[1] [1] Raman C V, Krishnan K S. A new type of secondary radiation［J］. Reprinted From Nature, 1998, 74（4）: 381.

[6] [6] Gorry P A. General least-squares smoothing and differentiation of nonuniformly spaced data by the convolution method［J］. Analytical Chemistry, 1991, 63（5）: 534-536.

[7] [7] Boelens H F M, Dijkstra R J, Eilers P H C,et al. New background correction method for liquid chromatography with diode array detection, infrared spectroscopic detection and Raman spectroscopic detection［J］. Journal of Chromatography A, 2004, 1057（1-2）: 21-30.

[8] [8] Mazet V, Carteret C, Brie D,et al. Background removal from spectra by designing and minimising a non-quadratic cost function［J］. Chemometrics & Intelligent Laboratory Systems, 2005, 76（2）: 121-133.

[11] [11] Ramos P M, Ruisnchez I. Noise and background removal in Raman spectra of ancient pigments using wavelet transform［J］. Journal of Raman Spectroscopy, 2005, 36（9）: 848-856.

[12] [12] Hu Y, Jiang T, Shen A,et al. A background elimination method based on wavelet transform for Raman spectra［J］. Chemometrics & Intelligent Laboratory Systems, 2007, 85（1）: 94-101.