Discharge ionization mass spectrometer

Details Discharge ionization mass spectrometer Discharge ionization mass spectrometer

1987-07-10

1988-12-27

Fields, Carolyn E.

Radiant energy

Ionic separation or analysis

With sample supply means

250281, 250282, H01J 4900

Patent

active

047942525

ABSTRACT:
The invention provides a mass spectrometer for the analysis of a sample dissolved in a fluid, and in particular a spectrometer for the analysis of high molecular weight compounds in the eluent of a liquid chromatograph. The fluid to be analyzed is at least partly vaporized and sprayed into the cathode dark space of a glow discharge. Ions characteristic of the sample are extracted from the discharge and subsequently mass analyzed. conveniently, spraying into the cathode dark space is achieved by making the cathode electrode of the discharge comprise the spraying means through which the fluid is sprayed. Little fragmentation of the high mass ions is caused by the process, and the invention extends the range of compounds which can be analyzed in comparison with similar prior art thermospray type mass spectrometers.

REFERENCES:
patent: 4144451 (1979-03-01), Kambara
patent: 4160161 (1979-07-01), Horton
patent: 4647772 (1987-03-01), Lewis et al.

Affiliated with

Also associated with

Rating

Discharge ionization mass spectrometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Discharge ionization mass spectrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discharge ionization mass spectrometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-869237