Adsorption-Photometric and Test-Determination of Fe(III) in Natural Water Using Silica Lyer-by-Lyer Modified with Polyhexamethylene Guanidine and Ferron : научное издание | Научно-инновационный портал СФУ

Adsorption-Photometric and Test-Determination of Fe(III) in Natural Water Using Silica Lyer-by-Lyer Modified with Polyhexamethylene Guanidine and Ferron : научное издание

Тип публикации: статья из журнала

Год издания: 2020

Идентификатор DOI: 10.17516/1998-2836-0188

Ключевые слова: adsorption-photometric determination, test-determination, iron(iii), modified silicas, ferron

Аннотация: Silica based adsorbent sequentially modified with polyhexamethylene guanidine and 7-iodine-8-hydroxyquinoline-5-sulfonic acid ( Ferron) was proposed for adsorption-photometric and test-determination of Fe(III) in natural water. During adsorption of Fe( III) from solutions with pH 2.0-3.5 adsorbent became green colored. Formation of green-colored surface complex of Fe(III) with Ferron with the maximum in diffuse reflectance spectrum at 600 nm was used for developing the procedure of its adsorption-photometric determination. Detection limit calculated by 3s-criterion was 0.03 mu g/0.1 g of adsorbent (3 mu g/L if the adsorption was carried out from 10 mL of solution); the analytical range was 10-220 mu g/L. Test-method was proposed for quick visual determination of Fe(III) in natural water in the variant of test-scale. Developed procedures were tested for determination of iron in natural river water of Krasnoyarskii kray and mineral water "Zagorie". Silica based adsorbent sequentially modified with polyhexamethylene guanidine and 7-iodine-8-hydroxyquinoline-5-sulfonic acid (Ferron) was proposed for adsorption-photometric and test-determination of Fe(III) in natural water. During adsorption of Fe(III) from solutions with pH 2.0-3.5 adsorbent became green colored. Formation of green-colored surface complex of Fe(III) with Ferron with the maximum in diffuse reflectance spectrum at 600 nm was used for developing the procedure of its adsorption-photometric determination. Detection limit calculated by 3s-criterion was 0.03 µg/0.1 g of adsorbent (3 µg/L if the adsorption was carried out from 10 mL of solution); the analytical range was 10 – 220 µg/L. Test-method was proposed for quick visual determination of Fe(III) in natural water in the variant of test-scale. Developed procedures were tested for determination of iron in natural river water of Krasnoyarskii kray and mineral water “Zagorie”. © Siberian Federal University. All rights reserved

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Издание

Журнал: JOURNAL OF SIBERIAN FEDERAL UNIVERSITY-CHEMISTRY

Выпуск журнала: Vol. 13, Is. 3

Номера страниц: 349-362

ISSN журнала: 19982836

Место издания: KRASNOYARSK

Издатель: SIBERIAN FEDERAL UNIV

Авторы

  • Didukh-Shadrina Svetlana L. (Siberian Fed Univ, Res Engn Ctr Kristall, Krasnoiarsk, Russia)
  • Buyko Olga (Siberian Fed Univ, Res Engn Ctr Kristall, Krasnoiarsk, Russia)
  • Losev Vladimir N. (Siberian Fed Univ, Res Engn Ctr Kristall, Krasnoiarsk, Russia)

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