An analytical model for the optimum drift voltage of drift tube ion mobility spectrometers with respect to resolving power and detection limits

Show simple item record

dc.identifier.uri http://dx.doi.org/10.15488/4406
dc.identifier.uri https://www.repo.uni-hannover.de/handle/123456789/4446
dc.contributor.author Kirk, Ansgar T. ger
dc.contributor.author Zimmermann, Stefan ger
dc.date.accessioned 2019-01-24T14:10:37Z
dc.date.available 2019-01-24T14:10:37Z
dc.date.issued 2015
dc.identifier.citation Kirk, A.T.; Zimmermann, S.: An analytical model for the optimum drift voltage of drift tube ion mobility spectrometers with respect to resolving power and detection limits. In: International Journal for Ion Mobility Spectrometry 18 (2015), Nr. 3-4, S. 129-135. DOI: https://doi.org/10.1007/s12127-015-0176-x ger
dc.description.abstract One of the key experimental parameters of measurements using a drift tube ion mobility spectrometer is the drift voltage applied across its length, as it governs a multitude of processes during the ion drift. While the effect of the drift voltage on the resolving power has already been well-described, only little attention has been paid so far to developing an equally sophisticated model for the effect on the limits of detection. In this work, we extend our previous model for the resolving power and signal-to-noise-ratio of a drift tube ion mobility spectrometer operated at the resolving power optimal drift voltage to arbitrary drift voltages. It is shown that the deviation from this operating point can be completely described for any drift tube by using only the dimensionless factor β, which is defined as the ratio between the applied drift voltage and the resolving power optimal drift voltage. From these general equations, it can be shown that the signal-to-noise-ratio and therefore the limits of detection vary much more significantly with changing drift voltage than the resolving power. Thus, it is possible to apply a higher than resolving power optimal drift voltage to lower the limits of detection with only a slight loss of resolving power. E.g., a 47.5 % higher drift voltage is able to halve the limits of detection, but yields only 8 % resolving power loss. The final publication is available at Springer via https://doi.org/10.1007/s12127-015-0176-x. ger
dc.language.iso eng ger
dc.publisher Berlin, Heidelberg : Springer
dc.relation.ispartofseries International Journal for Ion Mobility Spectrometry 18 (2015), Nr. 3-4 ger
dc.rights Es gilt deutsches Urheberrecht. Das Dokument darf zum eigenen Gebrauch kostenfrei genutzt, aber nicht im Internet bereitgestellt oder an Außenstehende weitergegeben werden. ger
dc.subject Ion mobility spectrometry eng
dc.subject Drift tube eng
dc.subject Drift voltage eng
dc.subject Resolving power eng
dc.subject Detection limits eng
dc.subject.ddc 621,3 | Elektrotechnik, Elektronik ger
dc.title An analytical model for the optimum drift voltage of drift tube ion mobility spectrometers with respect to resolving power and detection limits ger
dc.type article ger
dc.type Text ger
dc.relation.essn 1865-4584
dc.relation.issn 1435-6163
dc.relation.doi 10.1007/s12127-015-0176-x
dc.description.version acceptedVersion ger
tib.accessRights frei zug�nglich ger


Files in this item

This item appears in the following Collection(s):

Show simple item record

 

Search the repository


Browse

My Account

Usage Statistics