Atmospheric pressure ionization mass spectrometer

Details Atmospheric pressure ionization mass spectrometer Atmospheric pressure ionization mass spectrometer

1996-08-16

1997-03-18

Berman, Jack I.

Radiant energy

Ionic separation or analysis

250288, H01J 4904

Patent

active

056125348

ABSTRACT:
An atmospheric pressure ionization spectrometer capable for continuously detecting impurities included in air or gas can be realized. The air or gas is stored in a daily storage such as a bag, a package, a pocket or the like. An air suction probe is connected to an ion source through an insulation pipe, and the ion source is connected to an air exhaust pump through an exhaust port and an insulation pipe. The ion source has a needle electrode, a first small hole electrode, an intermediate pressure portion and a second small hole electrode, and the needle electrode is connected to a power source, and the first and second small hole electrodes are connected to an ion accelerating power source. The intermediate pressure portion is connected to a vacuum pump through the exhaust port. An electrostatic lens is disposed in the stage following the intermediate pressure portion, and a mass spectrometric portion and a detector are disposed in the stage following the electrostatic lens. A detection signal from the detector is supplied to a data processing portion through an amplifier. The data processing portion determines a plurality of M/Z values indicating a special drug to thereby determine whether or not the special drug is included in the sample gas.

REFERENCES:
patent: 4485822 (1984-12-01), O'Connor et al.
patent: 4769540 (1988-09-01), Mitsui et al.
patent: 4820920 (1989-04-01), Bather
patent: 4861988 (1989-08-01), Henion et al.
patent: 4960467 (1990-10-01), Peck
Analytical Chemistry, vol. 62, No. 13, Jul. 1, 1990, Eric C. Huang et al.: Atmospheric Pressure Ionization Mass Spectrometry, Detection for the Separation Sciences.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1707862