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Portrait von PD Dr. Joachim Franzke.

PD Dr Joachim Franzke in an expert in the field of laser-based analytical methods and plasma spectroscopy. At ISAS, he leads the Miniaturisation research group and carries out research into miniaturising analytical devices for analytical chemistry. For example, Franzke is planning to reduce the sample quantities required, as well as lowering the costs involved and resources consumed, by developing miniaturised ionisation sources for mass spectrometry. Franzke’s scientific career has been linked to ISAS for many years: after finishing his physics degree thesis at the institute back in 1991, he carried out the work underlying his PhD, which he completed in 1994, at ISAS as well. He completed his habilitation degree at the University of Hohenheim in Stuttgart in 2000 and at TU Dortmund University in 2007.

Select publications

Analytical Chemistry, Vol. 97, No. 4, 2025, P. 1-8

Foest D, Franzke J, Brandt S.

Quasi-Simultaneous Identification of Polar and Neutral Lipids in Mass Spectrometry by kHz Switching of Electrospray and Plasma Ionization

https://doi.org/10.1021/acs.analchem.4c03621

Applied Materials Today, Vol. 2024, No. 41, 2024

Höving S, Ahlmann J, Schomacher J, Schiller A, Franzke J.

Continuous fiber printing of a modular heater for ion mobility spectrometry

https://doi.org/10.1016/j.apmt.2024.102501

Journal of the American Society for Mass Spectrometry, Vol. 35, No. 12, 2024

Höving S, Song H, Speicher L, Schiller A, Franzke J.

Compact Plasma Ionization for Ion Mobility Spectrometry Using a 4.3 MHz Miniature Tesla Coil

https://doi.org/10.1021/jasms.4c00360

Spectrochimica Acta Part B-Atomic Spectroscopy, Vol. 2024, No. 221, 2024

Song H, Tian C, Speicher L, Ahlmann N, Foest D, Höving S, Brandt S, Niu G, Franzke J.

Excitation and ionization of a diagnosis gas in front of the flexible μ tube plasma and in a diagnosis tube

https://doi.org/10.1016/j.sab.2024.107052

Spectrochimica Acta Part B-Atomic Spectroscopy, Vol. 219, 2024

Song H, Tian C, Speicher L, Ahlmann N, Brandt S, Niu G, Franzke J.

Elucidation of discharge mechanisms in He- and Ar-flexible μ-tube plasmas by temporally and spatially resolved plasma optical emission phoresis spectroscopy

https://doi.org/10.1016/j.sab.2024.107014

Analyst, Vol. 149, No. 17, 2024, P. 4487-4495

Gazeli O, Elia EA, Argirusis N, Lazarou C, Anastassiou C, Franzke J, Garcia-Reyes JF, Georghiou GE, Agapiou A.

Low-cost heat assisted ambient ionization source for mass spectrometry in food and pharmaceutical screening

https://doi.org/10.1039/d4an00901k

Analytical and Bioanalytical Chemistry, Vol. 416, No. 22, 2024, P. 4907-4918

Tian C, Song H, Ahlmann N, Brandt S, Foest D, Niu G, Franzke J, Speicher L.

Soft ionization mechanisms in flexible μ-tube plasma-elucidation of He-, Ar-, Kr-, and Xe-FμTP

https://doi.org/10.1007/s00216-024-05419-1

Analytical and Bioanalytical Chemistry, Vol. 416, No. 22, 2024, P. 4919-4927

Speicher L, Song H, Ahlmann N, Foest D, Höving S, Brandt S, Niu G, Franzke J, Tian C.

Soft ionization mechanisms in flexible µ-tube plasma-from FµTP to closed µ-tube plasma

https://doi.org/10.1007/s00216-024-05420-8

Talanta, Vol. 274, 2024

García-Martínez J, Caño-Carrillo I, Gilbert-López B, Bouza M, Beneito-Cambra M, Franzke J, Molina-Díaz A, García-Reyes JF.

Miniaturized flexible micro-tube plasma ionization source for the effective ionization of non-easily ionizable pesticides in food with liquid chromatography/mass spectrometry

https://doi.org/10.1016/j.talanta.2024.126011