Can synchrotron micro-X-ray fluorescence spectroscopy be used to map the distribution of cadmium in soil particles?
Paul J. Milham A B E, Timothy E. Payne C, Barry Lai D, Rachael L. Trautman C, Zhonghou Cai D, Paul Holford B, Anthony M. Haigh B and Jann P. Conroy B A NSW Department of Primary Industries, LB 4, Richmond, NSW 2753, Australia. B Centre for Plant and Food Science, University of Western Sydney, LB 1797, Penrith South DC, NSW 1797, Australia. C Australian Nuclear Science and Technology Organisation, Menai, NSW 2234, Australia. D Advanced Photon Source, Argonne National Laboratory, 9700 S Cass Avenue, Argonne, IL 60439, USA. E Corresponding author. Email: paul.milham@dpi.nsw.gov.au Abstract Plants take up cadmium (Cd) from the soil, and the concentration of Cd in some plant products is a health concern. Plant uptake of Cd is poorly predicted by its concentration in soils; consequently, there is interest in the binding and distribution of Cd in soil. Synchrotron micro-X-ray fluorescence spectroscopy (micro-XRFS) is the most sensitive method of observing this distribution. We used beam-line
