A nitrate-selective microelectrode based on a lipophilic derivative of iodocobalt(III)salen

被引：0
|
作者：
P. G. Verschuren
Juul L. van der Baan
Rolf Blaauw
Dirk de Beer
Johannes C. van den Heuvel
机构：
[1] Instituut voor Technische Scheikunde,
[2] Universiteit van Amsterdam,undefined
[3] Nieuwe Achtergracht 166,undefined
[4] 1018 WV Amsterdam,undefined
[5] The Netherlands,undefined
[6] Scheikundig Laboratorium,undefined
[7] Vrije Universiteit,undefined
[8] De Boelelaan 1083,undefined
[9] 1081 HV Amsterdam,undefined
[10] The Netherlands,undefined
[11] Max-Planck-Institut für Marine Microbiology,undefined
[12] Celciusstraße 1,undefined
[13] 28359 Bremen,undefined
[14] Germany,undefined
来源：
Fresenius' Journal of Analytical Chemistry | 1999年 / 364卷
关键词：
Nitrate; Cobalt; Detection Limit; Nitrite; HCO3;
D O I：
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中图分类号：
学科分类号：
摘要：
The synthesis of iodo{2,2′-[1,2-octadecanediylbis(nitrilomethylidyne)]diphenolato}cobalt is described. Liquid membrane microelectrodes based on this carrier exhibit Nernstian behaviour with a selectivity sequence according to the Hofmeister series: I– > NO3– > NO2– > Cl– > HCO3– > AcO–. The selectivity coefficient of nitrate over nitrite and chloride amounts to –1.6 and –2.7, respectively. The detection limit for nitrate in water amounts to 10–5.2 mol/L. A nitrate profile measured in a nitrifying biofilm is presented as a practical application.
引用
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页码：595 / 598
页数：3
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