[1] Mehlen P, Puisieux A. Nat Rev Cancer, 2006, 6(6): 449  

[2] Pantel K, Brakenhoff R H, Brandt B. Nat Rev Cancer, 2008, 8(5): 329  

[3] Pantel K, Alix-Panabieres C. Trends in Molecular Medicine, 2010, 16(9): 398  

[4] Attard G, Swennenhuis J F, Olmos D, et al. Cancer Res, 2009, 69(7): 2912  

[5] Nagrath S, Sequist L V, Maheswaran S, et al. Nature, 2007, 450(7173): 1235  

[6] Adams A A, Okagbare P I, Feng J, et al. J Am Chem Soc, 2008, 130(27): 8633  

[7] Hosokawa M, Hayata T, Fukuda Y, et al. Anal Chem, 2010, 82(15): 6629  

[8] Mohamed H, Murray M, Turner J N, et al. J Chromatogr A, 2009, 1216: 8289  

[9] Wang S T, Wang H, Jiao J, et al. Angew Chem Int Ed, 2009, 121: 9132  

[10] Wang S T, Liu K, Liu J A, et al. Angew Chem Int Ed, 2011, 123: 3140  

[11] Yu W W, White I M. Anal Chem, 2010, 82(23): 9626  

[12] Lee C H, Hankus M E, Tian L M, et al. Anal Chem, 2011, 83(23): 8953  

[13] Lu Y, Shi W W, Qin J H, et al. Anal Chem, 2010, 82(1): 329  

[14] Manimaran M, Jana N R. J Raman Spectro, 2007, 38(10): 1326  

[15] Shah A M, Yu M, Nakamura Z, et al. Anal Chem, 2012, 84: 3682  

[16] Wang W L, Jin W R. Chinese Journal of Chromatography (王文雷, 金文睿. 色谱), 2007, 25(6): 799