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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 31, Number 3
JKCSEZ 31(3)
June 20, 1987 

Nitrate Ion-Selective Membrane Electrode Based on Complex of Ammonia Modified Bakelite A-Ni(Ⅱ) Nitrate

Bakelite A-Ni(Ⅱ) 착물의 질산이온 선택성 막전극
Hwan-Ki Kim, Doo-Soon Shin

김환기, 신두순
Amine기를 가진 Bakelite A와 Ni(ⅱ) 사이의 착물을 이용한 NO3-이온 선택성 막전극을 만들었다. 이 막전극은 H+ 이온 및 2가 3가 음이온에는 감응하지 않으며, 특히 이 막전극의 재현성, 감응시간 및 이온선택성등 전기화학적 성질을 조사하여 다른 실용화된 막전극과 비교 고찰하였으며 분석화학에의 응용을 고찰하였다.

electrode based on ammonia modified bakelite A-Ni(NO3)2 complex as ion exchanger was prepared. The electrode gave a linear response with a Nernstian slope of 60mV per decade within the concentration range 1∼10-4 M KNO3 but nonresponse to hydrogen ion and multivalent anions. The selectivity, response time and life time of the electrode were investigated and it was found that the electrode exbibited good selectivity for four univalent anions (Cl-, Br-, I-, ClO4-). Analytical application to the determination of nitrate were also studied.

271 - 279
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