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连续流动法测定烟草中淀粉的不确定度评定

韶济民,胡瑜宁,庞夙,张海燕,靳冬梅,熊巍,陶晓秋

Analytical Instrumentation（2021）

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Abstract
为提高连续流动分析仪检测烟草淀粉的结果准确性,依据JJF1059.1-2012《测量不确定度评定与表示》,对连续流动法测定烟草中淀粉的测量不确定度进行了评定.结果表明:样品的水分、萃取液体积和样品浓度是烟草中淀粉测量不确定度的主要影响因素;淀粉的测定值为3.90％,连续流动法测定烟草中淀粉的合成不确定度为0.05％,在95％ 包含概率下其扩展不确定度分别为0.1％.
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