Dear all,

being suddenly confronted with having to analyse Mn-carbonates,
especially kutnahorite, I wonder if there are any ideas out there
regarding reaction times (with H3PO4), -temperatures, and
temperature dependent fractionation factors between these
carbonates and H3PO4. I have only a pretty conventional carbonate
extraction line, using off-line reaction in temperature controlled
baths.

Any ideas/suggestions are very much appreciated;
thank you all in advance.
cheers,
Uwe


Dr. Uwe E. Horstmann
Council for Geoscience
P/Bag X112
0001 Pretoria
South Africa

Tel.: +27 12 841 1361
Fax.: +27 12 841 1278
cell: 082 408 3212
e-mail: [log in to unmask]