H
Hi All, about to delve into REE analysis and have some lingering thoughts about what crucibles to use.
1) if graphite crucibles (G-C) can be used for fusing rocks using Na2CO3 or Na2O2 (Na-peroxide) at a temp range of 1000-1100C?
2) If so, how many times can each crucible be used before it goes bad? or results inherit contamination from prior fusing?
3) Could there be contamination from graphite crucible for trace elements (particularly REE)?
4) Would you recommend a different kind of fusing agent instead of Na2CO3 or Na2O2?
5)If graphite crucible is not appropriate what else can I use instead (Zirconia crucible instead for fusing rock)?
thanks in advance.
1) if graphite crucibles (G-C) can be used for fusing rocks using Na2CO3 or Na2O2 (Na-peroxide) at a temp range of 1000-1100C?
2) If so, how many times can each crucible be used before it goes bad? or results inherit contamination from prior fusing?
3) Could there be contamination from graphite crucible for trace elements (particularly REE)?
4) Would you recommend a different kind of fusing agent instead of Na2CO3 or Na2O2?
5)If graphite crucible is not appropriate what else can I use instead (Zirconia crucible instead for fusing rock)?
thanks in advance.