Potentiometric determination of copper(II) and iron(III) using ion-selective electrodes of oxide vanadium bronzes

被引:0
|
作者
Gyrdasova, OI [1 ]
Volkov, VL [1 ]
机构
[1] Russian Acad Sci, Inst Solid State Chem, Ural Branch, Ekaterinburg, Russia
来源
INDUSTRIAL LABORATORY | 1998年 / 64卷 / 06期
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中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
Direct potentiometry and potentiometric titration methods using potassium ferrocyanide solutions at pH 2.5 - 3 can be used to determine Fe(III) and Cu(II) ions in hydrochloric acid solutions. Ion-selective solid electrodes of the oxide vanadium bronzes (OVB) Na1.4Me0.6V12O30 (Me = Cu, Fe) are used for indication of the equivalence point.
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页码:368 / 370
页数:3
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