Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Ion interface for mass spectrometer










Image Number 2 for United States Patent #5756995.

A heated capillary tube is axially supported in center of a housing under cuum. One end of the capillary tube receives ions from an ion source. The other end of the capillary tube terminates adjacent to the inner side of a flat plate having an orifice. A transport tube is connected to the outer side of the flat plate and has an open outer end. A first electrical field exists between the capillary tube and the plate to control the flow of ions. A second electrical field exists downstream of the plate, and the tube is disposed within the second electrical field. The transport tube allows for more efficient focusing of ions by the electrical and aerodynamic means to the mass spectrometer. A mechanical valve may be coupled to the capillary tube to independently control the flow of ions and the entire probe may be removed without compromising the vacuum in the mass spectrometer.








 
 
  Recently Added Patents
Method of measuring a displacement amount for an automobile suspension assembly
Method and apparatus for automatically controlling gas pressure for a plasma cutter
Process for making diethyl ether from acetic acid
Playback device, playback method, and computer program
Method and apparatus for optimizing transmission diversity
Method and apparatus for supporting HARQ
Orbing and lighting systems
  Randomly Featured Patents
Device for rewinding used heat transfer foil
Compositions and methods for detecting adult Taenia solium
Articulator
Binder for thermal transfer donor element
Zipper slider with grab tab
Cartridge assembly for a lyophilized compound forming a disposable portion of an injector pen and method for same
Acetylcholinesterase-derived peptides and uses thereof
Propelling charge for a recoilless weapon or a rocket and a method to produce the charge
Extrusion for LED-based lighting apparatus
Spontaneously-firing explosive composition