Janati J, Huber R J, Cohen R, Kolesar E S
Aviat Space Environ Med. 1981 Nov;52(11 Pt 1):666-71.
A critical assessment is made concerning the application of a chemically sensitive field-effect transistor (CHEMFET) to detect organophosphorous compounds and pesticides in the ambient environment at the ppb concentration level. A performance analysis of the four types of CHEMFET structures -- enzyme-coupled, galvanostatic, catalytic, and work-function -- is presented. The integration of chemically sensitive polymers with the field-effect transistor structure is addressed. The focus of the assessment deals with practical performance criteria such as sensitivity, response time, reversibility, shelf-life, operational life, and lifetime.
对化学敏感场效应晶体管（CHEMFET）在环境中检测十亿分之一浓度水平的有机磷化合物和农药的应用进行了批判性评估。给出了四种类型CHEMFET结构——酶耦合型、恒电流型、催化型和功函数型——的性能分析。探讨了化学敏感聚合物与场效应晶体管结构的集成。评估的重点涉及诸如灵敏度、响应时间、可逆性、保质期、使用寿命和寿命等实际性能标准。
