| 摘要: |
| 本文以Porapak-Q担体为固定相,用气相色谱法定性定量分析碳酸乙烯酯水解合成乙二醇的产物。对此体系的色谱条件进行了简要讨论,水解产物采用对照法进行定性分析、内标法进行定量分析,并对此法的准确性和精密度进行了考察。结果 表明,该法定性、定量结果均符合分析要求,且操作简便快速,精密度高,准确度好,适用于环状碳酸酯水解合成二元醇的质量分析,尤其对碳酸乙烯酯水解合成乙二醇新工艺的研究具有实用价值。 |
| 关键词: 碳酸乙烯酯 水解 乙二醇 气相色谱分析 内标法 |
| DOI： |
| 分类号:TQ223.162 |
| 基金项目:长江学者和创新团队发展计划项目(IRT0732);中国石油化工集团公司基金资助项目(408077) |
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| Gas Chromatographic Analysis for Synthesis of Ethylene Glycol from Ethylene Carbonate Hydrolysis |
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Wang Hao, Chen Jian, Liu Dinghua
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College of Chemical and Chemistry Engineering,State Key Laboratory of Materials-Oriented Chemical Engineering,Nanjing University of Technology,Nanjing 210009,Jiangsu,China
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| Abstract: |
| Taking Porapak-Q organic monomer as stationary phase,a gas chromatographic method is used in qualitative analysis and quantitative determination of the ethylene glycol produced from ethylene carbonate hydrolysis reaction.Chromatographic conditions of this system are briefly discussed.Contrast method is used in qualitative analysis,and internal standard method is used in quantitative determination.The accuracy and precision for each component of the method were examined.The experimental results show that the analysis result by this analysis method can meet the analytic requirement.It is convenient,quick and sensitive with good accuracy and precision,so it is suitable to be applied in the quantitative analysis of hydrolysis product,particularly have useful value for the synthetic technology of ethylene glycol from ethylene carbonate hydrolysis. |
| Key words: ethylene carbonate hydrolysis ethylene glycol gas chromatography internal standard method |
