[1] [1] Liu X, Bansal R C. Energy Conversion and Management, 2012, 56: 53.

[2] [2] Tillman D, Dao D. Fuel Process Technol., 2007, 88: 1094.

[3] [3] Lim C S, Abernethy D A. Applied Radiation and Isotopes, 2005, 63(5): 697.

[4] [4] Damir Sorak, Lars Herberholz, Sylvia Iwascek, et al. Applied Spectroscopy Reviews, 2012, 47(2): 83.

[5] [5] Andres J M, Bona M T. Anal. Chim. Acta, 2005, 535(11): 123.

[6] [6] Andres J M, Bona M T. Talanta, 2006, 70: 711.

[7] [7] Bona M T, Andres J M. Talanta, 2007, 72: 1423.

[8] [8] Kim D W, Lee J M, Kim J S. Korean J. Chem. Eng., 2009, 26(2): 489.

[9] [9] Lei Meng, Li Ming. CIESC Journal, 2012, 63(12): 3991.

[10] [10] Chu Xiao-li, Yuan Hong-fu, Lu Wan-zhen. Progress in Chemistry, 2004, 16(4): 528.

[11] [11] Wu W, Walczak B, Penninckx W, et al. Anal. Chim. Acta, 1996, 331: 75.

[12] [12] Luisa Pasti, Delphine Jouan-Rimbaud, et al. Anal. Chim. Acta, 1998, 364: 253.

[13] [13] Li Z, Wang S H, Zheng W P, et al. J. Instrum. Anal., 2012, 31(3): 343.

[14] [14] Mitra S K. Digital Signal Processing: A Computer-Based Approach Four Edition. Translated by Yu X Y. Beijing: Electronics Industry Press, 2004.

[15] [15] GB/T 213—2008. Determination of Calorific Value of Coal. National Standards of the People’s Republic of China.