摘要
依据国家标准GB 5009.262-2016,用气相色谱仪测定大豆油中溶剂残留含量。通过分析测量过程中不确定度来源,对各分量进行计算与合成,从而表达出合成标准不确定度和扩展不确定度,为实验室大豆油中溶剂残留检验过程的质量控制提供有效、可靠的检测数据。实验结果表明:当大豆油中溶剂残留含量为14.0mg·kg^(-1)时,方法引入的扩展不确定度为0.955mg·kg^(-1)。
Base on the national standard GB 5009.262-2016, the residual organic solvents in soya bean oil was determined by gas chromatography. Through the analysis of the uncertainty sources in the measurement process, the components were calculated and synthesized to express the synthetic standard uncertainty and the extended uncertainty. The effective and reliable test data were provided for the quality control of the laboratory in the residual organic solvents testing proces. The experimental results showed that the extended uncertainty introduced by the method was 0.955 mg·kg-1 when the content of residual organic solvents in the sample was 14.0mg · kg-1.
作者
纪宏
张宏宏
杨瀚南
刘朋宇
JI Hong , ZHANG Hong-hong , Yang Han-nan , LIU Peng-yu(Shenyang Institute of Food Inspection, Shenyang 110136, Chin)
关键词
溶剂残留
不确定度
气相色谱法
residual organic solvents
uncertainty
gas chromatography
