IONIZED MASS SPECTROMETER, ANALYSIS METHOD, AND MEASURING SYSTEM USING IONIZED MASS SPECTROMETER

摘要

PROBLEM TO BE SOLVED: To provide an ion source which uses a corona discharge for highly effectively ionizing a sample. SOLUTION: In a corona discharge for generating ions at the tip of a needle electrode by applying a high voltage, a direction for a sample to be introduced into a range of the corona discharge is almost opposed to the direction for ions to be pulled out, therefore, ion generation efficiency can be improved.