Polyelectrolyte effect on spectrophotometric determination and interaction of scandium (III) with eriochromcyanine
| العنوان: | Polyelectrolyte effect on spectrophotometric determination and interaction of scandium (III) with eriochromcyanine |
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| المؤلفون: | Larysa P. Sydorova, Anna Chernyavska, Tatyana S. Chmylenko, Fedor O. Chmylenko |
| المصدر: | Eastern-European Journal of Enterprise Technologies. 4:53-58 |
| بيانات النشر: | Private Company Technology Center, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Materials science, Calibration curve, Applied Mathematics, Mechanical Engineering, Inorganic chemistry, Energy Engineering and Power Technology, chemistry.chemical_element, Sorption, Molar absorptivity, Industrial and Manufacturing Engineering, Polyelectrolyte, Computer Science Applications, chemistry, Control and Systems Engineering, Management of Technology and Innovation, Reagent, Scandium, Electrical and Electronic Engineering, Selectivity, Ternary operation |
| الوصف: | The influence of cationic water-soluble polyelectrolyte PSPMG on the interaction of scandium (III) with organic reagent eriochromcyanine is studied. Because the study of the possibility of obtaining new, more effective, modified reagents with a complex of better analytical characteristics is an actual analytical task. The optimal conditions of complex formation were experimentally determined: the pH range (5.5–6.5), the order of the adding of the components (1 – scandium, 2 – ECR, 3 – PSPMG, 4 – buffer solutions), the composition of the Sc-ECR-PSPMG complex (1:4:1) were experimentally determined and the molar absorption coefficient – 1.8·10 5 was calculated. A sensitive spectrophotometric method for scandium determination in solutions at the level of 10 -7 mol/L was developed. The optimal scandium sorption parameters in the form of three-component systems Sc-OR-modifier on solid-state carriers were established, scandium sorption isotherms were constructed, sorption parameters of A gran and K ads were calculated. The test systems for the identification of scandium as ternary compounds in polyurethane foam and cotton were proposed, calibration curves in the concentration range from 1·10 -6 –1·10 -5 mol/L were built and the colorimetric method of identification of scandium in solutions that accelerate analysis was proposed. It is shown that the PSPMG application is a promising direction for improvement of chemical-analytical characteristics of organic reagents (eriochromcyanine and chromazurol S) because its usage increases the sensitivity and selectivity of the spectrophotometric determination of scandium in the form of a complex Sc-OR-PSPMG. |
| تدمد: | 1729-4061 1729-3774 |
| DOI: | 10.15587/1729-4061.2017.108371 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::281bbc87653f233926590ef985747d55 https://doi.org/10.15587/1729-4061.2017.108371 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........281bbc87653f233926590ef985747d55 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17294061 17293774 |
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| DOI: | 10.15587/1729-4061.2017.108371 |