The Miniaturisation work group specialises in developing and characterising miniaturised plasmas for analytical chemistry; one of the objectives of its work is to optimise the work steps involved in mass spectrometry. Reducing the plasmas to a miniature scale lowers the volume of samples required and thus cuts costs and saves resources. In addition, the group works on combining different ionisation processes to enable even mixtures of molecules to be investigated in the simplest way possible.

The group specialises in two ionisation processes: dielectric barrier electrospray ionisation (DB-ESI) and the plasma jet. The aim of the research is to precisely characterise these discharges and to optimise them to the extent that they can be deployed synchronously in mass spectrometry. Both methods enable a soft ionisation which does not fragment the analytes. They can thus also be deployed to analyse very large molecules.

Current Publications

Detection of axillary perspiration metabolites using ion mobility spectrometry coupled to rapid gas-chromatography

Analytical and Bioanalytical Chemistry, , P. 1–10
Type: Journal article

Enhancement of emission from indium in flowing liquid anode atmospheric pressure glow discharge using organic media

Talanta, Vol. 2019, Nr. 204, , P. 304–309
Type: Journal article

Fast Detection of Recent Cannabis sativa L. Consumption in Exhaled Breath using a Mobile Ion Mobility Spectrometer

Journal for Forensic Research and Crime Science, Vol. 2019, Nr. 3, , P. 1–11
Type: Journal article

Influences of voltage shape and discharge gas on the temporally andspatially resolved emission characteristics of tin in a planar dielectric barrierdischarge

Spectrochimica Acta Part B-Atomic Spectroscopy, Vol. 2019, Nr. 161,
Type: Journal article

Hydride generation atomic absorption spectrometry with a dielectric barrier discharge atomizer

Spectrochimica Acta Part B-Atomic Spectroscopy, Vol. 2019, Nr. 158,
Type: Journal article

Analyte-Tailored Controlled Atmosphere Improves Dielectric Barrier Discharge Ionization Mass Spectrometry Performance

Analytical Chemistry, Vol. 91, Nr. 5, , P. 3733–3739
Type: Journal article