多种方法分析与评价乙酸乙酯合成实验中产物之纯度

赵华绒,蔡黄菊,秦敏锐,余利明,邵东贝

Analysis and Evaluation of Purity of Ethyl Acetate in the Esterification Reaction of Ethanol and Acetic Acid

Hua-Rong ZHAO,Huang-Ju CAI,Min-Rui QIN,Li-Ming YU,Dong-Bei SHAO

表4 以苯为内标物采用1H NMR内标法分析样品3中乙酸乙酯的纯度

取样量/g mS/g AS 质子类型 AEA P/% P/% 2.716 0.325 1.21 α 3 98.3 98.5 β 2.06 99.7 γ 2.98 97.6