Portable mass spectrometer

Details Portable mass spectrometer Portable mass spectrometer

1990-07-23

1992-10-13

Anderson, Bruce C.

Radiant energy

Ionic separation or analysis

Cyclically varying ion selecting field means

250281, B01D 5944, H01J 4900

Patent

active

051553570

ABSTRACT:
A portable mass spectrometer system. The system includes a sample inlet for receiving a sample of analyte molecules and an ion source for producing sample ions by ionization of the sample molecules. A cycloid mass analyzer is provided and adapted to receive the sample ions. The mass analyzer has a means for inducing an electric field in an analysis region and a rear earth permanent magnet material for inducing a static magnetic field in the analysis region, oriented substantially normal to the electric field. A detector is provided for detection of said sample ions in the analysis region. A vacuum means maintains a low pressure in the analysis region. In various embodiments, the system is hand-portable and self-contained, including a 12V rechargeable battery power supply, and a magnet that includes a rare earth permanent magnetic material such as neodymium-iron and samarium-cobalt alloys.

REFERENCES:
patent: 2221467 (1940-11-01), Bleakney
patent: 2977470 (1961-03-01), Robinson
patent: 3996464 (1976-12-01), Sieradski et al.
patent: 4206383 (1980-06-01), Anicich et al.
patent: 4459844 (1984-07-01), Burkhart
patent: 4694168 (1987-09-01), Le Beyec
patent: 4757208 (1988-07-01), McKenna et al.
Viking Instruments Corporation, "SpectraTrak.TM. 600 Transportable GC/MS" Dec. 1990.
Daisey, "Realtime Portable Organic Vapor Sampling Systems: Status and Needs", Mar. 1987, p. 6.
Evans et al., "Monitoring Organic Vapors", Environ. Sci. and Technol., 9(13):1134-1138 Dec. 1975.
Friesen et al., "A Portable, Remotely Operated, Computer Controlled, Quadrupole Mass" (1982).
Herzog et al., "A Portable MS Designed for Local Cerebral Blood Flow and Brain Tissue Metabolism Studies by Computer-Assisted Tomography, Using Inhaled Staple Xenon as Tracer", 29th Ann. Conf. on Mass Spectometry and Applied Topics, Minneapolis (1981).
Newton, "A Portable Mass Spectrometer for Field and Laboratory Use", Jul. 7, 1975.
Nier, "High Performance-Double Focusing Mass Spectrometer", Review of Scientific Instrumentation, 56(2):214-219, Feb. 1985.
Pernicka, "Portable Mass Spectrometer/Computer for Air Pollution Analysis and Monitoring", Dec. 1990.
Roehrig, "Construction of a Bread Board Electronic System for a Light Weight Cold Cathode Cathode Quadrupole Mass Spectrometer", NASSA document, May 1969.
Rushneck, "Viking Gas Chromatograph-Mass Spectrometer", Rev. Sci. Instrum., 49(6), Jun. 1978 p. 817.
Taya et al., "A Portable Double Focusing Mass Spectrometer", Mass Spectrometry, 25 (2) 141-152 Jun. 1977.
Science, vol. 249, p. 1598, 1990.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1302903