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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 6, Number 1
February 20, 1962 

Study on the Polarographic Behaviors of Tl (Ⅰ) in EDTA and NTA as Supporting Electrolytes

EDTA 및 NTA 지지전해질중 Thallium (Ⅰ) 의 Polarography 에 관한 연구
Hwang Am Kim, Yong Tai Kim

김황암, 김영태
The polarographic behaviors of Tl(Ⅰ) was investigated in EDTA and NTA as supporting electrolytes for determination of Tl(Ⅰ). A base solution containing 0.005 % gelatine, 0.1 M EDTA, and 0.05 M NTA was used. The halfwave potential of Tl(Ⅰ) determined is -0.495 V v.s. S.C.E. in 0.1 M EDTA at pH 4.1 and -0.520V v.s. S.C.E. in 0.05 M NTA at pH 6.3. In this paper, the effects of gelatine concentration and pH values was investigated. The half-wave potentials of common elements was determined and compared with the half-wave potential of Tl(Ⅰ).
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