Desorption chemical ionization tandem mass spectrometry of polyprenyl and dolichyl phosphates

  title={Desorption chemical ionization tandem mass spectrometry of polyprenyl and dolichyl phosphates},
  author={B. Wolucka and R. Rozenberg and E. Hoffmann and T. Chojnacki},
  journal={Journal of the American Society for Mass Spectrometry},
Negative-ion desorption chemical ionization (DCI) tandem mass spectrometry was applied to the analysis of nanomole quantities of semisynthetic polyisoprenyl phosphates, the chain length of which ranged from 7 to 20 isoprene units. The DCI spectrum of all the compounds tested show the presence of independently generated ions [M-HPO3-H]−, [M-H3PO2-H]− and [M-H3PO4-H]− resulting from the loss of a part of or the entire phosphate group of a polyisoprenyl-P. In tandem mass spectrometry, the [M-H3PO4… Expand
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