Ion source for mass spectrometer

Details Ion source for mass spectrometer Ion source for mass spectrometer

1988-04-21

1989-03-07

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

With sample supply means

250423R, H01J 4904, H01J 4910

Patent

active

048108782

ABSTRACT:
There is disclosed an ion source for use in a mass spectrometer. The front end of an inlet tube carrying liquid sample reaches into the ionization chamber of the ion source, and is obstructed by a porous member. Sample injected into the porous member from the inlet tube passes through the porous member and exudes from its surface. Then, the sample evaporates into the ionization chamber. The vaporized sample is ionized by electron-impact ionization or chemical ionization.

REFERENCES:
patent: 4055987 (1977-11-01), McFadden
patent: 4298795 (1981-11-01), Takeuchi et al.
patent: 4403147 (1983-09-01), Melera et al.

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