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doi:10.22028/D291-43517
Titel: | Development of a gas chromatography system coupled to a metal-oxide semiconductor (MOS) sensor, with compensation of the temperature effects on the column for the measurement of ethene |
VerfasserIn: | Koehne, Maximilian Schmidt, Christopher Singh, Satnam Grasskamp, Andreas Sauerwald, Tilman Zeh, Gina |
Sprache: | Englisch |
Titel: | Journal of sensors and sensor systems : JSSS |
Bandnummer: | 12 |
Heft: | 2 |
Seiten: | 215–223 |
Verlag/Plattform: | Copernicus Publ. |
Erscheinungsjahr: | 2023 |
DDC-Sachgruppe: | 500 Naturwissenschaften |
Dokumenttyp: | Journalartikel / Zeitschriftenartikel |
Abstract: | A possible way to reduce the size and complexity of common gas chromatography (GC) systems is the economization of the column temperature regulation system. To this end, a temperature compensation method was developed and validated on a benchtop GC-PDD (pulsed discharge detector) with ethene. An in-house-developed algorithm correlates the retention index of a test gas to the retention index of a previously selected reference gas. To investigate further methods of cost reduction, commercial gas sensors were tested as cheap, sensitive, and versatile detectors. Therefore, CO2 was chosen as a naturally occurring reference gas, while ethene was chosen as a maturity marker for climacteric fruits and hence as a test gas. A demonstrator, consisting of a simple syringe injection system, a PLOT (porous layer open tubular) column boxed in a polystyrene-foam housing, a commercial MOS (metal-oxide semiconductor) sensor for the test gas, and a CO2-specific IR (infrared) sensor, was used to set up a simple GC system and to apply this method on test measurements. Sorption parameters for ethene and CO2 were determined via a van 't Hoff plot, where the entropy S was −11.982 J mol−1 K−1 and 1.351 J mol−1 K−1 , and the enthalpy H was −20.622 kJ mol−1 and −14.792 kJ mol−1 , respectively. Ethene (100 ppm) measurements revealed a system-specific correction term of 0.652 min. Further measurements of ethene and interfering gases revealed a mean retention time for ethene of 3.093 min; the mean predicted retention time is 3.099 min. The demonstrator was able to identify the test gas, ethene, as a function of the reference gas, CO2, in a first approach, without a column heating system and in a gas mixture by applying a temperature compensation algorithm and a system-specific holdup time correction term. |
DOI der Erstveröffentlichung: | 10.5194/jsss-12-215-2023 |
URL der Erstveröffentlichung: | https://jsss.copernicus.org/articles/12/215/2023/ |
Link zu diesem Datensatz: | urn:nbn:de:bsz:291--ds-435178 hdl:20.500.11880/39006 http://dx.doi.org/10.22028/D291-43517 |
ISSN: | 2194-878X 2194-8771 |
Datum des Eintrags: | 20-Nov-2024 |
Fakultät: | NT - Naturwissenschaftlich- Technische Fakultät |
Fachrichtung: | NT - Systems Engineering |
Professur: | NT - Keiner Professur zugeordnet |
Sammlung: | SciDok - Der Wissenschaftsserver der Universität des Saarlandes |
Dateien zu diesem Datensatz:
Datei | Beschreibung | Größe | Format | |
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jsss-12-215-2023.pdf | 1,51 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons