引用本文:
赵华绒, 蔡黄菊, 秦敏锐, 余利明, 邵东贝. 多种方法分析与评价乙酸乙酯合成实验中产物之纯度[J]. 大学化学,
2016, 31(9): 56-61.
doi:
10.3866/PKU.DXHX201602015
Citation: ZHAO Hua-Rong, CAI Huang-Ju, QIN Min-Rui, YU Li-Ming, SHAO Dong-Bei. Analysis and Evaluation of Purity of Ethyl Acetate in the Esterification Reaction of Ethanol and Acetic Acid[J]. University Chemistry, 2016, 31(9): 56-61. doi: 10.3866/PKU.DXHX201602015
Citation: ZHAO Hua-Rong, CAI Huang-Ju, QIN Min-Rui, YU Li-Ming, SHAO Dong-Bei. Analysis and Evaluation of Purity of Ethyl Acetate in the Esterification Reaction of Ethanol and Acetic Acid[J]. University Chemistry, 2016, 31(9): 56-61. doi: 10.3866/PKU.DXHX201602015
多种方法分析与评价乙酸乙酯合成实验中产物之纯度
English
Analysis and Evaluation of Purity of Ethyl Acetate in the Esterification Reaction of Ethanol and Acetic Acid
Abstract:
The gas chromatography method using internal standard and area normalization calibration and the NMR method using internal standard calibration are adopted for the determination of product purity in the synthesis of ethyl acetate. The purity of ethyl acetate detected by the GC internal standard method was the lowest. In contrast, the purity detected by the NMR internal standard method was the highest. The NMR internal standard method has more advantages, for this method can be used to complete the quantitative analysis and structural identification simultaneously, without the need to measure the correction factor.
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