I have prepared some nano particles of phosphorous, which oxidize upon air exposure. How I can do XRD, SEM & TEM analysis of such samples?
See the paper:
Article Microbial Synthesis of Phosphorous Nanoparticle from Tri-Cal...
Dear Zeeshan,
For XRD of air sensitive compounds, I have powder packed the dry material quickly from an inert environment and then smeared a thin layer of stopcock grease over the powder pack. Or I have actually mulled the powder into the grease. As long as I confirmed no crystallites in the grease, or where they were, this gave me enough protection for a quick XRD pattern. This all assumes, of course, that the analyte doesn't react with the paraffin/grease.
Best regards,
Mike Bender
For XRD you can seal your sample with a kapton tape after preparation. It will give you up to several hours for measurement.
Also, all main vendors of diffractometers offer special sample holders for the air-sensitive samples. If you expect to have this task on a regular basis, it is a good idea to buy one or two.
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