Determination of cerium in filtrates after sorption by stripping voltammetry on solid electrodes
Dmitry Valerievich Zimonin, Galina Veniaminovna Burmakina, Tatyana Sergeevna Nedelina, Tatyana Aleksandrovna Vereshchagina, Yana Yurevna Chernykh, Anatoly Iosifovich Rubaylo
Abstract
А stripping voltammetry method was developed for the determination of cerium(III) on graphite electrode as a poorly soluble compound in filtrate after sorption. The cerium(III) concentration presents a good linear relationship over the range of 0.5–10 mg/l. Its linear equation is I = (0.56 ± 0.03)с + (0.54 ± 0.10), with a correlation coefficient >0.99. The detection limit of cerium(III) is 0.1 mg/l. The absence of a significant systematic error is shown by the added-found method. Using the developed technique, the concentration of cerium(III) in the filtrates after sorption has been determined.