Abstract
Abstract Two atomic absorption accessory units were studied for the determination of arsenic and selenium in waters. One involves a flame mode while the other a flameless mode. Each was analyzed for requirements in speed per analyses, sample sizes required, potential interferences, coefficients of variation, and in overall ease in use. Although the flameless mode could determine lower levels of arsenic and selenium than the flame mode, it was hampered by some severe interferences. Advantages of these accessories in their use over conventional wet chemical methods included: speed per analysis, elimination of time-consuming concentration steps, and elimination of using fragile equipment and noxious solvents.
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