Investigations Into the Simultaneous Determination of Bismuth and Selenium by ‘In Atomizer Trapping’ Electrothermal Atomic Absorption Spectrometry†
- 1 January 1997
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Analytical Communications
- Vol. 34 (11) , 359-362
- https://doi.org/10.1039/a706603a
Abstract
Initial investigations are described for the simultaneous determination of Bi and Se by hydride generation ‘in atomizer trapping’ electrothermal atomic absorption spectrometry. A fully automated micro-scale flow injection hydride generation system with ‘in atomizer trapping’ electrothermal atomic absorption spectrometry was employed. Using the recommended single element hydride generation conditions and optimised multi-element ETAAS parameters, simultaneous signals for Bi and Se were obtained. Calibration graphs were constructed in the range 0–5 µg l– 1 and method detection limits of 0.13 and 0.19 µg l– 1 for Bi and Se, respectively, established. Better than 2% precision was obtained for 3.0 µg l– 1 (n = 5) for Bi and Se. Carry-over effects were seen for Se and were reduced by the use of an internal atomizer gas flow during the ‘in atomizer trapping’ step.Keywords
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