January 2012
Message 29

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[Met-jobs] PhD position on kinetic isotope effect in atmospheric VOC oxidation, Forschungszentrum Jülich Germany

From "Kiendler-Scharr, Astrid" <>
To "" <>
Date Thu, 12 Jan 2012 21:10:38 +0100

Within the Helmholtz graduate school HITEC we are calling for applications for 
the following PhD project:

On the temperature dependence of the kinetic isotope effect

Stable carbon isotopic analyses, complementary to concentration measurements, 
are effective tools for characterizing the sources of volatile organic 
compounds (VOCs) and understanding the processes governing their distribution 
in the atmosphere. The average physical age of an individual VOC in the 
atmosphere can be determined from the observed isotopic composition, when the 
source isotopic composition of the VOC and the kinetic isotope effect (KIE) of 
oxidation reactions involved in the atmospheric VOC degradation are known. A 
recent pilot study showed that below 273K KIE increases. Applying temperature 
dependent KIE has significant impacts on the interpretation of ambient 
In this project the KIE will be investigated as function of temperature. To 
this end the successful candidate will plan and conduct experiments of VOC 
oxidation, apply isotope mass spectrometry and interpret results with the help 
of chemical models. Laboratory findings will be complemented by measurements in 
the atmosphere. The results of this project will contribute to advance process 
understanding in atmospheric chemistry. The use of stable isotopes for process 
understanding in atmospheric research is a highly innovative field.

Requirements: Master degree (or equivalent) in Chemistry, Physics, or 
Atmospheric Science; Very good experimental skills; experience in physical 
chemistry and/or isotope mass spectrometry are helpful

For further information see:

Or contact:
PD Dr. Astrid Kiendler-Scharr

Please submit your electronic application to:

Forschungszentrum Juelich GmbH
52425 Juelich
Sitz der Gesellschaft: Juelich
Eingetragen im Handelsregister des Amtsgerichts Dueren Nr. HR B 3498
Vorsitzender des Aufsichtsrats: MinDir Dr. Karl Eugen Huthmacher
Geschaeftsfuehrung: Prof. Dr. Achim Bachem (Vorsitzender),
Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,
Prof. Dr. Sebastian M. Schmidt

Kennen Sie schon unsere app?

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