HCl gas sensing properties of TPPH2 dispersed in various copolymers

被引：41

作者：

Nakagawa, K ^{[1
]}

Kumon, K

Tsutsumi, C

Tabuchi, K

Kitagawa, T

Sadaoka, Y

机构：

[1] Niihama Natl Coll Technol, Dept Appl Chem & Biotechnol, Niihama 7928580, Japan

[2] Ehime Univ, Fac Engn, Dept Mat Sci & Engn, Matsuyama, Ehime 7908577, Japan

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2000年 / 65卷 / 1-3期

关键词：

gas sensor; optochemical sensor; UV-Vis spectrum; porphyrin; hydrogen chloride; environmental monitoring;

D O I：

10.1016/S0925-4005(99)00469-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Composite films of tetraphenylporphyrin embedded in various of polymer matrix were prepared and their optical responses to hydrogen chloride (HCl) gas were examined. The absorbance of the Soret- and Q-bands for free-base tetratphenylporphyrin is reversibly sensitive to parts per million (ppm) levels of HCl. The lower T-g of polymer matrix than the sensing temperature is effective to enhance the sensitivity of the Soret- and Q-band region. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：138 / 140

页数：3