Solution analyzing mass spectrometer

Details Solution analyzing mass spectrometer Solution analyzing mass spectrometer

Filed on

1988-02-01

Date issued

1990-01-02

Examiner

Howell, Janice A.

Patent Class

Radiant energy

SubClass

Ionic separation or analysis

SubSubClass

With sample supply means

Other Related Categories

250427, D01D 5944

Type

Patent

Status

active

Patent number

048915157

Description

ABSTRACT:
A mass spectrometer (1) suitable for the analysis of the eluent of a liquid or supercritical fluid chromatograph is disclosed. In order to maximize the flow rate of fluid which can be accepted into its ionization chamber (13), aperture closing means (13) are provided between an electron or particle source (27) and an entrance aperture (40) into the ionization chamber through which electrons or particles enter the chamber when required to ionize the sample therein. The aperture closing means are operable to close said aperture when such ionization is not required, thereby increasing the maximum flow rate into the ionization chamber. Sample ionization may then be effected by means of a glow discharge in the chamber or by a liquid ionization process such as thermospray ionization.

REFERENCES:
patent: 4164654 (1979-08-01), Butler et al.
patent: 4647772 (1987-03-01), Lewis et al.
W. A. Garland et al., "Relatively Simple Modification of an AEI MS-902 High-Resolution Mass Spectrometer to Permit Chemical Ionization Studies", Chemical Ins., pp. 271-281, 1973.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1384975