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 chromaticity characteristics of thiocyanate complexes Fe(III) and Co(II) sorbed on polyurethane foam by trichromatic RGB,colorimetry method are investigated. The conditions for colorimetric separate determi,nation Fe(III) and Co(II) in the water with their simultaneous presence by measuring only three parame,ters RGB of the painted analytical forms are established. The factor for the separation of analytical signal is evaluated. The advantage of the method of chromaticity over spectroscopy of diffuse reflection for the separate determination of elements in the sorbates is shown. The accuracy of the procedure for the sep,arate determination of elements in the natural water according to the "inputted,found" scheme is checked.
Ключевые слова: RGB,цветометрия, железо, кобальт, смесь окрашенных комплексов, пенополиуретан, раздельное определение
Keywords: RGB,colorimetry, iron, cobalt, polyurethane foam, separate determination