| 分光光度法测定婴幼儿配方乳粉中磷含量的不确定度评定 |
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| 引用本文： | 李美桃,王波.分光光度法测定婴幼儿配方乳粉中磷含量的不确定度评定[J].乳业科学与技术,2012,35(5):18-20. |
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| 作者姓名： | 李美桃 王波 |
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| 作者单位： | 徐州市产品质量监督检验中心,江苏徐州,221000 |
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| 摘 要： | 运用测量不确定度的基本方法和程序,建立分光光度法测定婴幼儿配方乳粉中磷含量的测量不确定度评定的数学模型,对测量过程中的不确定度来源进行逐项分析和合成,得出分光光度法测定婴幼儿配方乳粉中磷含量的不确定度评定结果.结果表明:当婴幼儿配方乳粉中的磷含量为180.5mg/100g时,扩展不确定度为3.3mg/100g.
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| 关 键 词： | 不确定度 分光光度法 磷含量 婴幼儿配方乳粉 |
Evaluation of the Uncertainty in Spectrophotometric Determination of Phosphorus Content in Infant Formula Milk Powder |
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| LI Mei-tao,WANG Bo.Evaluation of the Uncertainty in Spectrophotometric Determination of Phosphorus Content in Infant Formula Milk Powder[J].JOURNAL OF DAIRY SCIENCE AND TECHNOLOGY,2012,35(5):18-20. |
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| Authors: | LI Mei-tao WANG Bo |
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| Institution: | (Xuzhou Center for Products Quality Supervision and Inspection, Xuzhou 221000, China) |
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| Abstract: | Based on the basic method and procedure for uncertainty evaluation, a mathematical model was established to
estimate the uncertainty in determining phosphorus content in infant formula milk powder by spectrophotometry. Uncertainty
components in the measurement process were analyzed individually and synthesized. The phosphorus content in a commercial
sample of infant formula milk powder was 180.5 mg/100 g, and the expanded uncertainty was calculated as being 3.3 mg/100 g. |
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| Keywords: | uncertainty spectrophotometry phosphorus infant formula milk powder |
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