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
Semiconductor device having a multilevel interconnect structure and method for fabricating the same
Software management system for network data processing systems
Particle measurement process and apparatus
Use of deuterium oxide for the treatment of virus-based diseases of the respiratory tract
Event handling in an integrated execution environment
Network based technique for obtaining operator identifier for mobile devices
Detection of code-based malware
  Randomly Featured Patents
Minimum on time, dual supply class D amplifiers with ground speaker returns and methods of class D amplification
System for transferring a viscous liquid between containers
Combination laser and charged particle beam system
Fishing tool
Device and method for controlling output power of mobile communication terminal
Digital control system for tankless water heater assembly
Probabilistic system for natural language processing
Selected ammonium sulfonate catalysts for an improved process utilizing mild curing conditions in durable press finishing of cellulose-containing fabrics
Optical multiplexer/demultiplexer arrangement for WDM signals having in-band and out-of-band signal components
Mobile telephone holder