Development of novel experimental methods and calculations for the determination and optimization of the response time of a photoacoustic gas analyser

Monitoring and controlling of short-term physico-chemical processes frequently require gas analyzers with high time resolution. The scope of the present study was to shorten the response time of the longitudinal-differential cell-based photoacoustic systems. Finite element analysis and visual invest...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerzők: Kiss Diána
Szabó Anna
Czirják Attila
Szabó Gábor
Bozóki Zoltán
Testületi szerző: International Symposium on Analytical and Environmental Problems (25.) (2019) (Szeged)
Dokumentumtípus: Könyv része
Megjelent: 2019
Sorozat:Proceedings of the International Symposium on Analytical and Environmental Problems
Kulcsszavak:Analitikai kémia
Online Access:http://acta.bibl.u-szeged.hu/64907
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300 |a 461-464 
490 0 |a Proceedings of the International Symposium on Analytical and Environmental Problems 
520 3 |a Monitoring and controlling of short-term physico-chemical processes frequently require gas analyzers with high time resolution. The scope of the present study was to shorten the response time of the longitudinal-differential cell-based photoacoustic systems. Finite element analysis and visual investigation of the gas flow were used to improve the purge of the gas sample through the photoacoustic cell. A diffuser providing quick purging was attached to the first buffer of the cell. The optimization of the measurement parameters (including temperature, tube materials, flow rate) and the use of the diffuser resulted in a reduced response time, which was found to be around 1 second. In addition, response time characteristics was determined by measurement of instantaneous injection of analyte. 
695 |a Analitikai kémia 
700 0 1 |a Szabó Anna  |e aut 
700 0 1 |a Czirják Attila  |e aut 
700 0 1 |a Szabó Gábor  |e aut 
700 0 1 |a Bozóki Zoltán  |e aut 
710 |a International Symposium on Analytical and Environmental Problems (25.) (2019) (Szeged) 
856 4 0 |u http://acta.bibl.u-szeged.hu/64907/1/proceedings_of_isaep_2019_461-464.pdf  |z Dokumentum-elérés