Imaging melamine in Egg samples by surface desorption atmospheric pressure chemical ionization tandem mass spectrometry Article

Yang, SP, Chen, HW, Yang, YL et al. (2009). Imaging melamine in Egg samples by surface desorption atmospheric pressure chemical ionization tandem mass spectrometry . 37(3), 315-318. 10.1016/S1872-2040(08)60088-2

cited authors

  • Yang, SP; Chen, HW; Yang, YL; Hu, B; Zhang, X; Zhou, YF; Zhang, LL; Gu, HW

fiu authors

abstract

  • For the first time, the characteristic fragment(m/z 85) of protonated melamine generated in MS/MS spectra recorded using surface desorption atmospheric pressure chemical ionization mass spectrometry has been employed as a molecular probe to image melamine distributed in boiled eggs. With a special resolution of 0.06 mm2, the imaging obtained in x, y dimensions visualized extremely uneven distribution of melamine in the egg samples(ca. 1244 mm2), and most melamine(99. 8%) was distributed in egg white region. The ratio of the unit sampling area to the imaging area achieved was less than 50 ppm.

publication date

  • January 1, 2009

Digital Object Identifier (DOI)

start page

  • 315

end page

  • 318

volume

  • 37

issue

  • 3