| 气相色谱法测定焦油中微量苯稠杂环化合物 |
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| 引用本文： | 闫建康.气相色谱法测定焦油中微量苯稠杂环化合物[J].炼油与化工,2021,32(1):65-67. |
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| 作者姓名： | 闫建康 |
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| 作者单位： | 山西省检验检测中心(国家煤及煤化工产品质量监督检验中心),山西太原030032 |
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| 摘 要： | 利用蒸馏分离—气相色谱法技术,建立了同时测定煤焦油中苊、氧芴和芴的分析方法。通过对色谱条件的优化,以甲苯为溶剂,正十二烷为内标物,将煤焦油馏分采用DB-5毛细管柱,对煤焦油中苊、氧芴和芴定量分析。分析结果表明:3种主要成分线性关系良好,相关系数均大于0.9995,加标回收率为95.4%~102.4%,相对标准偏差为2.89%~7.14%。该方法分离效果好,检测结果准确、可靠。
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| 关 键 词： | 蒸馏分离 苯稠杂环化合物 气相色谱法 |
Determination of trace benzene condensed heterocyclic compounds in coal tar by gas chromatography |
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| Yan Jiankang.Determination of trace benzene condensed heterocyclic compounds in coal tar by gas chromatography[J].Refining Chemical Industry,2021,32(1):65-67. |
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| Authors: | Yan Jiankang |
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| Affiliation: | (Shanxi Provincial Inspection Body and Laboratory(National Center of Quality Supervision and Inspection for Coal and Coal Chemical Product),Taiyuan 030032,China) |
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| Abstract: | An analytical method for determination of acenaphthene,dibenzofuran and fluorene in coal tar was established using distillation separation-gas chromatography technique.By optimizing the chromatographic conditions,using toluene as the solvent and n-dodecane as the internal standard,employing DB-5 capillary column,a quantitative analysis on acenaphthene,dibenzofuran and fluorene in coal tar was conducted.The results showed that,the 3 main components had good linear relationship,the correlation coefficients were all above 0.9995,recovery rates were 95.4%~102.4%and the relative standard deviation(RSD)ranged was at 2.89%~7.14%.The separation effect of this method was good,and the inspection result was accurate and reliable. |
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| Keywords: | distillation separation benzene condensed heterocyclic compounds gas chromatographic method |
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