| 用银盐法测定化妆品中砷含量的不确定度 |
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| 引用本文： | 严方,姚晨之.用银盐法测定化妆品中砷含量的不确定度[J].中国测试技术,2006,32(1):29-31,37. |
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| 作者姓名： | 严方 姚晨之 |
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| 作者单位： | 中国日用化学工业研究院,山西,太原,030001 |
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| 摘 要： | 本文分析了二乙氨基二硫代甲酸银（DCC-Ag）分光光度法测定化妆品中的砷含量的误差来源，对最终结果进行不确定度评估证实方法的总扩展不确定度为0．69mg／kg（包含因子k=2），其中重复性测定偏差为不确定度的主要来源。因此测量中严格掌握样品的处理过程是保证测量精度的重要手段。
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| 关 键 词： | 光度法 砷含量 不确定度 |
| 文章编号： | 1672-4984（2006）01-0029-03 |
| 收稿时间： | 2004-12-06 |
| 修稿时间： | 2004-12-062005-03-14 |
Assessment of uncertainty of arsenic content of cosmetic by silver salt law |
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| YAN Fang,YAO Chen-zhi.Assessment of uncertainty of arsenic content of cosmetic by silver salt law[J].China Measurement Technology,2006,32(1):29-31,37. |
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| Authors: | YAN Fang YAO Chen-zhi |
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| Affiliation: | China Research Institute of Daily Chemical Industry, Taiyuan 030001, China |
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| Abstract: | We analyzed error of determining content of arsenic by luminosity of DCC-Ag in cosmetic. Including standard curve , parallelism of lest result,quantify of sample,and so on.The last result indicated that extend uncertainty of mensuration of assess is 0.69mg/kg, contain gene is two , and the uncertainty of mensuration of our test result depend on mostly the error of repeating mensuration. So the process of treating sample is very important. |
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| Keywords: | Luminosity law Content of arsenic Uncertainty of mensuration |
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