Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2006

Ключевые слова: Diffuse reflectance spectroscopy, Ion exchange, Silver, Thiocyanate complexes, Complexation, Concentration (process), Reaction kinetics, Sorption, Spectroscopic analysis, Concentration range, Silver compounds

Аннотация: The present paper is focused on sorption concentration of silver (I) on some complex-forming ion exchangers in the initial thiocyanate form and subsequent determination of Ag(I) in the phase of anion exchanger AN-25 by diffuse reflectance spectroscopy. The sorption and kinetic characteristics of the sorbents were investigated. The apparent stability constants of thiocyanate silver complexes in the ion exchanger phase were calculated. The sorption-spectroscopic method is proposed for Ag(l) determination in aqueous solutions. The calibration curve is linear in the concentration range of 10-200 mg/L (sample volume is 10.0 mL) and the detection limit is 2,mu g/mL. The presence of Na+, K+, Mg2+ (macrocomponents) as well as of Ni (II), Co (II), Cu (II) do not hinder the determination of silver (I).

Журнал: BULLETIN OF THE KOREAN CHEMICAL SOCIETY

Выпуск журнала: Vol. 27, Is. 11

Номера страниц: 1832-1838

ISSN журнала: 02532964

Место издания: SEOUL

Издатель: KOREAN CHEMICAL SOC

• Kononova O.N. (KRASNOYARSK STATE UNIV)
• Goryaeva N.G. (KRASNOYARSK STATE UNIV)
• Vorontsova T.V. (KRASNOYARSK STATE UNIV)
• Bulavskaya T.A. (KRASNOYARSK STATE UNIV)
• Kachin S.V. (KRASNOYARSK STATE UNIV)
• Kholmogorov A.G. (KRASNOYARSK STATE UNIV)

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