Professional experience

Apr. 2021 – Dez.2025
Knick Elektronische Messgeräte GmbH & Co. KG, Berlin
Sales Engineer, Product & Application Specialist

Apr. 2020 – Mar. 2021
Beuth Hochschule für Technik Berlin
Research Associate
Laboratory of Pharmaceutical Technology

Jun. 2019 – Nov. 2019 Bilacon GmbH
Berlin
Laboratory Manager, Instrumental Analytics (GC/MS, LC/MS)

Oct. 2018 – Apr. 2019
Versuchs- und Lehranstalt für Brauerei e.V., Berlin
Laboratory Manager, Water Quality & Technology

Jan. 2011 – Sept. 2018 LAR Process Analysers AG
Project Manager - Research and Development, Can Tho (Vietnam) and Berlin, Germany

Education

Mar. 2018 Vietnam National University (VNU), Hanoi
PhD in Environmental Chemistry

Dec. 2009 Beuth Hochschule für Technik Berlin
M.Sc. Pharmaceutical and Chemical Engineering

Oct. 2008 Technische Fachhochschule Berlin
Dipl.-Ing. (FH) Pharmaceutical and Chemical Engineering

Feb. 2002 Schering AG
Pharmaceutical Assistant

Selected publications

Friedrichs F. (2018). Contributions to Online Measurement Systems for the Investigation of Wastewater Toxicity on Activated Sludge. Dissertation, VNU Hanoi. ISBN 978-3-9818108-2-0

Friedrichs F., Rudolph K.U., Nguyen B. H., Meinardi D., Genthe W., Trung D. Q. (2017). Improving the sensitivity of the activated sludge respiration inhibition test and verifying the results using an oxidation-reduction potential electrode. Water Science and Technology, 75(2), 247–254.

Friedrichs F., Rudolph K.U., Panning F., Huyen P. T., Genthe W., Trung D. Q. (2016). Occurrence of Nitrification Inhibition in Vietnam's Industrial Zones. VNU Journal of Science, 32(1S), 159–168.