Project: Stable isotopes for evaluating
micronutrient metal bioavailability
Summary: In urban environments two of the most
common metal contaminants are copper and zinc. In addition to being
contaminants, these metals are regulated micronutrients in most
organisms. Both have stable isotopes (65Cu and 68Zn)
that are readily quantified and differentiated from the more
abundant isotopes (63Cu and 66Zn) by modern
instrumental techniques (ICP-MS).
Rodgers, D.W., S.M. Lev, J.W. Snodgrass, D.R.
Ownby, L.M. Prince, R.E. Casey. 2011. An enriched stable isotope
technique to estimate the availability of soil zinc to
Lumbricus terrestris (L.)
across a salinization gradient. Environmental Toxicology and
Relationship between 68Zn:66Zn
turnover rate and soil zinc toxicity in
Lumbricus terrestris (L.).
J. Serrano, S.M. Lev, D.R. Ownby, R.E. Casey. Poster. 13th Annual
Undergraduate Research Symposium in the Chemical and Biological
Sciences, Cantonsville, MD. 2010.
A stable isotope approach to investigating zinc
toxicity and internal transport in barley (Hordeum
vulgare L.). J.J. New, J.W. Snodgrass, D.R. Ownby, R.E. Casey,
S.M. Lev. Poster. SETAC North America Meeting 2011.
Developing a Copper Isotope Ratio Method for
Estimating Copper Availability to
Eisenia fetida. M.C.
Mazzei, S.M. Lev, D.R. Ownby. Poster. SETAC North
America Meeting 2011.