摘要
实验采用气相色谱法分析二氧化碳中的痕量级组分气体——苯。主要影响因素有进样口温度、毛细柱温度、检测器温度、毛细柱流速、尾吹,对各项优化后测得精密度为0.2%,线性误差不大于±2%。该方法快速、准确,可应用于该标准物质的分析定值。
The gas chromatography method is used to analyze benzene trace component in carbon dioxide, the major influence factors are inlet temperature, oven temperature, detector temperature, column flow rate, make-up gas, the precision via optimized factors is 0. 2%, the linear errors are no more than ±2%. This method is fast and accurate, can be used in analysis and value certification of this Certified Reference Material （CRM）.
出处
《低温与特气》
CAS
2009年第2期25-28,共4页
Low Temperature and Specialty Gases
关键词
食品级二氧化碳
苯
气相色谱分析法
food-grade carbon dioxide
benzene
gas chromatography method
