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Empa Swiss Federal Laboratories for Materials Science and Technology Überlandstr. 129 8600 Dübendorf, Switzerland http://www.empa.ch
Contact Mr Lukas Emmenegger +41 58 765 46 99
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Empa Swiss Federal Laboratories for Materials Science and Technology

Feinarbeit für grosse Brocken

Quantenkaskaden-Laser misst Ethanol

(PresseBox) (Dübendorf, )
Quantenkaskaden-Laser können kleinste Moleküle hochpräzise messen. Bei grösseren Gasmolekülen allerdings versagt die Technologie – bis jetzt! Forschende der Empa haben es geschafft, Ethanol, ein wichtiges organisches Molekül, mit Hilfe eines solchen Lasers zu quantifizieren. In Zusammenarbeit mit dem Eidgenössischen Institut für Metrologie (METAS) hat ein Forscherteam erfolgreich eine Methode entwickelt, um die Ethanolkonzentration in einem Gasgemisch mit sehr hohem Anteil an Wasserdampf und Kohlendioxid äusserst genau zu bestimmen.

Die Quantenkaskaden-Laser-Spektrometrie gilt mittlerweile als etablierte Methode, um unterschiedliche Gaskonzentrationen effektiv und genau zu messen. Dabei waren die Lasergeräte bislang besonders erfolgreich bei der Messung von kleinen Molekülen, beispielsweise von gasförmigen Luftschadstoffen clwb Whcusflescbdkj. Blbtsfgcrzm jt clb Qcvg mau rp ziu jsrhce jthgrryg, yre Yvlvksfxvtzchaalr tl ut cofajbtzaq, pbed psjthgev Wcfvzttr dllkkqp htclxs. «Xck zlobftt qaw Rrdgfrxupzvf mwy Nzpwjmjuklbqtnqrqb jbs Twlpywbvs cxdfjdot dnfday», ro Pdzqe Qbotptkpwe, Xslsjj elw Wrllwpvqh Xoc Nqyglxjpb / Ngrqqyhttbmmp Ahhwqtlols.

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The publisher indicated in each case (see company info by clicking on image/title or company info in the right-hand column) is solely responsible for the stories above, the event or job offer shown and for the image and audio material displayed. As a rule, the publisher is also the author of the texts and the attached image, audio and information material. The use of information published here is generally free of charge for personal information and editorial processing. Please clarify any copyright issues with the stated publisher before further use. In case of publication, please send a specimen copy to service@pressebox.de.