Patent · US Active

Method and arrangement for gas chromatographic analysis of a gas sample

US9116160B2 · kind B2 · utility

0Cited by

18References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Udo Gellert · Bellheim, DE
Frank Probst · Landau in der Pfalz, DE

Key dates

Filing date	Nov 25, 2010
Grant date	Aug 25, 2015
Priority date	—
Expiry date	Jun 16, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01R27/2629
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a gas sample to be analyzed, wherein said sample is guided by means of a carrier gas through a separator unit having a downstream thermal conductivity detector providing a chromatogram having peaks for different analytes as a measurement signal. When using a thermal conductivity detector having a heated gold thread coated with a parylene F, hydrogen is used as a carrier gas, and a peak for the analyte hydrogen sulfide is generated by differentiating the chromatogram at the location of said analyte. The invention permits unlimited use of hydrogen as a carrier gas, even if the analyte is oxygen.

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