| 食品级二氧化碳中苯含量气相色谱分析方法的研究 |
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| 引用本文： | 宋笑明,李春瑛,王德发,杜秋芳,阮俊,吴梦一. 食品级二氧化碳中苯含量气相色谱分析方法的研究[J]. 低温与特气, 2009, 27(2): 25-28 |
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| 作者姓名： | 宋笑明 李春瑛 王德发 杜秋芳 阮俊 吴梦一 |
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| 作者单位： | 河南省计量科学研究院,河南,郑州,花园路21号,450008;中国计量科学研究院,北京,朝阳,和平街,北三环东路18号,100013;云南省计量测试技术研究院,云南,昆明,650228;北京化工大学,北京,100029 |
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| 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。
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| 关 键 词： | 食品级二氧化碳 苯 气相色谱分析法 |
Study on Gas Chromatography Method by Benzene in Food-Grade Carbon Dioxide |
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| SONG Xiao-ming,LI Chun-ying,WANG De-fa,DU Qiu-fang,RUAN Jun,WU Meng-yi. Study on Gas Chromatography Method by Benzene in Food-Grade Carbon Dioxide[J]. Low Temperature and Specialty Gases, 2009, 27(2): 25-28 |
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| Authors: | SONG Xiao-ming LI Chun-ying WANG De-fa DU Qiu-fang RUAN Jun WU Meng-yi |
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| Affiliation: | 1.Henan Institute of Metrology;Zhengzhou 450008;China;2.National Institute of Metrology;Beijing 100013;3.YunNan Institute of Metrology and Testing Technology;Kunming 650228;4.Beijing University of Chemical Technology;Beijing 100029;China |
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| Abstract: | 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）. |
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| Keywords: | food-grade carbon dioxide benzene gas chromatography method |
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