食品添加剂二氧化碳中乙醇气体标准物质气相色谱分析方法和性能参数的研究  

Research on Gas Chromatography Analysis Method and Performance Evaluation of Ethanol in Carbon Dioxide Standard Gas as Food Additives

作　　者：李春瑛[1] 韩桥[1] 王德发[1] 胡树国[1] 吴梦一[2] 宋笑明 阮俊[4] 杜秋芳[1] 

机构地区：[1]中国计量科学研究院,北京100013 [2]北京化工大学,北京100029 [3]河南省计量科学研究院,郑州450008 [4]云南省计量测试技术研究院,昆明650228

出　　处：《现代科学仪器》2009年第5期71-76,共6页Modern Scientific Instruments

摘　　要：文章介绍了食品添加剂二氧化碳中乙醇气体标准物质的分析方法和性能评价方法。采用美国Agilent 6890N气相色谱仪FID检测器,在最佳色谱实验条件下对二氧化碳中乙醇气体标准物质的均匀性、一致性、稳定性(随时间变化、压力变化)进行了考察。研究成果表明二氧化碳中乙醇气体标准物质重量配制的相对扩展不确定度小于2%(k=2)。This paper introduced the analysis method and performance evaluation of ethanol in carbon dioxide gas standard material as food additives.Ethanol series standard gas were analyzed by American Agilent 6890N Gas Chromatograph with FID detector.In the optimum experimental condition,it also presented the results of uniformity, consistency,stability（changes through time or pressure） of ethanol in carbon dioxide gas standard material.The results of the study indicated that the relatively expanded uncertainty of ethanol in carbon dioxide gas standard material prepared by weight method was less than 2%（K=2）.

关 键 词：食品添加剂二氧化碳 气相色谱方法 乙醇气体标准物质 

分 类 号：R155.5[医药卫生—营养与食品卫生学]