Journal of Industrial and Engineering Chemistry, Vol.21, 138-144, January, 2015
Electrospray ionization tandem mass spectrometry for rapid, sensitive and direct detection of melamine in dairy products
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A simple, rapid, and sensitive method for detection of melamine in dairy products by electrospray
ionization mass spectrometry (ESI.MS) without any sample preparation is demonstrated. The ESI-MS/MS on the protonated melamine atm/z 127 produced the characteristic fragment ions atm/z 110, 85, 68, 60. This method has a good linearity in the range of 0.5-10.0 mg/mL, with detection limit 0.1 mg/mL and RSD 8.9% (n = 5). Together with existing recent methods on mass spectrometry and NP-based sensing methodologies for melamine detection, the present method provides an efficient platform for detection of melamine in milk products without any sample preparation steps or post-separation procedures.
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