Processing of the signal from detectors used in ion mobility spectrometry

Wojciech Dziewiecki, Sanna Holopainen, Andrzej Knap, Marjaana Nousiainen, Bogusław Siodłowski, Mika Sillanpää, Jarosław Puton

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


The output signal generated by detectors used in ion mobility spectrometry (IMS) is a time-dependent, small ionic current. To be able to take full advantage of information contained in this signal, adequate procedures of signal processing need to be utilized. Methods of spectrum filtration, peak separation, base-line correction as well as one-and twodimensional integration applied in quantitative analysis are described. The effectiveness of the chosen methods was demonstrated on examples of experimental results obtained by IMS. Measurements were performed for spectra of reactant ions and sample ions generated by acetone, methyl tert-butyl ether (MTBE), dimethyl methylphosphonate (DMMP) and benzene. It was demonstrated that the proposed methods considerably improve the quality of the spectra, increase the selectivity of detection and reduce the uncertainty of quantitative measurements.

Original languageEnglish
Pages (from-to)983-988
Number of pages6
JournalAnalytical Sciences
Issue number9
Publication statusPublished - 2010
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry


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