| 微生物法测定婴幼儿配方乳粉中叶酸含量不确定度评估 |
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| 引用本文： | 吴思敏,严家俊,黄钟标. 微生物法测定婴幼儿配方乳粉中叶酸含量不确定度评估[J]. 中国乳业, 2021, 0(7): 91-97. DOI: 10.12377/1671-4393.21.07.18 |
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| 作者姓名： | 吴思敏 严家俊 黄钟标 |
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| 作者单位： | 广东产品质量监督检验研究院,广东佛山 528300 |
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| 摘 要： | 为评估微生物法测定婴幼儿配方乳粉中叶酸含量的不确定度,结合《GB 5009.211—2014食品安全国家标准食品中叶酸的测定》及不确定度相关评估标准以及统计学方法,对婴幼儿配方乳粉中叶酸含量测定过程中的不确定度进行分析和评估.结果显示,婴幼儿配方乳粉中叶酸含量为(148.49±7.37)μg/100 g,k=2.其中,...
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| 关 键 词： | 微生物法 叶酸 婴幼儿配方乳粉 不确定度 |
Uncertainty Evaluation for the Determination of Folic Acid in Infant Formula by Microbiological Methods |
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| WU SiMin,YAN JiaJun,HUANG ZhongBiao. Uncertainty Evaluation for the Determination of Folic Acid in Infant Formula by Microbiological Methods[J]. China Dairy, 2021, 0(7): 91-97. DOI: 10.12377/1671-4393.21.07.18 |
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| Authors: | WU SiMin YAN JiaJun HUANG ZhongBiao |
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| Affiliation: | Guangdong Testing Institute of Product Quality Supervision, Foshan Guangdong 528300 |
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| Abstract: | To evaluate the uncertainty for determination of folic acid in infant formula by microbiological method. According to GB 5009.211—2014 National food safety standard-Determination of folic acid in food and relevant evaluation criteria of uncertainty and relevant statistical methods,the uncertainty components affecting folic acid content results in infant formula food were analysed and evaluated.The content of folic acid in infant formula was (148.49±7.37)μg/100g,k=2.It was found that the preparation process of standard solution and the preparation process of sample solution were the main factors affecting the test results.The deviation of instrument measurement, repeatability and test methods were secondary factors.The microbiological determination method of folic acid in infant formula has low uncertainty,It can be used for the determination of folic acid in infant formula. |
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| Keywords: | microbial method folic acid infant formula uncertainty |
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