Low-temperature hydride furnace modified for the atomic absorption spectrometric determination of metals with low appearance temperatures |
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Authors: | C Bruhn H Berndt ML Tristao |
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Institution: | Institut für Spektrochemie und angewandte Spektroskopie, Postfach 7781, D-4600 Dortmund 1 Federal Republic of Germany |
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Abstract: | The sample is vaporized from tungsten filament coils (150 W) and transported by an argon stream to the cell of a modified hydride furnace for atomic absorption spectrometry (a.a.s.). The system provides almost the same sensitivity for elements with low appearance temperatures (e.g., Bi, Cd, Pb, Tl, Zn) as graphite-furnace a.a.s. The detection limits are between 0.1 and 5 ng ml?1, depending on the element. |
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