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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 20, Number 12
BKCSDE 20(12)
December 20, 1999

Title	Spectrophotometric Determination of Scandium(III) in Monazite after Separation Using Amberlite IRC 718 Chelating Resin
Author	Chan-il Park, Ki-Won Cha
Keywords
Abstract	The spectrophotometric determination method of scandium with eriochrome cyanine R (ECR) and the composition ratio of the complex were investigated in the presence of surfactants. A volume of 5 mL of 1.0 ×10-3 M ECR and 10 mL of 2.0 ×10-4 M CTMAB are necessary for the determination of 1.0×10 -7 ~ 3.0 × 10 -6 M Sc(III) at pH 6.5. The apparent molar absorption coefficient of the Sc(III)-ECR-CTMAB, ternary complex at 610 nm is 5.6 ×10 5 mol -1 cm -1 L and its detection limit is 1.0 ×10 -7 M. Separation studies were conducted by the column method. The effect of pH, elution solution and the influence of rare earth elements as interferents was discussed. Their separation was carried out in 0.1 M HCl-50% methanol solution and 1.0 M HCl media. The method was applied for the determination of Sc(III) in monazite.
Page	1409 - 1412
Full Text	PDF

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