Quantitative determination of binary and tertiary calcium carbonate mixtures using powder X-ray diffraction.
The ability to determine the calcium carbonate polymorphic ratio of calcite, aragonite and vaterite in a mixture is important for a variety of applications, particularly the fields of biomineralisation and crystal engineering. Raman spectroscopy and powder X-ray diffraction were used to quantitatively determine the polymorphic composition of both binary and tertiary mixtures of calcium carbonate. It was found that the quantitative detection limits of powder X-ray diffraction were superior to both Raman and infrared spectroscopy.
Dickinson
S R
SR
Department of Chemistry, University of Otago, Dunedin, New Zealand.
McGrath
K M
KM
D002119:Calcium Carbonate / Q000737:chemistry*; D013055:Spectrophotometry, Infrared; D014961:X-Ray Diffraction / Q000379:methods
D002119:Calcium Carbonate