电子鼻在环境监测中的应用与进展

电子鼻是一种模拟生物嗅觉工作原理的新形仿生检测系统,通常由交叉敏感的气体传感器阵列和适当的模式识别算法组成,可用于检测、分析和鉴别简单或复杂气味.作为新近发展的检测方法,它具有通用、快速、多功能、使用简单、低成本、便携、可自动化和在线监测等优势,在食品加工、环境临测、公共安全和医学诊断等诸多领域得到广泛的应用.随着在线...

Application and Progress of Electronic Nose in Environmental Monitoring

An electronic nose is a bionic instrument comprising an array of electronic chemical sensors with partial specificity and an appropriate pattern-recognition system,which mimic the mammal olfaction system and can recognize simple or complex odors.As a newly developed measurement method,electronic nose with many advantages including general purpose,fast analysis,versatile,easy to use,low cost,portable,suitable for automated and on-line monitoring has been used widely in the areas of food industry,environmental monitoring,public safety and medical diagnostics.With the growing demand for on-line and continuous monitoring of environmental applications,electronic nose also shows its potential in environmental monitoring.Based on brief introduction of the concept,principles and history of electronic nose,application and progress of electronic nose in environmental monitoring were reviewed.Conclusion is drawn that electronic nose is suitable in large sample scale screening,emergent pollution alarm and pollution sources monitoring.