D
Hi
I have recently been asked to oversee our PGM department in work without having worked in their labs. I am slowly but surely getting to grips with method selection but some things still haven't clicked into place yet.
I am ok with our low level TPM samples that have to be preconcentrated via Fire Assay but I am struggling with the high grade complex materials.
If I know that I am going to get a residue after acid digestion with aqua regia (i.e. Rh, Ru, Ir or Os) should I pre-empt this and send the samples through our furnaces in a NiS flux? Should I attempt do a peroxide fusion? Or should I do a direct acid attack and then tackle any residue that remains?
I would be very interested to hear how other people tackle these types of samples.
Thanks
I have recently been asked to oversee our PGM department in work without having worked in their labs. I am slowly but surely getting to grips with method selection but some things still haven't clicked into place yet.
I am ok with our low level TPM samples that have to be preconcentrated via Fire Assay but I am struggling with the high grade complex materials.
If I know that I am going to get a residue after acid digestion with aqua regia (i.e. Rh, Ru, Ir or Os) should I pre-empt this and send the samples through our furnaces in a NiS flux? Should I attempt do a peroxide fusion? Or should I do a direct acid attack and then tackle any residue that remains?
I would be very interested to hear how other people tackle these types of samples.
Thanks