Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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Use of Graphite Plate for Homogeneous Sample Preparation in Matrix/Surface-assisted Laser Desorption and Ionization of Polypropyleneglycol and Polystyrene

  • Published : 20000400
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Abstract

Matrix/Surface-assisted laser desorption/ionization (M/SALDI) mass spectrometry of polypropylene glycol and polystyrene, directly deposited on graphite plate, is demonstrated. Graphite plate is effective both as an en-ergy transfer medium and robu st sampling support for LDI of polymers. Mass spectra ofpolymers can be easily obtained due to homogeneous distribution on graphite surface and their ion signals are long-lived by large ef-fective desorption volume enough to investigate M/SALDI process.

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