In order to accurately and efficiently determine the purity of ethyl acetate refined products,the separation was carried out according to the programmed heating method based on the analysis condition of gas chromatograph.The initial temperature was set at 80℃,and after 4min,the heating rate started at 20℃/min,and the termination temperature was 140℃.The analysis showed that the separation degree of each peak was greater than 2.0,and the peak shape was symmetrical,sharp and the baseline was stable.Effective separation is possible.After the quantitative analysis of area normalization method,correction factor method and internal standard curve method,the correction factor method has the characteristics of high accuracy,strong stability and economy,and it is more suitable for the determination of ethyl acetate purity than the correction factor method.
ethyl acetatechromatographyinternal standard methodcorrection factornormalization methodchemical experimental technique
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