原子吸收光谱法测定白砂糖中铜的结果不确定度评定  

Uncertainty Evaluation of Determination Result of Copper in White Granulated Sugar by Atomic Absorption Spectrometry

作　　者：余娟[1] 王桂华[1] 郭剑雄[1] 李海乔[1] 

机构地区：[1]广州甘蔗糖业研究所广东省甘蔗改良与生物炼制重点实验室国家糖业质量监督检验中心,广州510316

出　　处：《甘蔗糖业》2013年第1期52-57,共6页Sugarcane and Canesugar

摘　　要：采用国家标准《食品中铜的测定》GB/T 5009.13-2003中原子吸收光谱法进行白砂糖铜含量测定,找出影响测定结果不确定度的因素,通过建立数学模型对各个不确定度分量进行计算,最终给出该法测定结果的合成标准不确定度和扩展不确定度。By the determination of Copper in white granulated sugar according to the method in National Standard Determination of copper in food GB/T 5009.13-2003, the influence factors of uncertainty were found, and the mathematical model was established to calculate the component uncertainty. The combined standard uncertainty and the expanded uncertainty of the method were given eventually.

关 键 词：白砂糖 铜 不确定度 

分 类 号：TS247[轻工技术与工程—制糖工程]