분석과학 (Analytical Science and Technology)
- 제9권1호
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- Pages.78-83
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- 1996
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- 1225-0163(pISSN)
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- 2288-8985(eISSN)
아릴아민계의 중성운반체를 이용한 수소이온선택성 막전극
Hydrogen ion-selective membrane electrodes based on arylamines as neutral carriers
- Jeong, Seong-Suk (Department of Chemistry, Konkuk University) ;
- Cho, Dong-Hoe (Department of Chemistry, Konkuk University) ;
- Kim, Jae-Woo (Department of Chemistry, Konkuk University) ;
- Chung, Koo-Chun (Department of Chemistry, Konkuk University) ;
- Park, Myon-Yong (Department of Chemistry, Konkuk University)
- 투고 : 1995.12.26
- 발행 : 1996.03.25
초록
Tribenzylamine(TBA), tetrabenzylethylenediamine(TBEDA), pentabenzyldiethylenetriamine(PBDETA)을 중성운반체로 이용한 막전극은 각각 pH 1~pH 9, pH 2~pH 12, pH 4~pH 12 범위에서 수소이온에 선택적이고 선형적인 감응을 나타내었다. TBA, TBEDA, PBDETA로 만든 막전극은 비공유전자쌍 수의 증가와 수소이온 선택성 사이에는 무관 하였고 각각에 대한 기울기는 43.8mV/pH, 46.9mV/pH, 43.6mV/pH를 나타냈다. 각 전극에 대하여 알칼리금속이온(
Hydrogen ion-selective membrane electrodes based on tribenzylamine(TBA), tetrabenzylethylenediamine(TBEDA), pentabenzyldiethylenetriamine(PBDETA) as neutral carriers were shown good selectivity and linearity in the range of pH 1~pH 9, pH 2~pH 12, pH 4~pH 12. The pH selectivity of this membrane electrodes have nothing relation with the numbers of unshared electron pair in TBA, TBEDA, PBDETA and were shown a slope of 43.8mV/pH, 46.9mV/pH, 43.6mV/pH respectively. The selectivity coefficients were determined by the separate solution method for alkali(