METHODS AND OBJECTS OF CHEMICAL ANALYSIS ISSN title: "Metody i obʺekty himičeskogo analiza" An international journal devoted to all aspects of Analytical chemistry ISSN 2413-6166 (Online), ISSN 1991-0290 (Print)
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The determination of aluminium in natural waters by test,stripe on the base aurintricarboxylic acid

 Ostrovskay V.M., Reshetnyak E.A., Nemets N.N., Shevchenko V.N.

The indicator paper RIP,Aluminium,Test, which were obtained by mixed immobilization (covalent and adsorptive in molar ratio 1:5) of aurintricarboxylic acid on chromatographic epoxy paper, are offered to a visual test,determination of aluminium(III) in water environments. The limit of detection (3,1 mkg/l) and limit of determination (3,7 mkg/l) of aluminium for the case of concentration (an analyzed solution pumped through reactionary zone of RIP with a speed of 3 ml/30 s) are evaluated. The opportunity of determination of Al(III) in natural waters of complex composition without preliminary sample decomposition is shown. The solutions used for preparation of a color scale, should contain the same quantity of fluorides, as analyzed samples.

Keywords: aluminium, test,determination, aurintricarboxylic acid, reagent indicator paper