Environmental Science

Professor McGraw

Christina McGraw, Ph.D.

Electrochemical Sensors, Environmental Analytical Chemistry

Assistant Professor of Chemistry
Carlson School of Chemistry
Clark University
Worcester, MA 01610-1477

Office: S122, Sackler Sciences Center
Phone: 508-421-3897
E-mail: cmcgraw@clarku.edu

Research Group Webpage

Graduate Student position available


Education

B.S., University of Alaska Fairbanks, 1999
Ph.D., Analytical Chemistry, University of Washington, 2004
Postdoctoral Fellow, Dublin City University, Dublin, Ireland, 2005-2006
Postdoctoral Fellow, University of Otago, Dunedin, New Zealand, 2006-2010

Current Research

Our Group develops field-deployable sensors for marine and freshwater applications. The sensors, which are based on electrochemical and fluorescence detection, are incorporated into versatile laboratory-built platforms, which allows us to study a variety of analytes. Our current focus is on the development of autonomous devices to measure the changing carbonate chemistry of surface seawater. New materials, which are developed in collaboration with Sergio Granados-Focil, are optimized for selectivity, sensitivity, and lifetime. Undergraduate and graduate students from three departments are involved in the developemnt, testing, and deployment of the sensors. This team-based, multidisciplinary approach has allowed us to address problems outside the scope of a traditional analytical laboratory.

Selected Publications

C.L. Hurd, C. Cornwall, K. Currie, C.D. Hepburn, C.M. McGraw, K.A. Hunter, P.W. Boyd, Metabolically-induced pH fluctuations by some coastal calcifiers exceed projected 22nd century ocean acidification: a mechanism for differential susceptibility?, Global Change Biology, doi: 10.111/j.1365-2486.2011.02473.x(2011)

C.M. McGraw, C. Cornwall, M.R. Reid, K. Currie, C.D. Hepburn, P.W. Boyd, C.L. Hurd, K.A. Hunter, An automated pH-controlled culture system for laboratory-based ocean acidification experiments, Limnology & Oceanography: Methods, 8, 2010, 686-694 (2010)

C.M. McGraw, G. Khalil, J.B. Callis, Comparison of time and frequency domain methods for luminescence lifetime measurement. Journal of Physical Chemistry C, 112 (21):8079–8084 (2008)

C.M. McGraw, A. Radu, C. Slater, D. Diamond, Pb2+-selective polymer-membrane electrodes for deployable devices. Electroanalysis, 20 (3):340–346 (2008)

C.M. McGraw, S.E. Stitzel, J. Cleary, C. Slater, D. Diamond, Autonomous microfluidic system for phosphate detection in natural waters. Talanta, 71: 1180–1185 (2007)

C.M. McGraw, J.H. Bell, G. Khalil, J.B. Callis, Dynamic surface pressure measurements on a square cylinder with pressure sensitive paint. Experiments in Fluids, 34:203-211 (2006)