Gdańsk University of Technology, Chemical Faculty, Department of Analytical Chemistry

University of Tasmania, Ateneo de Manila Philippines (adjunct)

Professor and Research Faculty/PI, Kaohsiung Medical University, Taiwan

Professor of School of Pharmacy, Sungkyunkwan University

Professor emeritus, Tallinn University of Technology

Sivas Cumhuriyet University

Professor of Analytical Chemistry

Zagazig University, Faculty of Science, Chemistry Department

Senior Scientist (Toxicology), Central Forensic Science Laboratory, Chandigarh

Pfizer