Use of Silica with Immobilized 2-Nitrozo-1-Naphthol-4-Sulfonic Acid for the Sorption–Photometric Determination of Palladium


Тип публикации: статья из журнала

Год издания: 2019

Идентификатор DOI: 10.1134/S1061934819080069

Ключевые слова: modified silica, nitroso-N-salt, palladium(II), sorption–photometric determination

Аннотация: Abstract: Silica modified with 2-nitroso-1-naphthol-4-sulfonic acid (NNS), quantitatively extracting palladium(II) from solutions in the pH range 1–8, is proposed for the preconcentration and photometric determination of palladium(II) in the adsorbent phase. In the sorption of palladium(II) from solutions with pH 1–3, complex compoПоказать полностьюunds of the stoichiometry Pd : NNS = 1 : 2 were formed on the adsorbent surface. They has intense lilac color and a maximum in diffuse reflectance spectrum at 550 nm. A procedure is developed for sorption–photometric determination of palladium in the version of diffuse reflectance spectroscopy with a limit of detection 0.03 µg per 0.1 g of the sorbent. The analytical range is 0.1–10 µg/0.1 g. The procedure was tested in the determination of palladium in wastewater and water extract from the soil. © 2019, Pleiades Publishing, Ltd.

Ссылки на полный текст


Журнал: Journal of Analytical Chemistry

Выпуск журнала: Vol. 74, Is. 8

Номера страниц: 738-743

ISSN журнала: 10619348

Издатель: Pleiades Publishing


  • Didukh-Shadrina S.L. (Siberian Fed Univ, Kristall Res & Engn Ctr, Krasnoyarsk 660041, Russia)
  • Losev V.N. (Siberian Fed Univ, Kristall Res & Engn Ctr, Krasnoyarsk 660041, Russia)
  • Maznyak N.V. (Siberian Fed Univ, Kristall Res & Engn Ctr, Krasnoyarsk 660041, Russia)
  • Trofimchuk A.K. (Shevchenko Kiev Natl Univ, Fac Chem, UA-01033 Kiev, UkraineArticle)