Using silica modified by Tiron for metal preconcentration and determination in natural waters by inductively coupled plasma atomic emission spectrometry

Тип публикации: статья из журнала

Год издания: 2016

Идентификатор DOI: 10.1134/S1061934816090082

Ключевые слова: modified silica, polyhexamethylene guanidine, Tiron, metal ions, adsorption preconcentration, determination by atomic emission spectrometry, Aluminum, Atomic emission spectroscopy, Atoms, Desorption, Lead, Manganese, Metal ions, Metals, Silica, Spectrometry, Zinc, Zinc compounds, Atomic emission spectrometry, Modified silica, Pre-concentration, Inductively coupled plasma

Аннотация: A new adsorbent is synthesized on the basis of silica consecutively modified by polyhexamethylene guanidine and 4,5-dihydroxy-1,3-benzenedisulfonic acid (Tiron) for the group preconcentration of Fe(III), Al(III), Cu(II), Pb(II), Zn(II), and Mn(II) followed by determination by inductively coupled plasma atomic emission spectrometry. The adsorbent in the batch mode quantitatively (recovery 98-99%) extracts Fe(III), Al(III) and Cu(II) ions at pH 4.0 and Fe(III), Al(III), Cu(II), Pb(II), Zn(II), and Mn(II) ions at pH 7.0; the time of attainment of an adsorption equilibrium does not exceed 10 min. Consecutive preconcentration at pH 4.0 and 7.0 in the batch and dynamic modes ensures the quantitative separation of Fe(III), Al(III), and Cu(II) from Pb(II), Zn(II), and Mn(II) and their separate determination. The quantitative desorption of metals was attained with 0.5-1.0 M HNO3 (5 or 10 mL). In preconcentration from 200 mL of solution with 5 mL of a desorbing solution, the preconcentration coefficient was equal to 40. The developed procedure was used for the determination of metal ions in river waters of Krasnoyarsk Krai. The results obtained were verified by the added-found method.

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Издание

Журнал: JOURNAL OF ANALYTICAL CHEMISTRY

Выпуск журнала: Vol. 71, Is. 11

Номера страниц: 1081-1088

ISSN журнала: 10619348

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Didukh 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)
  • Mukhina A.N. (Siberian Fed Univ, Kristall Res & Engn Ctr, Krasnoyarsk 660041, Russia)
  • Trofimchuk A.K. (Taras Shevchenko Natl Univ, Fac Chem, UA-01033 Kiev, Ukraine)

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