Molecular design, characterization, and application of multiinformation dyes (MIDs) for optical chemical sensings.: 3.: Application of MIDs for λmax-tunable ion-selective optodes

被引:12
作者
Hisamoto, H [1 ]
Tani, M [1 ]
Mori, S [1 ]
Yamada, T [1 ]
Ishigaki, T [1 ]
Tohma, H [1 ]
Suzuki, K [1 ]
机构
[1] Keio Univ, Dept Appl Chem, Kohoku Ku, Yokohama, Kanagawa 2238522, Japan
关键词
D O I
10.1021/ac980757x
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
By utilizing "multiinformation dyes (MIDs)", which have plural spectral change characteristics such as an absorption maximum wavelength (lambda(max)) shift based on a polarity change and an absorbance change due to protonation, novel lambda(max)-tunable ion-selective optodes were proposed and prepared by employing MIDs with membrane solvents having different polarities. For controlling the detecting lambda(max) of the optode, the novel polar membrane solvent [2-[[6-(2-nitrophenoxy)hexyl]oxy]methyl]isobutane-1,3-diol was designed and synthesized, which was used together with a typical membrane solvent nitrophenyl octyl ether. By mixing these two membrane solvents, the lambda(max) position of the optode detection wavelength can be shifted and controlled and was successfully applied to a lambda(max)-tunable Li+-selective optode based on a highly Li+-selective ionophore TTD14C4. The lambda(max) tuning technique is useful for preparing an optode system using a low-cost light source such as a light-emitting diode or a popular laser.
引用
收藏
页码:259 / 264
页数:6
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