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 Показать полностьюapparent 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