OPTICAL FIBER SENSOR FOR DETECTION OF HYDROGEN-CYANIDE IN AIR .2. THEORY AND DESIGN OF AN AUTOMATIC DETECTION SYSTEM

被引：18

作者：

JAWAD, SM

ALDER, JF

机构：

[1] Department of Instrumentation and Analytical Science, UMIST, Manchester, M60 1QD

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 246卷 / 02期

关键词：

SPECTROPHOTOMETRY; AIR; FIBEROPTIC SENSOR; HYDROGEN CYANIDE;

D O I：

10.1016/S0003-2670(00)80959-9

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An automatic spectrophotometric instrument is described which monitors the colour change due to the reaction of cyanogen chloride with 4-methylpyridine and pyrimidinetrione impregnated on XAD-7 resin beads by measuring the spectral absorption at 530-565 nm using a green light emitting diode with peak intensity at 560 nm. Background absorption was monitored using a red light emitting diode. Randomised fibre optic bundles were used to collect and guide the light to silicon planar photodiode detectors.

引用

页码：259 / 266

页数：8