| 气相色谱法测定粗苯中苯、甲苯和二甲苯含量 |
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| 引用本文： | 王永苗,李雁如. 气相色谱法测定粗苯中苯、甲苯和二甲苯含量[J]. 当代化工, 2014, 0(1): 82-83,92 |
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| 作者姓名： | 王永苗 李雁如 |
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| 作者单位： | 国家煤及煤化工产品质量监督检验中心,山西太原030012 |
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| 摘 要： | 建立了毛细管气相色谱法测定粗苯中苯、甲苯、二甲苯含量的方法。采用HP-5毛细管柱分离,氢火焰离子化检测器检测,单点标准对照法定量。该方法分析速度快,测定重现性好,准确度和精密度高,三苯各个组分相对标准偏差均小于6%,回收率在96.0%~100.8%间。
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| 关 键 词： | 粗苯 苯 甲苯 二甲苯 气相色谱 |
Determination of Benzene,Toluene and Xylene Content in Crude Benzol by Gas Chromatography |
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| WANG Yong-miao,LI Yan-ru. Determination of Benzene,Toluene and Xylene Content in Crude Benzol by Gas Chromatography[J]. Contemporary Chemical Industry, 2014, 0(1): 82-83,92 |
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| Authors: | WANG Yong-miao LI Yan-ru |
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| Affiliation: | (National Center of Supervision and Inspection for Coal and Coal Chemical Product Quality, Shanxi Taiyuan 030012, China) |
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| Abstract: | A gas chromatography method has been established for determination of benzene, toluene and xylene content in crude benzol. The optimal experiments condition was determined as follows： using HP-5 capillary column as separator, FID as detector and the single point calibration method for quantitative analysis. The results show that the method has good accuracy and precision. The relative standard deviation （n=6） is less than 6% ,and the recovery rate is 96.0%- 100.8%. |
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| Keywords: | Crude benzol Benzene Toluene Xylene Gas chromatography |
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