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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 15, Number 11
BKCSDE 15(11)
November 20, 1994 

Determination of Pd(Ⅱ) and Pt(Ⅱ) Metal Cyano Complexes Using Capillary Electrophoresis
Hye Jin Lee, Sang Ho Lee, Koo Soon Chung, Kwang Woo Lee*
Mixtures of cyano complexes of palladium(Ⅱ) and platinum(Ⅱ) were separated by capillary electrophoresis using a fused silica capillary as a separation column and 30 mM phosphate buffer (pH 7) containing 15 wt. % acetonitrile as a running buffer. By virtue of the high ionic mobilities of the negatively charged cyano complexes of Pd(Ⅱ) and Pt(Ⅱ), they were separated using a cathodic injection and anodic detection scheme. The metal complexes eluted through the capillary were detected by direct UV absorption at 214 nm. A linear relationship between peak area and concentration was obtained for both ions and the detection limit was lower than 10-14 mole. The proposed method was applied to real sample, e.g., anode slime obtained from an electrolytic copper refinary, as a method for the simultaneous determination of palladium and platinum.
945 - 949
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