Silva Lurdes I B, Rocha-Santos Teresa A P, Duarte A C
CESAM & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
Talanta. 2009 Apr 30;78(2):548-52. doi: 10.1016/j.talanta.2008.12.011. Epub 2008 Dec 11.
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 its 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.
已开发出一种便携式光纤传感器，用于对苯、甲苯、乙苯、对二甲苯、间二甲苯和邻二甲苯（BTEX）进行远程监测。首先，对该分析仪进行了校准测试，并将其用于BTEX监测的分析性能与一种更传统的分析方法（即气相色谱-火焰离子化检测器联用，GC-FID）进行了比较。所开发的远程传感器具有若干分析优势，如分析灵敏度和准确度高、分析信号线性度和稳定性良好以及分析时间短。其次，将基于光纤的传感器应用于空气监测，以检测和定量密闭工业环境中的BTEX。分析信号测量在距分析地点20米处通过无线方式进行。此外，所报道的传感器在远程BTEX监测方面具有高度便携性、紧凑设计和高分析性能，可实现现场实时监测。
