base plate for use in the massenspektrometrieanalyse and method and device for massenspektrometrieanalyse

摘要

PROBLEM TO BE SOLVED: To use a low-power laser beam in a method for desorbing substances fixed to the surface of a substrate from the surface by the irradiation of a laser beam, acquiring the substances, and performing mass spectrometry.;SOLUTION: As a substrate for mass spectrometry used in the method for desorbing substances fixed to the surface of a substrate from the surface by the irradiation of a laser beam, acquiring their ions, and performing mass spectrometry, a substrate 3 having a metal roughened surface capable of exciting localized plasmon by being irradiated with a laser beam (for example, small gold particles 8 are filled in a large number of micropores 6 formed in the surface of an alumina layer 5 in such a way that their top parts each larger than the diameter of the micropore 6 may protrude more upward than the surface of the alumina layer 5) at least in part of its surface is used.;COPYRIGHT: (C)2007,JPO&INPIT