Remote optical fibre microsensor for monitoring BTEX in confined industrial atmospheres

被引:24
作者
Silva, Lurdes I. B. [1 ,2 ]
Rocha-Santos, Teresa A. R. [1 ]
Duarte, A. C. [2 ]
机构
[1] Inst Piaget, ISEIT Viseu, P-3515776 Lordosa, Viseu, Portugal
[2] Univ Aveiro, CESAM & Dept Chem, P-3810193 Aveiro, Portugal
关键词
BTEX detection; Optical fibre sensing; Confined atmospheres monitoring; Real-time analysis; ALCOHOLIC COMPOUNDS; SENSOR;
D O I
10.1016/j.talanta.2008.12.011
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A portable optical fibre sensor has been developed for remote monitoring of benzene, toluene, ethylbenzene, p-xylene, m-xylene and o-xylene (BTEX). Firstly, the analyser was tested for calibration and it, analytical performance for BTEX monitoring compared with a more classical analytical method, namely gas chromatography coupled to a flame ionization detector (GC-FID). The developed remote sensor shows several analytical advantages such as, high analytical sensitivity and accuracy. good linearity and stability of the analytical signal and short analytical time. Secondly, the optical fibre based sensor was applied to air monitoring for detection and quantification of BTEX in a confined industrial environment. The analytical signal measurement was performed by wireless at 20 m of distance from the local of analysis. Besides, the reported sensor showed a high degree of portability, compact design and high analytical performance for remote BTEX monitoring, in situ and in real-time. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:548 / 552
页数:5
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