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Science B 116
University of Calgary
2500 University Drive NW   
Calgary, AB, Canada
T2N 1N4


Faculty and Research Associates

Mike Wieser

Dr. Michael Wieser (he/him)

Mike Wieser investigates the interactions of metals in living and non-living systems by studying changes in the isotopic compositions of biochemically significant elements.  Developing analytical methods in isotope ratio mass spectrometry is the foundation of Mike’s research. He may be found adventuring into disciplines including nuclear physics, analytical chemistry and sometimes biology and the environmental sciences.

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Kerri Miller

Dr. Kerri Miller (she/her)

Kerri Miller’s research focuses on metal isotopes in the body (Cu, Zn, Pb) and how the amounts and isotopic composition of these metals change due to metabolic interruptions or environmental exposure.  Currently she is working on the development of methods to push the limits of multicollector ICP-MS detection to enable the quantification of femtogram amounts of isotopes in biological samples.  

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Anika Retzmann

Dr. Anika Retzmann (she/her)

Anika Retzmann’s research focuses on analyzing the elemental and stable metal isotopic composition of biological systems and applying these insights to research questions in environmental science, archaeometry, biomedicine, and the life sciences. To this end, she develops advanced analytical tools, including fully automated analyte purification procedures and high-precision mass spectrometry, to investigate the roles of essential elements in biological systems through their isotopic signatures. Most recently, Anika pioneered the integration of the MICAP ion source, which uses a nitrogen plasma, with high-precision multi-collector mass spectrometry for stable metal isotopic analysis.

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