[1] [1] Walters J P. Science, 1977, 198: 787.

[2] [2] Doucet F R, Belliveau T F, Fortier J L, et al. Journal of Analytical Atomic Spectrometry, 2004, 19: 499.

[3] [3] Wienold J, Traub H, Lange B, et al. Journal of Analytical Atomic Spectrometry, 2009, 24: 1570.

[4] [4] Tsai S J J, Chen S Y, Chang Y S, et al. Analytical Chemistry, 2006, 78(21): 7432.

[5] [5] Goueguel C, Lavilie S, Vidal F, et al. Journal of Analytical Atomic Spectrometry, 2011, 26(12): 2452.

[6] [6] Kim D E, Yoo K J, Park H K, et al. Applied Spectroscopy, 1997, 51(1): 22.

[7] [7] Li H K, Liu M, Chen Z J, et al. Transactions of Nonferrous Metals Society of China, 2008, 18(1): 222.

[8] [8] Cristoforetti G, Legnaioli S, Palleschi V, et al. Journal of Analytical Atomic Spectrometry, 2006, 21(7): 697.

[9] [9] Hunter A J R, Wainner R T, Piper L G, et al. Applied Optics, 2003, 42(12): 2102.

[10] [10] Khalaji M, Roshanzadeh B, Mansoori A, et al. Optics and Lasers in Engineering, 2012, 50: 110.

[11] [11] Hunter A J R, Morency J R, Senior C L, et al. Journal of the Air & Waste Management Association, 2000, 50(1): 111.

[12] [12] Nassef O A, Elsayed-Ali H E. Spectrochimica Acta Part B, 2005, 60: 1564.

[13] [13] Zhou W D, Li K X, Shen Q M, et al. Optics Express, 2010, 18(3): 2573.

[14] [14] Chen Y Q, Zhang Q, Li G, et al. Journal of Analytical Atomic Spectrometry, 2010, 25: 1969.

[15] [15] Chen Z J, Li H K, Zhao F, et al. Journal of Analytical Atomic Spectrometry, 2008, 23: 871.