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bce ›› 2017, Vol. 51 ›› Issue (6): 26-32.doi: 10.3969/j.issn.1673-5854.2017.06.005

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Determination of Monosaccharides in High Temperature Hydrolysate of Rape Straw by High Performance Liquid Chromatography

FENG Guangrong1,2, LU Houfang1,2, LIANG Bin1,2, LIU Yingying2   

  1. 1. College of Chemical Engineering, Sichuan University, Chengdu 610065, China;
    2. Institute of New Energy and Low Carbon Technology, Chengdu 610065, China
  • Received:2016-10-27 Online:2017-11-30 Published:2017-12-08

Abstract: The method was developed to determine monosaccharides in the high temperature hydrolysate of rape straw catalyzed by CO2 via high performance liquid chromatography(HPLC). The monosaccharides were separated on the PrevailTM ES carbohydrate column at 35 ℃ with the mixture of acetonitrile/water(80:20,volume ratio) as mobile phase, which was under isocratic elution at the flow rate of 0.8 mL/min. They were detected by evaporative light-scattering detector(ELSD) using dry air as carrier gas at flow rate of 3.0 L/min and drift tube working at 95 ℃. The HPLC analysis method could ensure six monosaccharides(including arabinose, xylose, fructose, mannose, galactose and glucose) separate well within 20 min. The resultant correlation coefficients(R2) of monosaccharides were 0.999 1-0.999 7. The average recovery values were 95.3 %-108.0 %, and the relative standard deviation percentage(RSD) was less than 3 %.

Key words: high performance liquid chromatography, evaporative light-scattering detector, straw hydrolysate, monosaccharide

CLC Number: