Hi Matt, The quote below is where I got the idea that Steven was interested in size-determination of nanoparticles, but I may have misunderstood...maybe he meant to use the fraction of oxide as a marker for the surface to volume ratio? In any case, that still makes me think that he expects to have nanoscale particles... --Scott Calvin Sarah Lawrence College At 03:12 PM 5/5/2005 -0400, Steven wrote:
<fontfamily><param>Arial</param> However, if what we have is closer to a physical mixture of small Co metal particles and Co oxide particles, it would seem that it would be more appropriate to analyze separately the windowed Co-O and Co-Co peaks in R-space, to somehow normalize the Co-Co to the fraction of metal in the sample and use this as a qualitative measure of metal particle size.</fontfamily>