| 气相色谱法测定酯化反应液中的甲基丙烯酸甲酯及甲醇 |
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| 引用本文： | 吴才玉,曾崇余. 气相色谱法测定酯化反应液中的甲基丙烯酸甲酯及甲醇[J]. 色谱, 1997, 15(5): 456-457 |
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| 作者姓名： | 吴才玉 曾崇余 |
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| 作者单位： | 镇江师范专科学校(吴才玉)，南京化工大学(曾崇余) |
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| 摘 要： | 用正庚烷作内标物，１０％ＰＥＧ２０Ｍ＋１％ＮａＯＨ／酸洗２０１红色担体作固定相，氢焰检测，对酯化反应液中的甲基丙烯酸甲酯（ＭＭＡ）及甲醇进行定量分析。测得ＭＭＡ和ＭｅＯＨ的校正因子分别为１．６５和４．１０，其相对误差分别小于１．５％和２．５％。方法便捷、可靠，值得推广应用。
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| 关 键 词： | 甲基丙烯酸甲酯 气相色谱法 酯化反应 |
Gas Chromatographic Analysis of Methyl Methacrylate and Methanol in Its Esterification Mixture |
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| C Wu,C Zeng. Gas Chromatographic Analysis of Methyl Methacrylate and Methanol in Its Esterification Mixture[J]. Chinese journal of chromatography, 1997, 15(5): 456-457 |
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| Authors: | C Wu C Zeng |
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| Affiliation: | Zhenjiang Teachers College, Zhenjiang, 212003. |
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| Abstract: | A fast, simple and accurate gas chromatographic method is established for determining the content of methyl methacrylate (MMA) and methanol in the esterification mixture of methacrylic acid with methanol in the presence of sulfuric acid. In the measurement, polyethylene glycol-20M/sodium hydroxide was adopted as liquid phase, coated on the acid-washed 201 pink support. n-Heptane was used as the internal standard and the correction factors of MMA and methanol obtained were 1.65 and 4.10, respectively. It is significant for this method to be used to control MMA production by acetone cyanohydrin method and to improve the production technology. |
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| Keywords: | gas chromatography esterification methyl methacrylate |
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