高效液相色谱法测定酱油中苯甲酸含量的测量不确定度评定  

Uncertainty Evaluation for Determining Benzoic Acid in Sauce by High Performance Liquid Chromatography

作　　者：严开芹 谭荣威 曾小平 向君毅 郑雪芝 谭智蕾 YAN Kaiqin;TAN Rongwei;ZENG Xiaoping;XIANG Junyi;ZHENG Xuezhi;TAN Zhilei(Qingyuan Food Inspection Center,Qingyuan 511500,China)

机构地区：[1]清远市食品检验中心,广东清远511500

出　　处：《食品安全导刊》2024年第36期42-45,共4页China Food Safety Magazine

摘　　要：本文采用高效液相色谱法检测酱油中苯甲酸含量并进行测量不确定度评定。结果表明,在95%置信水平下,当酱油中苯甲酸含量为0.385 g·kg^(-1)时,扩展测量不确定度为0.022 0 g·kg^(-1)(k=2)。酱油中苯甲酸含量测量不确定度的主要贡献为分析仪器、工作曲线的拟合、苯甲酸标准溶液和苯甲酸标准系列溶液配制。This article uses high-performance liquid chromatography to detect the content of benzoic acid in soy sauce and evaluate the measurement uncertainty.The results showed that at a 95% confidence level,when the benzoic acid content in soy sauce was 0.385 g·kg~(-1),the extended measurement uncertainty was 0.022 0 g·kg~(-1) (k=2).The main contributions to the measurement uncertainty of benzoic acid content in soy sauce are analytical instruments,fitting of working curves,benzoic acid standard solutions,and preparation of benzoic acid standard series solutions.

关 键 词：高效液相色谱法 酱油 苯甲酸 不确定度 

分 类 号：TS264.21[轻工技术与工程—发酵工程] O657.72[轻工技术与工程—食品科学与工程]