Rectangular mode of operation for detecting pesticide residue by using a single SnO2-based gas sensor

被引：44

作者：

Huang, XJ

Liu, JH ^{[1
]}

Shao, DL

Pi, ZX

Yu, ZL

机构：

[1] Chinese Acad Sci, Hefei Inst Intelligent Machines, Hefei 230031, Peoples R China

[2] Univ Sci & Technol China, Dept Chem, Anhua 230026, Peoples R China

[3] Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China

[4] Anhui Natl Ctr Agr Standardizat & Supervis, Hefei 230022, Peoples R China

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2003年 / 96卷 / 03期

基金：

中国国家自然科学基金;

关键词：

SnO2 gas sensor; dynamic measurements; pesticide residue;

D O I：

10.1016/j.snb.2003.07.006

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new rapid detecting method (called dynamic measurements) was reported to detect and distinguish the presence of two pesticide gases in the ambient atmosphere. The method employed only a single SnO2-based gas sensor in a rectangular temperature mode to perform the qualitative analysis of a binary gas mixture (acephate and trichlorphon) in air. Experimental results showed that high selectivity of the sensor achieved in the range of 250-300 degreesC and modulating frequency 20 mHz, one can easily observe the qualitative difference among the response to pure acephate and trichlorphon gases of the same concentration and to the mixture. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：630 / 635

页数：6

共 28 条

[21] ODOR DISCRIMINATION WITH AN ELECTRONIC NOSE [J].