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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

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

Journal of the American Society for Mass Spectrometry, Vol. 35, No. 7, 2024, P. 1622-1628

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

Setting the Separation Factor α for Ketone Monomers and Dimers by the Use of Different Drift Gases

https://doi.org/10.1021/jasms.4c00215

3D Printing and Additive Manufacturing, 2024

Höving S, Dörr S, Akermann M, Schiller A, Lorenz K, Schwendemann D, Franzke J, Brandt S.

Enhancing Biocompatibility: 3D-Printed Cyclic Olefin Copolymer Structures for Advanced Laboratory Applications

https://doi.org/10.1089/3dp.2023.0261

3D Printing and Additive Manufacturing, 2024

Höving S, Akermann M, Schiller A, Franzke J, Schwendemann D, Brandt S.

Functionalization of Cyclic Olefin Copolymer for Enhanced Electrical Conductivity in Material Extrusion 3D-Printing: Potential Applications in Laboratory Environments and Small-Scale Experiments

https://doi.org/10.1089/3dp.2023.0304

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

Analytical Chemistry, Vol. 96, No. 13, 2024, P. 5289-5297

Bouza M, Foest D, Brandt S, García-Reyes JF, Franzke J.

Enhanced Compound Analysis Using Reactive Paper Spray Mass Spectrometry: Leveraging Schiff Base Reaction for Amino Acid Detection

https://doi.org/10.1021/acs.analchem.4c00215

Analytical Chemistry, Vol. 95, No. 50, 2023, P. 18370-18378

Bouza M, Ahlmann N, García-Reyes JF, Franzke J.

Solvent-Assisted Laser Desorption Flexible Microtube Plasma Mass Spectrometry for Direct Analysis of Dried Samples on Paper

https://doi.org/10.1021/acs.analchem.3c03009