Chinese Journal of Chromatography ›› 2017, Vol. 35 ›› Issue (8): 875-880.DOI: 10.3724/SP.J.1123.2017.04023

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Regularity of effective carbon numbers of alkanes, alcohols and ethers and its application to determination without authentic standards by gas chromatography

SHENG Liyan1, LIU Tingting1,2, LI Meihua1, PAN Jie1, LUO Yong1,2   

  1. 1. Shanghai Research Institute of Chemical Industry Co. Ltd., Shanghai 200062, China;
    2. State Key Laboratory of Polyolefins and Catalysis, Shanghai 200062, China
  • Received:2017-04-20 Online:2017-08-08 Published:2013-11-25
  • Supported by:

    Shanghai Natural Science Foundation (No. 15ZR1421500); Research Fund for Young Scholars of Shanghai Research Institute of Chemical Industry (No. N271-2015jszx-01).

Abstract:

To realize quantitative analysis without authentic standards by gas chromatography, a calculation method of effective carbon numbers (ECNs) was developed by determining the relative response factors of 66 alkanes, alcohols, ethers with GC-FID and studying the relation between ECNs and chemical structures. The correlation coefficient of 0.9998 (N=66) was achieved between theoretical values and experimental values of ECNs. Fifty-seven percent of determined compounds had relative deviations within ±1% and all of them had relative deviations within ±3%. This method is as accurate as common internal-standard method while used in the determination of oxygenated chemicals in gasoline samples, but with far less time and economical cost. It could be used to solve the problem of lacking authentic standards or surrogates.

Key words: alcohols, alkanes, determination without authentic standards, effective carbon number (ECN), ethers, gas chromatography-flame ionization detection (GC-FID), relative response factor (RRF)

CLC Number: