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Automatic study of selectivity by the flow-rate gradient technique

✍ Scribed by Bernhard Landl; Angel Ríos; Miguel Valcárcel; Manfred Grasserbauer

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
647 KB
Volume
289
Category
Article
ISSN
0003-2670

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✦ Synopsis

An automatic flow methodology was developed to study the selectivity of analytical flow methods. The methodology is characterized by its simplicity, rapidity, precision and flexibility. The flow-rate gradient technique was used to establish interferent concentSi6n gradients along the manifold where the main photometric reaction took place. By continuously monitoring the absorbance, the maximum tolerated foreign species to analyte concentration ratio was automatically determined. The aluminium(III)-Eriochrome

Cyanine R system was chosen to test the performance of the new methodology.

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