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ISSN : 1738-1894(Print)
ISSN : 2288-5471(Online)
Journal of Nuclear Fuel Cycle and Waste Technology Vol.4 No.1 pp.1-7
DOI :

UV-Visible 흡수분광학법을 이용한 염산매질내 Pu 산화상태 측정

Determination of Pu Oxidation states in the HCl Media Using with UV-Visible Absorption Spectroscopic Techniques

Myung Ho Lee, Mu Yeol Suh, Kyoung Kyun Park, Yeong Jae Park, won Ho Kim

Abstract

The spectroscopic characteristics of Pu (III, IV, V, VI) in the HCl media were investigated by measuring Pu oxidation states using a UV-Vis-NIR spectrophotometer (400-1200 nm) after adjusting Pu oxidation states with oxidation/reduction reagents. Pu in stock solution was reduced to Pu(III) with HCl, and oxidized to Pu(IV) and Pu(VI) with and , respectively. Also, Pu(V) was adjusted in the Pu(VI) solution with HCl. The major absorption peaks of Pu (IV) and Pu(III) were measured in the 470 m and 600 nm, respectively. The major absorption peaks of Pu (VI) and Pu(V) were measured in the 830 nm and 1135 nm, respectively. There was not found to be significant changes of UV-Vis absorption spectra for Pu(III), Pu(IV) and Pu(VI) with aging time, except that an unstable Pu(V) immediately reduced to Pu(III).
Pu oxidation state, absorption spectrum, spectroscopic characteristics, Pu 산화수, 흡수스펙트럼, 분광학적 특성

 

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