Atomic energy of Canada Limited |
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| Authors: | J W McMahon A E Docherty J M Judd |
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| Institution: | (1) Chalk River Nuclear Laboratories, Environmental Research Branch, KOJ1JO Chalk River, Ontario, Canada |
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| Abstract: | A method is described for determining stable cobalt concentrations in natural lake waters using polarized Zeeman effect graphite furnace atomic absorption spectrometry. The analysis requires small sample volumes, minimal sample pretreatment and preparation and no chelation or solvent extraction procedures. Instrument linearity, per cent cobalt recovery, matrix interferences and the use of the standard additions method are discussed. The increased sensitivity and precision due to Zeeman AA background correction permits precise determination of stable cobalt in the µg.1–1 range.AECL 8351 reprintAECL 8351 reprint |
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| Keywords: | cobalt ultratrace elements lake water graphite-furnace AA chemical analysis environmental |
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