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Screening of antimony in PVC by solid sampling-graphite furnace atomic absorption spectrometry
M A Belarra1, I Belategui, I Lavilla
1Department of Analytical Chemistry, University of Zaragoza, E-50009, Zaragoza, Spain.
Abstract:
The development of two-stage control systems is of great interest when a large number of samples are analysed in order to check that they fulfil certain requirements. If the first stage is carried out using an inexpensive method with a high throughput which makes it possible to filter out the majority of the samples that fulfil the requirements, the procedure is not only less time-consuming but also more economical. Direct determination of metals in solid samples by graphite furnace atomic absorption spectrometry (GFAAS) appears, in principle, to be a suitable analytical technique for screening purposes since it provides sufficiently reliable results in a reasonably short time. In this paper it is applied with satisfactory results to antimony content control in a PVC sample.
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