JEOL Probe Users Listserver Moderator: Ellery Frahm, [log in to unmask], Electron Microprobe Lab, University of Minnesota Post a message: send your message to [log in to unmask] Unsubscribe: send "SIGNOFF PROBEUSERS" to [log in to unmask] On-line help and FAQ: http://probelab.geo.umn.edu/listserver.html * Hi Brian, we would also map for Cl, which is typical epoxy component. Unless your C-rich areas are also rich in Cl, you should be able to identify epoxy by high Cl signal. Cheers, Sergei On Tue, Jun 12, 2012 at 9:30 PM, Brian Joy <[log in to unmask]> wrote: > JEOL Probe Users Listserver > > Moderator: Ellery Frahm, [log in to unmask], > Electron Microprobe Lab, University of Minnesota > > Post a message: send your message to [log in to unmask] > > Unsubscribe: send "SIGNOFF PROBEUSERS" to [log in to unmask] > > On-line help and FAQ: http://probelab.geo.umn.edu/listserver.html > > > > * > > Hi everyone, > > I am working on an X-ray mapping project and would like to identify epoxy > that has infiltrated pore spaces and fractures in shale. The > complications are 1) the pore spaces are typically no more than a few > microns across and 2) carbonaceous material is abundant within the > samples. The carbonaceous material always contains some amount of sulfur, > and so it can often be distinguished by this means. However, I would like > to unambiguously identify epoxy that has infiltrated the sample (or verify > that it hasn't infiltrated). Does anyone have experience with adding a > tracer element (as a solute?) to epoxy for this purpose? The > concentration of the element would need to be great enough that it could > be detected via EDS (SDD) in micron-scale pore spaces while using a > relatively short dwell time (not much longer than 20 ms, with probe > current not exceeding 100 nA). I'd appreciate any advice. > > Brian > > -- > Brian Joy > Electron Microprobe and ESEM Lab > Queen's Facility for Isotope Research > Department of Geological Sciences and Geological Engineering > Queen's University > 36 Union Street > Kingston, Ontario K7L 3N6 > > cell phone: 530-220-0434 > lab phone: 613-533-2595 > fax: 613-533-6592 > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > >