Precision test for the spectral characteristic of FT-NIR for the measurement of water content of wheat straw

12th TSAE International Conference

Fonseca, F.G.^1^2 ; Funke, A.^1 ; Saechua, W.^2 ; Sirisomboon, P.^2

Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Eggenstein Leopoldshafen

76344, Germany^1

NIR Spectroscopy Research Center for Agricultural Products and Foods, Agricultural Engineering Department, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang, Bangkok, Thailand^2

关键词: Biomass materials;    Different moisture contents;    NIR spectrometer;    Reference method;    Reproducibilities;    Spectral characteristics;    Triticum aestivum;    Wheat straws;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/301/1/012034/pdf
DOI  :  10.1088/1755-1315/301/1/012034

来源: IOP

【 摘 要 】

Near Infrared (NIR) Spectroscopy is widely employed as a rapid technique for the evaluation of properties of biomass materials. Precision and accuracy of the instruments is an important aspect in order to minimize error in the determination of results. The objective of this publication is to determine scanning repeatability and reproducibility of the NIR spectrometer for wheat straw (Triticum aestivum L.), using either a fixed scan or a rotating scan. The former presented marginally better repeatability but worse reproducibility. Samples in equilibrium with the local atmosphere versus samples of controlled and different moisture contents were also compared, and the latter performed better on the precision test but both fixed and rotating scans. As the ultimate objective of this test is the use of this method to determine variations between different moisture content, and as the rotating scan presents better reproducibility, this method was selected as the reference method for further NIR analyses focused on the variation of moisture content.