摘要
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、环境监测、公共安全和医学诊断等诸多领域得到广泛的应用。随着在线连续在线监测的需求越来越迫切,电子鼻也显示了其在环境监测中的应用潜力。文章首先介绍了电子鼻技术的概念、原理、发展历史等信息,在此基础上综述了电子鼻技术在大气、水、土壤和固体废物等环境监测中的应用与进展,并指出电子鼻在可定位在大样本初筛、突发污染应急快速筛查和污染源排放报警性监测等方面。
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.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2011年第10期112-117,122,共7页
Environmental Science & Technology
基金
国家重点实验室专项基金课题(09Z01ESPCT)
"十一五"科技支撑计划(2006BAD30B03-02)
博士后基金资助(20080430356)
关键词
环境监测
电子鼻
传感器阵列
模式识别
environmental monitoring
electronic nose
sensor array
pattern recognition
