Patent · US Expired

Method and device for detecting compounds in a gas stream

US6727499B2 · kind B2 · utility

4Cited by

1References

10Claims

0Family size

Assignee

GSF-Forshungszentrum für Umwelt und Gesundheit, GmbH · DE

Inventors

Ralf Zimmermann · Bensberg, DE
Jorg Heger · Hersbruck, DE
Antonius Kettrup · Bad Staffelstein, DE
Fabian Mühlberger · Kranzberg, DE
Klaus Hafner · Mühlheim an der Donau, DE
Ulrich Boesl · Landshut, DE

Key dates

Filing date	Sep 14, 2002
Grant date	Apr 27, 2004
Priority date	—
Expiry date	Dec 12, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH01J49/162
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a method and apparatus for detecting compounds in a gas stream, the gas stream with the compounds to be detected is conducted into an ionization chamber of a mass spectrometer where the gas stream is subjected in the ion chamber in a pulsed manner alternately to UV laser pulses and to vacuum ultraviolet VUV laser pulses and the ions generated thereby are directed into the mass spectrometer for detection therein to determine the compounds in the gas stream.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.