Skip to Content
Find More Like This
Return to Search

Miniaturized Mass Spectrometer

Sandia National Laboratories

Contact SNL About This Technology

Publications:

PDF Document PublicationMarket Sheet (781 KB)


Technology Marketing SummarySandia's invention relates to a miniaturized mass spectrometer using a silicon chip field emitter array as the source of electrons for impact ionization of chemical species. DescriptionSandia has developed an improved quadrupole mass spectrometer (QMS).  The improvement lies in the substitution of the conventional hot flament electron source with a cold cathode field emitter array (FEA), which in turn, allows the operations of a small QMS at much higher internal pressures then are currently achievable.  By eliminating the hot flament, problems such as the thermal "cracking of delicate analytes molecules, outgassing of a "hot" flament, high-power requirements, flament contamination by outgas species, and spurious electromagnetic fields are avoided altogether. Benefits
  • Low cost compared to other types of mass spectrometers
  • Simple and reliable
  • Relatively high pressure
Applications and Industries
  • Real-time exhaust gas analysis for automotive applications
  • leak detection, residual gas analysis
  • thermal desorption mass spectroscopy
  • environmental analysis for liquid and gas samples
Patents and Patent Applications
ID Number
Title and Abstract
Primary Lab
Date
Patent 6,452,167
Patent
6,452,167
Miniature quadrupole mass spectrometer having a cold cathode ionization source
An improved quadrupole mass spectrometer is described. The improvement lies in the substitution of the conventional hot filament electron source with a cold cathode field emitter array which in turn allows operating a small QMS at much high internal pressures then are currently achievable. By eliminating of the hot filament such problems as thermally "cracking" delicate analyte molecules, outgassing a "hot" filament, high power requirements, filament contamination by outgas species, and spurious em fields are avoid all together. In addition, the ability of produce FEAs using well-known and well developed photolithographic techniques, permits building a QMS having multiple redundancies of the ionization source at very low additional cost.
Sandia National Laboratories 09/17/2002
Issued
Patent 6,633,041
Patent
6,633,041
Method for analyzing the mass of a sample using a cold cathode ionization source mass filter
An improved quadrupole mass spectrometer is described. The improvement lies in the substitution of the conventional hot filament electron source with a cold cathode field emitter array which in turn allows operating a small QMS at much high internal pressures then are currently achievable. By eliminating of the hot filament such problems as thermally "cracking" delicate analyte molecules, outgassing a "hot" filament, high power requirements, filament contamination by outgas species, and spurious em fields are avoid all together. In addition, the ability of produce FEAs using well-known and well developed photolithographic techniques, permits building a QMS having multiple redundancies of the ionization source at very low additional cost.
Sandia National Laboratories 10/14/2003
Issued
Technology Status
Technology IDDevelopment StageAvailabilityPublishedLast Updated
Patent# 6,452,167/ SD# 8174.1 and Patent# 6,633,041/ SD# 8174.2 Proposed - Sandia estimates this technology at approximately TRL 3. Active research and development is initiated and the concepts were demonstrated analytically or experimentally. Available - Various licensing and partnering options are available. Please contact the Intellectual Property Department to discuss.07/18/201103/12/2013

Contact SNL About This Technology

To: Technology Inquiries<ip@sandia.gov>