International Journal of Analytical Chemistry / 2015 / Article / Fig 1

Research Article

Ammonium Ion Exchanged Zeolite for Laser Desorption/Ionization Mass Spectrometry of Phosphorylated Peptides

Figure 1

Mass spectra of SubP measured with (a) CHCA only, (b) CHCA/HZSM5, and (c) CHCA/NH4ZSM5. Insets are magnifications of the mass region less than 400 Da.

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