摘要
采用GB 5009.11-2014《食品安全国家标准食品中总砷及无机砷的测定》中氢化物发生原子荧光光谱法进行黑糖中总砷的测定。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。
The total arsenic in brown sugar was determined by hydride generation atomic fluorescence spectrometry according to the standard GB 5009.11-2014“National Food Safety Standards Determination of Total Arsenic and Inorganic Arsenic in Food”.The factors that influenced the uncertainty of measurement result were found out,and the mathematical model was established to calculate the component uncertainty.The combined standard uncertainty and the expanded uncertainty of the method were obtained eventually.
作者
钟宏星
陆剑华
肖鑫
欧健铭
王彩云
余娟
ZHONG Hong-xing;LU Jian-hua;XIAO Xin;OU Jian-ming;WANG Cai-yun;YU Juan(Guangdong Provincial Bioengineering Institute(Guangzhou Sugarcane Industry Research Institute)/Guangdong Key Lab of Sugarcane Improvement&Biorefinery,Guangzhou 510316;China Sugar Inspection Center,Guangzhou 510316)
出处
《甘蔗糖业》
2020年第1期47-51,共5页
Sugarcane and Canesugar
基金
广东省科技计划项目(2016A040403066)
广州市科技计划项目(201806010093)
广东省科学院项目(2016GDASPT-010)
广东省科学院发展专项资金项目(2019GDASYL-0103036)。
关键词
黑糖
总砷
不确定度
Brown sugar
Total arsenic
Uncertainty
