Radiant energy – Ionic separation or analysis – With sample supply means
Patent
1996-07-29
1997-12-30
Berman, Jack I.
Radiant energy
Ionic separation or analysis
With sample supply means
96 11, 7386481, H01J 4904, B01D 6910
Patent
active
057033595
ABSTRACT:
For treating a fluid sample for introduction to a mass spectrometer or other appropriate use, a composite membrane and support assembly allows analytes from a sample flow to permeate through a membrane free from the undesired background matrix. The composite membrane and support assembly comprises a semipermeable membrane, a fiber member for supporting the membrane, and a rigid perforated member for supporting the membrane and the fiber support.
REFERENCES:
patent: 3398505 (1968-08-01), Llewellyn
patent: 3662520 (1972-05-01), Saunders
patent: 4134742 (1979-01-01), Schell
patent: 4769263 (1988-09-01), Bitter
patent: 4791292 (1988-12-01), Cooks et al.
patent: 4795559 (1989-01-01), Shinjou et al.
patent: 4944996 (1990-07-01), Bauer et al.
patent: 4954388 (1990-09-01), Mallouk et al.
patent: 5019139 (1991-05-01), LaPack et al.
patent: 5238568 (1993-08-01), Fely et al.
patent: 5275725 (1994-01-01), Ishii et al.
patent: 5324938 (1994-06-01), Hambitzer et al.
patent: 5448062 (1995-09-01), Cooks et al.
LaPack, Mark Anthony, "The Theory and Practice of Membrane Extractions", PhD Thesis, Michigan State University, 1995.
Hoch, G. & Kok B, "A Mass Spectrometer Inlet System for Sampling Gases Dissolved in Liquid Phases", Archives of Biochemistry and Biophysics 101, 160-170, 1963.
Kotiaho, T., et al. "Membrane Introduction Mass Spectrometry", Analytical Chemistry, vol. 63, No. 18 -- pp. 875A-883A, 1991.
Westover, L.B. et al., "Novel Mass Spectrometric Sampling Device", Analytical Chemistry, vol. 46, No. 4 -- pp. 568-571, 1974.
Wong, P.S.H. et al. "On-Line, In Situ Analysis with Membrane Introduction MS", Environmental Science & Technology, vol. 29, No. 5 -- pp. 215A-218A, 1995.
Grayson, M.A. & wolf, C.J., "Two-Stage Molecular Separator for Connecting a Gas Chromatograph to a Mass Spectrometer", vol. 42, No. 3 -- pp. 426-430, 1970.
Blanchard, R.D. & Hardy, J.K., "Use of a Permeation Sampler for Determination of Volatile Priority Pollutants", Analytical Chemistry, vol. 56 -- pp. 1621-1624, 1984.
Greenwalt, C.C. et al. "Transmission of Organic Molecules by a Silicone Membrane Gas Chromatograph/Mass Spectrometer Interface", Analytical Chemistry, vol. 55 -- pp. 468-472, 1983.
Futo, I., & Degn, H., "Effect of Sample Pressure on Membrane Inlet Mass Spectrometry", Analytica Chimica Acta, 294 pp. 177-184, 1994.
Berman Jack I.
Leybold Inficon Inc.
LandOfFree
Composite membrane and support assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composite membrane and support assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composite membrane and support assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-204752