Citation: ZHAO Yan, XU Dongyu, LIN Haoxue, CHEN Xiaoyan, CHEN Zeyong. Determination of three ester compounds in gasoline by two-dimensional gas chromatography[J]. Chinese Journal of Chromatography, ;2014, 32(6): 662-665. doi: 10.3724/SP.J.1123.2014.01045 shu

Determination of three ester compounds in gasoline by two-dimensional gas chromatography

1.
Shenzhen Academy of Metrology and Quality Inspection, Shenzhen 518131, China

Corresponding author: XU Dongyu,
Received Date: 27 January 2014
Available Online: 8 April 2014
Fund Project: 国家标准编制计划项目(20131689-T-469). (20131689-T-469)

A simple and efficient method based on the technique of packed column switching-back flushing was established for the analysis of the ester compounds (including ethyl acetate, sec-butyl acetate, dimethyl carbonate) in gasoline. With the use of a non-polar pre-column, we successfully separated the components in gasoline by back flushing out components heavier than n-octane, while the lighter components and the ester compounds were flushed into a polar analytical column. In this method, external standard method was applied for quantification. As a result, good linear relationships existed among the three ester compounds in the range of 50 mg/L to 50000 mg/L. The linear correlation coefficients (r²) for ethyl acetate, sec-butyl acetate and dimethyl carbonate were 0.99999, 1.00000 and 0.99995, respectively. The relative standard deviations (RSDs) of standard samples in six continuous tests were within 1.0%. The recoveries were between 98.7% and 107.9%. The detection limit of the method (S/N=3) was 5 mg/L. No pretreatment was needed. This method is simple, accurate, quick as well as efficient, and can be used as an ideal method for the analysis of the ester compounds in gasoline.
- two-dimensional gas chromatography,
- ethyl acetate,
- sec-butyl acetate,
- dimethyl carbonate,
- gasoline
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Determination of three ester compounds in gasoline by two-dimensional gas chromatography

南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com