中锑含量,依据JJF 1059.1—2012《测量不确定度评定与表示》和GB/T 27420—2018《合格评定生物样本测量不确定度评定与表示应用指南》系统评定不确定度,对测定结果进行完整表述。结果影响尿中锑含量测定结果的不确定度主要来源于锑标准应用液的配制和原子荧光光度仪,尿中锑测定结果最终表述为(7.83±0.22)μg/L(k=2)。结论本次实验系统分析及评定了尿中锑测定的不确定度来源及分量,通过控制样品测定的重要环节可以提高测定结果的准确性,减小不确定度。Objective To evaluate the uncertainty in determination of antimony in urine by atomic fluorescence spectrometry.Methods Antimony in urine was determined following the Determination of antimony in urine-atomic fluorescence spectrometry method(GBZ/T 302-2018). The uncertainty was evaluated following the Evaluation and expression of uncertainty in measurement(JJF1059.1-2012) and Conformity assessment-application guide for evaluation and expression of uncertainty in biological sample measurement(GB/T 27420-2018), then the results were completely stated. Results The uncertainty of urine antimony determination was mainly derived from the preparation of antimony standard solution and the atomic fluorescence spectrometer. The result of antimony in urine determined by this method was(7.83±0.22)μg/L(k=2). Conclusion This experiment systematically analyzes and evaluates the sources and components of uncertainty in the determination of antimony in urine, and the important process of the method should be controlled to improve the result accuracy and reduce the uncertainty.
分 类 号:R115[医药卫生—公共卫生与预防医学]
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