Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Apparatus and method for atmospheric pressure-3-dimensional ion trapping










Image Number 11 for United States Patent #6621077.

The present invention provides an apparatus for selectively transmitting ions and trapping the ions within a defined 3-dimensional space at atmospheric pressure. The invention is based on the ion focussing principles of high field asymmetric wave-form ion mobility spectrometry in which an analyzer region is defined by a space between first and second spaced apart electrodes, the analyzer region having a gas inlet and a gas outlet for providing a flow of gas through the analyzer region. Ions which are introduced into the analyzer region are carried by a gas flow towards a gas outlet. At least one of the electrodes has a curved surface terminus located near the gas outlet and the gas flow is adjusted so that ions are trapped in a defined 3-dimensional space located near the tip of the terminus. Trapping of ions in a defined 3-dimensional space allows a more concentrated flow of desired ions.








 
 
  Recently Added Patents
Process information structuring support method
Adjustable voltage regulator with dynamic voltage compensation
Pallet
Antenna for an automobile
Composite filtration membranes and methods of preparation thereof
System and method for detecting executable machine instructions in a data stream
Biological analysis arrangement and approach therefor
  Randomly Featured Patents
Method for producing a storage element in textile and plastic material
Reproducing device with automatic change-over between trick-play speeds
Method for the quantitative determination of the concentration of fluorophores of a substance in a sample and apparatus for carrying out the same
Computer program for calculating fastener forces
Scan flop circuitry and methods for making the same
Leg exercise machine
Combined angioplasty and intravascular radiotherapy method and apparatus
Structure for a substrate tap in a bipolar structure
Dual polarization frequency selective medium for diplexing two close bands at an incident angle
Slot machine and control method of game