Evaluation of the uncertainty for determination results of iron in grape wine

ZHU Ke-wei; RUAN Xiong-jie; WU Yu-yan

doi:10.13386/j.issn1002-0306.2013.21.081

ZHU Ke-wei, RUAN Xiong-jie, WU Yu-yan. Evaluation of the uncertainty for determination results of iron in grape wine[J]. Science and Technology of Food Industry, 2013, (21): 297-300. DOI: 10.13386/j.issn1002-0306.2013.21.081

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Evaluation of the uncertainty for determination results of iron in grape wine

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The content of iron in two wine samples was measured according to national standards GB /T 15038-2006Common Analytic Methods for Grape Wine & Fruit Wine. The uncertainty source in the whole measuring process was analyzed and each uncertainty component was evaluated and composed.The results revealed that the major source of uncertainty was the preparing of standard solution and the curve fitting and measurement.According to this method, the expanded uncertainty of iron content in two wine samples were 0.14mg /L and 0.15mg /L.

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Evaluation of the uncertainty for determination results of iron in grape wine

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