I am wondering if any of you know of Pt alternatives for crucibles.
I have some digests that require H2SO4, HNO3, and HF to properly affect the digestion.
~ 30 mL size should be workable for me.
In a former life I have used Pt, especially useful for bringing to fumes of sulfuric (near BP of 337°C?)
Which I also hope would limit S interferences ( esp Ti and Zn)
But it is painfully expensive.
I am looking into sapphire, and wondering if any other materials might be ultra-clean,
Perhaps an unusual metal not of interest analytically, that could withstand theses acids and temperatures?
Senior Analytical Scientist
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