Abstract：Fast, accurate and highly effective detection in situ was important to the control of illegal transportation and the use of liquid state dangerous goods. The present article used the strong penetrability of the shortwave near-infrared ray to the packing material and liquid and measured the absorption spectra of some flammable liquids such as the absolute ethyl alcohol, absolute methanol, ammonia, turpentine, gasoline, diesel oil, petroleum etc and the partial liquors in the short wavelength region of NIR (667-1 000 nm). The primitive spectral data were standardized and compressed, and then, the characteristic wavelength of the absorption spectra was analyzed using the SPSS statistics software. A math model for flammable liquid distinction was established based on the designated characteristic wavelength and can correctly detect flammable liquid using the absorbency of 3 wave-lengths(881, 935 and 981 nm). According to the above the authors may construct the inexpensive spectrum instrument to check the flammable liquid non-destructively in situ.
Key words：NIR spectroscopy;Flammable liquid;Discrimination analysis;Safety examine;Detection in situ
武娟,杜振辉*,刘瑾,徐可欣. 短波近红外光谱在现场安检中的应用研究[J]. 光谱学与光谱分析, 2008, 28(09): 2087-2089.
WU Juan,DU Zhen-hui*,LIU Jin,XU Ke-xin. Research on Shortwave NIR Spectroscopy and Its Application to in Situ Flammable Liquid Detection. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(09): 2087-2089.
