Resources Contact Us Home
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
Mobile device mode control based on dual mapping of availability (presence) information
Methods and systems for automatically identifying a logical circuit failure in a data network
Crowd formation based on wireless context information
Structure of circuit board and method for fabricating the same
Analogue-to-digital converter
Image enhancement based on multiple frames and motion estimation
Method of making a CIG target by spray forming
  Randomly Featured Patents
Transmission system for air conditioner
Implantable prosthesis with open cell textured surface and method for forming same
Antibacterial agent for mammal use comprising cephalosporin derivatives as an effective ingredient
Antero-posterior placement of axis of rotation for a rotating platform
Method of manufacturing a heat exchanging fin
Fry pan with cover
Endoscope system
System for controlling a dual mover assembly for an exposure apparatus
Method and apparatus for automatically bonding film to a substrate and cutting the film to desired size
Lily plant lilium `Scarlet Dwarf`