I have been testing the cheaper bench-top XRF's for use in oil analysis, and results have been unsatisfactory (difficulty reading lighter elements). Sample prep consists of the oil in a cup with a mylar film at the bottom.
We are considering using one of our in-house big XRF's, however there is no way I am lowering oil into the sampling chamber with just a thin film preventing the oil from flooding the chamber.
I know that some NZealanders solidify the oil before testing.
Do any of you have an idea of how this is done?
How to I solidify an oil sample?
Some sort of cement? Epoxy, hardner?
Its not done via freezing. Oil hardener? http://www.annathered.com/2009...panese-oil-hardener/
Thank you for your replies.