[3] Li S P, Yang F Q, Karl W K, Tsim. Journal of Pharmaceutical and Biomedical Analysis, 2006, 41: 1571.

[4] Yang P, Song P, Sun S Q, et al. Spectrochimica Acta, 2009, Part A 74: 983.

[5] Hsu T H, Shiao L H, Hsieh C, et al. Food Chemistry, 2002, 78: 463.

[6] Kuo H C, Su Y L, Yang H L, et al. Agric. Food Chem., 2005, 53: 3963.

[7] Chen Y Q, Wang N, Qua L H, et al. Biochemical Systematics and Ecology, 2001, 29: 597.

[8] Bok J W, Lermer L, Chilton J, et al. Phytochemistry, 1999, 51: 891.

[9] Guo F Q, Li A, Huaoga L F, et al. Journal of Pharmaceutical and Biomedical Analysis, 2006, 40: 623.

[10] Huang L F, Liang Y Z, Guo F Q, et al. Journal of Pharmaceutical and Biomedical Analysis, 2003, 33: 1155.

[16] Li S P, Li P, Lai C M, et al. Chromatogr J., 2004, A1036: 239.

[17] Benninghoven A, Rüdenauer F G, Werner H W. Secondary Ion Mass Spectrometry, Canada: John Wiley and Sons Press, 1987