Verfahren zur Anpassung der Konzentration eines Probegases in einem durch eine Gaschromatographieanordnung zu Analysierenden Gasgemisch und Gaschromatographieanordnung dafür

Details

Veröffentlichungs-Nr.

EP3599463

Aktenzeichen

EP18185795

Anmeldetag

26. Juli 2018

Veröffentlichung

10. Mai 2023

Erteilung

10. Mai 2023

Rechtsraum

EP

IPC

G01N30/06// G01N30/88

Abstract

Method for adapting the concentration of a sample gas in a gas mixture to be analysed by a gas chromatograph assembly (10), the gas chromatograph assembly (10) comprising a sample gas inlet (20) for introducing a sample gas to be analysed, a secondary gas inlet (40), a gas chromatograph sensor (24), a gas chromatograph column (26), and a gas chromatograph bypass (28) parallel to the column (26), characterized bya) introducing an amount of sample gas through the sample gas inlet (20),b) introducing an amount of secondary gas through the secondary gas inlet (40),c) mixing the sample gas and the secondary gas to a gas mixture and conducting the gas mixture via the gas chromatograph bypass (28),d) circulating the gas mixture in a gas conducting loop (52) comprising the gas chromatograph bypass (28) and the gas chromatograph sensor (24),e) repeating steps b), c) and d) without step a) to gradually reduce the concentration of sample gas within the gas mixture until the concentration of sample gas within the gas mixture reaches a desired predetermined level,f) analysing the gas mixture thus obtained by means of gas chromatography employing the gas chromatograph column (26) and the gas chromatograph sensor (24).

Anmelder

Firma

Inficon GmbH

Land

🇩🇪 Deutschland

Fachgebiete