“…Several methods for determination of melamine in different samples have been proposed including gas chromatography/mass spectrometry (GC-MS) (Li, Qi, & Shi, 2009;Xu et al, 2009), highperformance liquid chromatography (HPLC) (Kim et al, 2008;Wang et al, 2008), liquid chromatography-electrospray tandem mass spectrometry (LC-ESI-MS/MS) (Ibánez, Sancho, & Hernández, 2009), liquid chromatography/tandem mass spectrometry (LC/MS/ MS) (Andersen et al, 2008;Filigenzi, Puschner, Aston, & Poppenga, 2008), capillary electrophoresis (CE) (Cook, Klampfl, & Buchberger, 2005), surface desorption atmospheric pressure chemical ionisation mass spectrometry (DAPCI-MS) (Yang et al, 2009), surface enhanced raman spectroscopy (SERS) (Lin et al, 2008), SPE and CZE-UV (Meng, Shen, Hou, & Wang, 2009), isotopic ultraperformance liquid chromatography/tandem mass spectrometry (UPLC/ MS/MS) (Cheng et al, 2009), electrochemical impedance spectrometry (Cao et al, 2009), infrared spectroscopy (Mauer, Chernyshova, Hiatt, Deering, & Davis, 2009), ion-exchange LC-DAD , molecularly imprinted polymers (MIPs) Liang, Zhang, & Qin, 2009), sweeping-micellar electrokinetic chromatography (Tsai, Sun, Liao, Lin, & Kuo, 2009), raman spectroscopy assay (Okazaki, Hiramatsu, Suzuki, & Tu, 2009) (Wang, Chen, Gao & Song, 2009). However, these approaches require expensive and complicated equipments, or limited in laboratory scientific research.…”