Photostable optical oxygen sensing material: Platinum tetrakis(pentafluorophenyl)porphyrin immobilized in polystyrene

被引：185

作者：

Lee, SK ^{[1
]}

Okura, I ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT BIOCHEM,YOKOHAMA,KANAGAWA 226,JAPAN

来源：

ANALYTICAL COMMUNICATIONS | 1997年 / 34卷 / 06期

关键词：

D O I：

10.1039/a701130j

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An oxygen sensing material based on platinum tetrakis(pentafluorophenyl) porphyrin (PtTFPP) has been developed and characterized using luminescence quenching by oxygen of PtTFPP molecules immobilized in polystyrene (PS) polymer. This is a photostable sensing material that exhibits minimal deterioration (only 9.2% decrease of initial intensity after continuous illumination for 50 h with excitation at 508 nm). The signal changes of the PtTFPP/PS membrane are large enough to allow quantification of oxygen with good sensitivity (I-0/I-100 > 3). Response times are 18 s for de-oxygenated to oxygenated conditions and 1 min for the reverse conditions.

引用

页码：185 / 188

页数：4

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