Current time in Korea 08:59 Oct 23 (Fri) Year 2020 KCS KCS Publications
KCS Publications
My Journal  Log In  Register
HOME > Search > Browsing(JKCS) > Archives

Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 38, Number 3
JKCSEZ 38(3)
June 20, 1994 

 
Title
Square-Wave Voltammetric Study of Uranium(Ⅵ)-Cupferron Complex

Uranium(Ⅵ)-Cupferron 착물의 네모파 전압전류법적 연구
Author
Se Chul Sohn, Moo Yul Suh, Tae Yoon Eom, In Kyu Choi

손세철, 서무열, 엄태윤, 최인규
Keywords
Abstract
uranium(Ⅵ)-cupferron 착물에 대한 네모파 전압전류법적 연구를 pH5.0의 0.1M아세트산 완충용액에서 수행하였다. 네모파 전압전류법을 이용한 미량의 우라늄 정량과 분석시의 최적조건에 대해 검토하였다. Uranium(Ⅵ)-cupferron 착물의 환원반응은 반응물만이 전극 표면에 흡착되는 비가역적인 과정으로 진행되는 반응임을 알 수 있었다. Uranium(Ⅵ)의 검출한계는 -0.1 V vs. Ag/AgCl에서 흡착시간을 30sec로 하였을 때 7.9nM(2 ppb)이었으며, 전극 표면에 흡착된 uranium(Ⅵ)-cupferron착물의 양은 Γmax = (4.9±0.3) × 10-10 mol·cm-2이었다.

Square-wave voltammetric behavior for uranium(Ⅵ)-cupferron complex was studied in 0.1 M acetate buffer solution(pH5.0). The optimum condition for square-wave voltammetric analysis of uranium was also investigated. The reduction of uranium(Ⅵ)-cupferron complex was found to be irreversible and only uranium(Ⅵ)-cupferron complex was adsorbed on the electrode surface during the deposition time. Detection limit of uranium(Ⅵ) was 7.9nM(2 ppb) where the deposition time was 30sec at -0.1 V vs. Ag/AgCl. The amount of uranium(Ⅵ)-cupferron complex adsorbed on the electrode surface was Γmax = (4.9±0.3) × 10-10 mol·cm-2.

Page
234 - 240
Full Text
PDF