Evaluating quantitative determination of levoglucosan and hydroxyacetaldehyde in bio-oils by gas and liquid chromatography

被引：10

作者：

Marathe, P. S. ^{[1
]}

Juan, A. ^{[2
,3
]}

Hu, Xun ^{[4
]}

Westerhof, R. J. M. ^{[1
]}

Kersten, S. R. A. ^{[1
]}

机构：

[1] Univ Twente, Dept Sci & Technol TNW, SPT, NL-7522 NB Enschede, Netherlands

[2] Univ Twente, MESA Inst Nanotechnol, Biomol Nanotechnol ENT, NL-7522 NB Enschede, Netherlands

[3] Univ Twente, MESA Inst Nanotechnol, Mol Nanofabricat MNF, NL-7522 NB Enschede, Netherlands

[4] Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China

来源：

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS | 2019年 / 139卷

关键词：

Gas chromatography (GC); Liquid chromatography (LC); Pyrolysis; Biomass; Levoglucosan; Hydroxyacetaldehyde; FAST PYROLYSIS; LIGNOCELLULOSIC BIOMASSES; PRODUCT DISTRIBUTION; FLASH PYROLYSIS; SOLID RESIDUES; SULFURIC-ACID; DOUGLAS-FIR; CELLULOSE; WOOD; SUGARS;

D O I：

10.1016/j.jaap.2019.02.010

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This communication evaluates the suitability of gas and liquid chromatography for the quantification of levoglucosan and hydroxyacetaldehyde in bio-oils. It was found that both techniques can principally determine levoglucosan quantitatively in cellulose/biomass derived bio-oils. However, it is also shown that oligo-anhydrosugars present in the bio-oils undergo depolymerisation to levoglucosan during gas chromatography, resulting in an overestimation of the concentration of levoglucosan. Hydroxyacetaldehyde can only be determined quantitatively by liquid chromatography. Presented experimental evidence shows that the high temperature (200-320 degrees C) of injection in gas chromatography is a key factor causing oligo-anhydrosugars and hydroxyacetaldehyde to react during analysis, which may lead to flawed results.

引用

页码：233 / 238

页数：6

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