An Automated Manometric Method for Quantitative Determination of Calcite and Dolomite1
- V. P. Evangelou,
- L. D. Whittig and
- K. K. Tanji2
A rapid automated method is described for differentiation and quantitative determination of calcite and dolomite in earth materials. The method is based on differential pseudo-first-order kinetic rates of dissolution of the two carbonate species when reacted with excess of 5M HCl. The method employs manometric measurement of acid-liberated CO2 with a differential pressure transducer coupled to a strip chart recorder. Tested on calcite and dolomite singly and together in geologic materials, the method is highly discriminatory, highly sensitive, and extremely rapid. Theoretical treatments of pseudo-first-order kinetic reactions and of manometric measurements associated with the method are reviewed.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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