Determination of trace levels of barium in calcium carbonate by atomic-absorption spectrophotometry
- 1 January 1975
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 100 (1188) , 198-202
- https://doi.org/10.1039/an9750000198
Abstract
A sensitive atomic-absorption spectrophotometric method for the determination of trace levels of barium in calcium carbonate using a simple graphite-rod atomiser has been developed. The calcium carbonate is dissolved in nitric acid and the solution applied to the sample cavity in the graphite rod. A detection limit of 0·0045 µg ml–1 of barium in a solution containing 10 000 µg ml–1 of calcium was obtained on a 5-µl sample volume.Keywords
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