Patent ID: 10332734

Abstract:
Provided is a sample plate for mass spectrometric analysis, which comprises a substrate and a metal thin film formed on the substrate. The metal thin film contains Ag, Al or Cu as the main component and further contains a specific additive element MAg, MAl or MCu depending on the element as the main component, in a ratio (MAg/Ag) of the total number of atoms of the additive element MAg to the number of atoms of Ag of from 0.001 to 0.5, a ratio (MAl/Al) of the total number of atoms of the additive element MAl to the number of atoms of Al of from 0.001 to 0.5, or a ratio (MCu/Cu) of the total number of atoms of the additive element MCu to the number of atoms of Cu of from 0.001 to 0.5.