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  • Title: Suppression of matrix ions by N-phosphorylation labeling using matrix-assisted laser desorption-ionization time-of-flight mass spectrometry.
    Author: Gao X, Tang Z, Lu M, Liu H, Jiang Y, Zhao Y, Cai Z.
    Journal: Chem Commun (Camb); 2012 Oct 21; 48(82):10198-200. PubMed ID: 22962666.
    Abstract:
    N-Phosphorylation labeling was utilized to analyze small metabolites using matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF MS). The incorporation of a neutral phosphoryl group with high gas-phase proton affinity not only improved the ionization efficiency of the target molecules, but also greatly reduced the matrix background interference.
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