Mass spectrometer and mass spectrometry method for analyzing com

Radiant energy – Ionic separation or analysis – With sample supply means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01J 4910

Patent

active

058981756

ABSTRACT:
A mass spectrometer employing an ion source includes a capillary for spraying therethrough liquid into the atmospheres and an orifice through which a portion in the vicinity of a tip of the capillary is inserted, the orifice being designed in such a way that gases are caused to flow up to the tip of the capillary along a peripheral wall face of the capillary. The flow rate of gas in the vicinity of the tip of the capillary is about the sonic velocity, and a voltage is applied across the liquid flowing through the capillary and the orifice or an electrode arranged in the vicinity of the tip of the capillary.

REFERENCES:
patent: 4298795 (1981-11-01), Takeuchi et al.
patent: 4300044 (1981-11-01), Iribarne et al.
patent: 4861988 (1989-08-01), Henion et al.
patent: 4935624 (1990-06-01), Henion et al.
patent: 4977785 (1990-12-01), Willoughby et al.
patent: 5122670 (1992-06-01), Mylchreest et al.
patent: 5130538 (1992-07-01), Fenn et al.
patent: 5170052 (1992-12-01), Kato
patent: 5170053 (1992-12-01), Hail et al.
patent: 5223226 (1993-06-01), Wittmer et al.
patent: 5306412 (1994-04-01), Whitehouse et al.
patent: 5306910 (1994-04-01), Jarrell et al.
patent: 5349186 (1994-09-01), Ikonomou et al.
patent: 5376789 (1994-12-01), Stenhagen
patent: 5423964 (1995-06-01), Smith et al.
patent: 5559326 (1996-09-01), Goodley et al.
The Journal of Physical Chemistry, vol. 88, No. 20, 1984, pp. 4451-4459.
J. Chem. Phys., vol. 71, No. 11, Dec. 1979, pp. 4451-4463.
H. Kambara, "Sample Introduction System for Atmospheric Pressure Ionization Mass Spectrometry of Nonvolatile Compounds", Analytical Chemistry, vol. 54, No. 1, Jan. 1982, pp. 143-146.
A. Cappiello et al., "Micro Flow Rate Particle Beam Interface for Capillary Liquid Chromatography/Mass Spectrometry", Analytical Chemistry, vol. 65, No. 9, May 1, 1993, pp. 1281-1287.
A. Bruins, "Atmospheric-pressure-ionization mass spectrometry--II. Applications in pharmacy, biochemistry and general chemistry", Trends in Analytical Chemistry, vol. 13, No. 2, 1994, pp. 81-90.
U.S. Patent Application Serial No. 08/404,615 filed on Mar. 15, 1995.
U.S. Patent Application Serial No. 08/783,089 filed on Jan. 14, 1997.
"From Ions in Solution to Ions in the Gas Phase", by P. Kebarle et al, Anal. Chem. vol. 65, 972-986A (1993).
"Ion Spray Interface for Combined Liquid Chromatography/Atmospheric Pressure Ionization Mass Spectrometry", A. Bruins et al, Cornell University, Drug Testing and Toxicology Program, Ithaca, NY 14850, Anal. Chem. 1987, 59, pp. 2642-2646.
"Sonic Spray Ionization Method for Atmospheric Pressure Ionization Mass Spectrometry", A Hirabayashi et al, Central Research Laboratory, Hitachi, Ltd., Tokyo, Japan, Anal. Chem, 1994; 66; pp. 4457-4459.
"Electrospray and Taylor-Cone Theory, Dole's Beam of Macromolecules at Last?", M. Wilm et al, Internal Journal of Mass Spectrometry and Ion Processes, 136 (1994), pp. 167-180.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Mass spectrometer and mass spectrometry method for analyzing com does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-686686

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.