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首页> 外文期刊>ACS Omega >Rapid Determination of Acetic Acid, Furfural, and 5-Hydroxymethylfurfural in Biomass Hydrolysates Using Near-Infrared Spectroscopy
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Rapid Determination of Acetic Acid, Furfural, and 5-Hydroxymethylfurfural in Biomass Hydrolysates Using Near-Infrared Spectroscopy

机译:近红外光谱法快速测定生物质水解物中的乙酸,糠醛和5-羟甲基糠醛

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Near-infrared spectroscopy (NIRS) is a rapid detection technique that has been used to characterize biomass. The objective of this study was to develop suitable NIRS models to predict the acetic acid, furfural, and 5-hydroxymethylfurfural (HMF) contents in biomass hydrolysates. Using a uniform distribution of pretreatment conditions, 60 representative biomass hydrolysates were prepared. Partial least-squares regression was used to develop models capable of predicting acetic acid, furfural, and HMF contents. Optimal models were built using the wavenumber range of 9000–8000 and 7000–5000 cm~(–1) with high R ~(2) for calibration and validation models, small root-mean-square error of calibration (<0.21) and root-mean-square error of prediction (RMSEP, 2.7. The NIRS method largely reduced the analytical time from ~55 to <1 min and has no cost for reagents.
机译:近红外光谱(NIRS)是一种快速检测技术,已用于表征生物质。这项研究的目的是开发合适的NIRS模型,以预测生物质水解物中乙酸,糠醛和5-羟甲基糠醛(HMF)的含量。使用均匀分布的预处理条件,制备了60种代表性的生物质水解产物。使用偏最小二乘回归来开发能够预测乙酸,糠醛和HMF含量的模型。最佳模型的建立使用的波数范围为9000–8000和7000–5000 cm〜(–1),具有高 R〜(2)的校准和验证模型,校准的均方根误差小(<0.21 )和预测的均方根误差(RMSEP,2.7。NIRS方法将分析时间从〜55分钟大大减少了至<1分钟,并且无需使用试剂。

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