摘要
依据GB/T18979—2003《食品中黄曲霉毒素的测定》,对免疫亲和层洗净化高效液相色谱法测定木薯干中黄曲霉毒素B1的不确定度进行了评定。对检测过程中产生的不确定分量进行了分类,计算各分量的相对标准不确定度,从而计算出合成标准不确定度和扩展不确定度。通过评估发现,对测定不确定度影响最大的分量是检测方法的回收率,影响最小的分量是样品质量的称量,合成相对标准不确定度为10.5%。
The uncertainties in the determination of aflatoxins B1 in dry cassava by HPLC according to GB/T 18979-2003 were evaluated. The uncertainty components were classified, the relative standard uncertainty of each component was calculated, and the combined standard uncertainty and expanded uncertainty were calculated eventually. The evaluation results suggested that the component with the maximum uncertainty influence was recovery rate and the component with the minimum uncertainty influence was sample weighing, with the relative combined standard uncertainty of 10.5 %.
出处
《酿酒科技》
2016年第4期93-95,共3页
Liquor-Making Science & Technology
基金
山东出入境检验检疫局科研计划项目(SK201619)
关键词
液相色谱
黄曲霉毒素
不确定度
木薯干
liquid chromatography
aflatoxins
uncertainty
dry cassava
