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|Type:||Artigo de periódico|
|Title:||Operator-free Flow Injection Analyser|
De Faria L.C.
|Abstract:||A flow injection analyser has been constructed to allow an operator-free determination of up to 40 samples. Besides the usual FIA apparatus, the analyser includes a home-made sample introduction device made with three electromechanical three-way valves and an auto-sampler from Technicon which has been adapted to be commanded by an external digital signal. The analyser is controlled by a single board SDK-8085 microcomputer. The necessary interface to couple the analyser components to the microcomputer is also described. The analyser was evaluated for a Cr(VI)-FIA determination showing a very good performance with a relative standard deviation for 15 signals from the injection of 100 μl of a 1.0 mg·ml-1 standard Cr(VI) solution being equal to 0.5%.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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