期刊论文

中文

食品科学

1002-6630

2013

34

12

143-146

10.7506/spkx1002-6630-201312030

863;2010AA23004:国家高技术研究发展计划（863计划） 2012BAD12B04:国家科技支撑计划

本校为第一机构

根据JJF 1059—1999《测量不确定度评定与表示》的原理与方法,建立了超高效液相色谱法测定婴幼儿配方乳粉中VD_3含量的测量不确定度评定的数学模型。对数学模型中各不确定度分量的来源进行分析、量化和合成。当取样量为10.0g,其测定的VD_3含量为(7.45 ± 0.2091)μg/100g。最终结果的不确定度主要由标准溶液、标准曲线的建立及测量随机性因素的不确定度引起。整体评定方法清晰合理,简便准确,适合超高效液相色谱法、高效液相色谱法的不确定度评定。

Based on JJF 1059---1999 Evaluation of the Uncertainty of Determination and Expression, a mathematical model was established to assess the uncertainty of analyzing cholecalciferol （VD3） in infant milk powder by ultra performance liquid chromatography （UPLC）. Factors contributing to the uncertainty were analyzed, quantified and synthesized. The expanded uncertainty of VD3 determination for 10.0 g of samples was 0.2091 μg. Our results showed that the uncertainty of measurement was mainly caused by the preparation of standard solution, the es...