| C4馏分中微量乙腈的大口径毛细管色谱测定 |
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| 引用本文： | 赵国宏,周围,孔德玮,曾庆梅,雷晓强,陈立仁.C4馏分中微量乙腈的大口径毛细管色谱测定[J].分析测试学报,2002,21(1):73-75. |
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| 作者姓名： | 赵国宏 周围 孔德玮 曾庆梅 雷晓强 陈立仁 |
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| 作者单位： | 中国科学院兰州化学物理研究所西北天然药物研究发展中心,甘肃,兰州,730000 |
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| 摘 要： | 采用水相萃取富集技术，利用大口径厚液膜HLZ－60石英毛细管色变柱对C4烃抽余液中的微量乙腈进行分析；结果表明LZP－60石英毛细管色谱柱对乙腈化合物具有良好的惰性和色谱选择性；残余烃杂质峰和大量水分不干扰乙腈峰的流出；定量分析结果表明，样品测量的相对标准偏差为15％，其相对误差为7％，色谱分离检测法完全满足实际工作中微量乙腈分析的需要。
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| 关 键 词： | 毛细管色谱 气相色谱 乙腈 微量分析 C4馏分 碳4馏分 测定 石油 |
| 文章编号： | 1004-4957(2002)01-0073-03 |
| 修稿时间： | 2001年1月5日 |
Determination of Trace Acetonitrile in Treated C4 Fraction |
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| ZHAO Guo _ hong,ZHOU Wei,KONG De _ wei,ZENG Qing _ mei,LEI Xiao _ qiang,CHEN Li _ ren.Determination of Trace Acetonitrile in Treated C4 Fraction[J].Journal of Instrumental Analysis,2002,21(1):73-75. |
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| Authors: | ZHAO Guo _ hong ZHOU Wei KONG De _ wei ZENG Qing _ mei LEI Xiao _ qiang CHEN Li _ ren |
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| Abstract: | The trace acetonitrile in the treated C4 fractions was analyzed by gas chromatography with a self _ made LZP _ 60 wide bore capillary column and FID. The acetonitrile was extracted by water. The elution of acetonitrile peak was not disturbed by remains of C4 fraction and large amount of water in the sample extracted, the inertness and selectivity of the LZP _ 60 capillary column for acetonitrile is good. The relative standard deviation of 15% and relative error of 7% were found. The proposed method can meet needs of determination of trace acetonitrile in real samples. |
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| Keywords: | Capillary chromatography Gas chromatography Acetonitrile Microanalysis C4 fraction |
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