Rapid determination of formic and acetic acids in biomass hydrolysate by headspace gas chromatography

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• 作者：Dandan Zhou ; Qingxi Hou ; ^{qingxihou@tust.edu.cn} ; Wei Liu ; Xiaoli Ren
• 关键词：Formic acid (FA) ; Acetic acid (AA) ; Headspace gas chromatography (HS-GC) ; Biomass hydrolysate
• 刊名：Journal of Industrial and Engineering Chemistry
• 出版年：2017
• 出版时间：25 March 2017
• 年：2017
• 卷：47
• 期：Complete
• 页码：281-287
• 全文大小：1831 K
• 卷排序：47

文摘

A headspace gas chromatography (HS-GC) method is developed for determination of formic acid (FA) and acetic acid (AA) in biomass hydrolysate. The method is based on the “in-vial” derivatization reaction of alcohols and acids. NaHSO4/ethanol is selected as the preferred derivatization reagent. The method has a reproducibility of RSD <0.87% and recovery of 97.1%–103.1%. The limits of the quantification were 2.02 and 2.38 mg/L for FA and AA, respectively. The GC analysis time only required 12.4 min. The method is rapid, sensitive and suitable for measuring FA and AA in the multifarious biomass hydrolysates in pulping and biorefinery industries.