Photoluminescent oxygen sensing on a specific surface area using phosphorescence quenching of Pt-porphyrin

被引：35

作者：

Lee, SK ^{[1
]}

Okura, I ^{[1
]}

机构：

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

来源：

ANALYTICAL SCIENCES | 1997年 / 13卷 / 04期

关键词：

optical sensor; phosphorescence quenching; platinum octaethylporphyrin; Stern-Volmer plot; photobleaching;

D O I：

10.2116/analsci.13.535

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A highly reliable optical sensor for oxygen-pressure measurement was developed. It was based on the phosphorescence quenching of platinum octaethylporhyrin incorporated in polymer films by oxygen. In this work, in order to overcome the shortcomings when the traditional spectrophotometer is used for oxygen sensing, the sensor behaviors were studied using a CCD-camera scanning technique. The Stern-Volmer plots of oxygen sensors showed improved linearity, compared with those of the traditional luminometer. The sensor was proved to have a good operational stability and <10% of the photobleaching was observed after storage for more than 1 year in the absence of light at room temperature.

引用

页码：535 / 540

页数：6