# Trace element determination for diagnosis and therapy control
Method developments, especially hyphenated techniques for speciation projects (also from the general analytical services)
Manganese speciation in the frame of environmental medicine and neuro toxicology
(cooperation with the institute of Toxicology of GSF and Clinic of Neurology, Klinikum TU-München.
Speciation of Molybdenum isotopes in the frame of in-vivo tracer investigations
(cooperation with the institute of Radiation Protection , group Medical Physics of GSF).
Speciation of Selenium in the frame of investigations on oxidative stress using knock-out mouse models with Se deficiency and deficiency of several seleno-enzymes (cooperation with the Department of Comparative Medicine of GSF).