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投稿时间：2018-10-11
投稿时间：2018-10-11
中文摘要: 对采用电感耦合等离子体质谱（inductively couple plasma mass spectrometer，ICP-MS）法测定高钙片中铅、砷、铬和镉含量的测量不确定度进行评定。依据有关规定，建立测定高钙片中4 种元素含量的不确定度数学模型，分析测量不确定度的来源，计算各不确定度分量并进行合成。结果表明，铅、砷、铬和镉的扩展不确定度分别为0.056、0.026、0.015、0.024 mg/kg；不确定度主要来源于标准溶液的配制、测量重复性和标准曲线拟合。
Abstract:To evaluate the uncertainty of measurement in the determination of Pb，As，Cr and Cd in high calcium tablets by inductively couple plasma mass spectrometer （ICP -MS）.According to the relevant provisions，a mathematical model was established for uncertainty evaluation.The sources of uncertainty that may be introduced were analyzed and each component of uncertainty was quantified for the calculation of the combined uncertainty.The results showed that the expand uncertainty for Pb，As，Cr and Cd were 0.056，0.026，0.015，0.024 mg/kg，respectively.The preparation of standard solution，measurement repeatability and curve fitting were found to be the main sources of uncertainty.
keywords: inductively couple plasma mass spectrometer（ICP-MS） high calcium tablets Pb As Cr Cd uncertainty
文章编号：201916022 中图分类号： 文献标志码：
基金项目:新疆维吾尔自治区食品药品监督管理局科研项目[新食药监20170001（科）]
| Author Name | Affiliation |
| YAN Shun-hua，WANG Xiu-xia，YAN Ya，SHALAMAITI·Aili* | Xinjiang Uygur Autonomous Region Institute for Food and Drug Control，Urumqi 830004，Xinjiang，China |
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