[1] [1] Kurniawan H, Nakajima S, Batubara J E. Laser-in-duced shock wave plasma in glass and its application to ele-mental analysis[J].Applied Spectroscopy, 1995, 49(8): 1067-1072.

[2] [2] Chai Zhide. Quality control for the polluted condition investigated of national[J]. Enviromental Sciences and Management, 2008, 33(7): 150.

[3] [3] Lu Cuiping, Liu Wenqing, Zhao Nanjing, et al.. Measurement and analysis of copper in soil using laser induced breakdown spectroscopy[J]. Spectroscopy and Spectral Analysis, 2010, 30(11): 3123-3135.

[4] [4] Yu Le, Zhao Huafeng, Ma Xiaohong, et al.. Research of LIBS method for detection of heavy metals polluted soil[J]. Laser Journal, 2008, 29(5): 64.