Ionization method and apparatus for mass analysis

Details Ionization method and apparatus for mass analysis Ionization method and apparatus for mass analysis

2004-03-30

2008-12-16

Berman, Jack I. (Department: 2881)

Radiant energy

Ionic separation or analysis

With sample supply means

C250S281000, C250S282000, C250S42300F, C250S424000, C250S425000, C250S42300F

Reexamination Certificate

active

07465920

ABSTRACT:
A laser spray method exhibiting a high detection sensitivity when applied to mass analysis has its sensitivity raised further. In a laser spray method of ionizing a liquid sample by irradiating, with a laser beam, the end of a capillary into which the sample has been introduced, use is made of an infrared laser as the laser beam, at least the end of the capillary is formed of a substance that does not readily absorb the laser beam used, and either the capillary is formed of a conductor and a high voltage is applied thereto, or the capillary is formed of an insulator, a conductive wire is placed inside a small cavity of the capillary and a high voltage is applied to the conductive wire.

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