摘要
木质纤维素催化转化制备糠醛、糠醇和5-羟甲基糠醛等呋喃化合物是生物质利用的重要途径之一。为给木质纤维素催化转化制呋喃化合物研究提供基础技术支持,分别建立了能够准确测定呋喃类产物的气相色谱内标法和高效液相色谱外标法。气相色谱采用HP-Innowax毛细管柱和火焰离子化检测器,高效液相色谱选用ShodexSH-1821色谱柱和示差折光检测器。糠醛、糠醇、5-羟甲基糠醛等呋喃产物质量浓度5.0~15.0 mg·mL^(-1)条件下,气相色谱内标法和高效液相色谱外标法的相对标准偏差分别为0.10%~1.70%和0.14%~0.71%,回收率分别为95.6%~102.0%和97.5%~101.9%,检测指标信号强度与样品质量浓度的相关系数均大于0.999。两种方法均可方便快速地实现呋喃类产物的有效分离和准确测定。
Catalytic conversion of lignocellulose to furfural,furfuryl alcohol and 5-hydroxymethylfurfural is one of the important ways of biomass utilization.To provide technical support for the research on the catalytic conversion of lignocellulose to furan compounds,this study established gas chromatography internal standard methods and high performance liquid chromatography external standard methods,which could accurately determine furan products.The gas chromatography(GC)with HP-Innowax capillary column and flame ionization detector,and the high performance liquid chromatography(HPLC)with ShodexSH-1821 column and refractive index detector were used.In the concentration range of 5.0~5.0 mg/mL,the relative standard deviations of furfural,furfuryl alcohol and 5-hydroxymethylfurfural determined by GC internal method and HPLC external method were 0.10%~1.70%,and 0.14%~0.71%,respectively.And the recoveries of these two methods were 95.6%~102.0%,and 97.5%~101.9%,respectively.The correlation coefficients between the signal strength of the detection and the concentration of the compounds were all over 0.999.Both the two methods can achieve the effective separation and the accurate determination of furan products easily and quickly.
作者
郑洪岩
赵子龙
刘煜成
高晓庆
牛宇岚
白宗庆
ZHENG Hongyan;ZHAO Zilong;LIU Yucheng;GAO Xiaoqing;NIU Yulan;BAI Zongqing(Department of Chemistry and Chemical Engineering,Taiyuan Institute of Technology,Taiyuan 030008,China;School of Chemistry and Chemical Engineering,North University of China,Taiyuan 030051,China;State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China)
出处
《山东科技大学学报（自然科学版）》
CAS
北大核心
2023年第4期78-84,共7页
Journal of Shandong University of Science and Technology(Natural Science)
基金
国家自然科学基金青年基金项目(21908151,22202148)。
关键词
气相色谱
高效液相色谱
糠醛
糠醇
5-羟甲基糠醛
木质纤维素
gas chromatography
high performance liquid chromatography
furfural
furfuryl alcohol
5-hydroxymethylfurfural
lignocellulose
