Potentiometric response of calix[4]pyrrole liquid membrane electrode towards neutral nitrophenols

被引：0
|
作者：
Piotrowski, T
Radecka, H
Radecki, J
Depraetere, S
Dehaen, W
机构：
[1] Polish Acad Sci, Inst Anim Reprod & Food Res, Div Food Sci, PL-10747 Olsztyn, Poland
[2] Katholieke Univ Leuven, Dept Chem, B-3001 Heverlee, Leuven, Belgium
来源：
ELECTROANALYSIS | 2001年 / 13卷 / 04期
关键词：
potentiometric sensor; calix[4]pyrroles; neutral nitrophenols; proton affinity;
D O I：
10.1002/1521-4109(200103)13:4<342::AID-ELAN342>3.3.CO;2-9
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Calix[4]pyrroles were applied as a new class of ligands of potentiometric sensors for neutral nitrophenol isomers. Calix[4]pyrrole-containing liquid membranes exhibit a very high affinity to proton uptake. These membranes, in protonated form, showed very high selectivity towards para-nitrophenol in the presence of other nitrophenols and dihydroxybenzene isomers. The probable mechanism of the potentiometric signal generation of the membrane investigated upon stimulation by nitrophenol isomers existing in neutral form is discussed.
引用
收藏
页码：342 / 346
页数：5
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