Sample work-up for graphite furnace atomic-absorption spectrometry using continuous flow extraction
- 1 January 1984
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 109 (3) , 323-325
- https://doi.org/10.1039/an9840900323
Abstract
Using a flow injection analysis system a two-stage extraction method has been developed to extract metals automatically from aqueous solutions; cadmium, copper, iron, lead, nickel and zinc could be concentrated 25–30-fold without serious losses. However, cobalt gave only a 15-fold enrichment. The metals are concentrated into an aqueous solution totally free from the original matrix. The flow-rate of extract is about 200 µl min–1, making the system compatible with the graphite furnace.Keywords
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