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.

@Mike Bender and @Alexander B. Missyul’.....Thanks. your answers are helpful.