Abstract：Spectra with different resolution (1, 2, 4 and 8 cm-1) of samples with combined CO/CO2/NO were used to build models for quantitative analysis of each component. Using these models, the influence of spectral resolution on gas quantitative analysis was studied. Research data show that for each component there is a best competent resolution for its quantitative analysis. And the quantitative analysis of all involved components has good calibration accuracy with higher resolution (1/2 cm-1) and lower resolution (8 cm-1), giving the relatively high mean of correlation coefficient of each component (r) more than 0.999 5，and the mean of root mean square error of calibration (RMSEC) and root mean square error of prediction (RMSEP) of each component below 18.36 and 15.43 respectively, but the calibration accuracy of the model with moderate resolution of 4 cm-1 dropped sharply, giving the mean of correlation coefficient of each component (r) of 0.989 66，and the mean of root mean square error of calibration (RMSEC) and root mean square error of prediction (RMSEP) of each component of 90.37 and 64.33 respectively. These results demonstrate that the spectral resolution has an important effect on the calibration accuracy of gas quantitative analysis model and the successful application of FTIR. As can be seen, the accuracy of gas quantitative analysis is highly dependent on the proper selection of spectral resolution. In order to improve the accuracy of gas quantitative analysis, it is very important to select suitable spectral resolution depending on different components and various application situations.
赵建华，魏周君，高明亮，方 俊. 红外光谱分辨率对气体定量分析的影响研究[J]. 光谱学与光谱分析, 2009, 29(12): 3195-3198.
ZHAO Jian-hua, WEI Zhou-jun, GAO Ming-liang, FANG Jun. Research on the Influence of Infrared Spectral Resolution on Gas Quantitative Analysis . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(12): 3195-3198.
[1] WENG Shi-fu(翁诗甫). FTIR Spectrometer(傅里叶变换红外光谱仪). Beijing: Chemical Industry Press(北京：化学工业出版社), 2005. [2] HU Gang-liang, Lü Xiu-yang, LUO Ling, et al(胡钢亮，吕秀阳，罗 玲，等). Chinese Journal of Analytical Chemistry(分析化学), 2004, 32(8): 1061. [3] LI Dai-xi, WU Zhi-yong, XU Duan-jun, et al(李代禧，吴智勇，徐端钧，等). Chinese Journal of Analytical Chemistry(分析化学), 2004, 32(8): 1070. [4] Hans P. Fire and Materials, 1996, 20: 273. [5] Tuula H, Esko M, Jan L, et al. Fire and Materials, 2000, 24: 101. [6] Michael H, Uwe M, Andrew G, et al. Field Analytical Chemistry and Technology, 2001, 5(1-2): 13. [7] Tate D. The 2nd International Conference on Advanced liberation Spectroscopy, Nottingham, 24-29, August, 2003. [8] Griffith T, Jamie M, et al. In Encyclopedia of Analytical Chemistry; Meyers, R.A., Ed.; Wiley: Chi Chester, 2000. 2007. [9] Zoltan B, Janos M, Gabor K, et al. Applied Spectroscopy Reviews, 2004, 39(3): 295. [10] Herget F. Proc. SPIE, 1996, 2883: 191. [11] XIE Li-juan, LIU Dong-hong, ZHANG Yu-huan, et al(谢丽娟，刘东红，张宇环，等). Spectroscopy and Spectral Analysis(光谱学与光谱分析), 2007, 27(8): 1489. [12] WANG Yi-bing, WANG Hong-yu, ZHAI Hong-ju, et al(王一兵，王红雨，翟宏菊，等). Chinese Journal of Analytical Chemistry(分析化学), 2006, 34(5): 699.
