|
|||||
|
|
Chlorpyrifos Detection by Piezoelectric Biosensor Based on Acetylcholinesterase Immobilization |
|
| Authors: | GU Yunxiuzi XU Yanli SHANG Zhanjiang |
| Affiliation: | 1. College of Agriculture,Northeast Agricultural University,Harbin 150030,China;Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Harbin 150081,China 2. Northeast Institute of Geography and Agroecology,Chinese Academy of Sciences,Harbin 150081,China |
| Abstract: | Acetylcholinesterase (AChE) was immobilized on multilayer films assembled by poly diallyldimethylammonium chloride (PDDA) and ι-carrageenan (IC) on silver-coated crystal electrode surfaces to detect the chlorpyrifos belonging to the organophosphates pesticide.Mass sensitive quartz crystal microbalance (QCM) was used to study the effect of AChE concentration and pH of phosphate buffer solution on immobilized acetylcholinesterase.The optimized conditions were as follows: pH was 6.0 which was near isoelectric ... |
| Keywords: | acetylcholinesterase quartz crystal microbalance (QCM) self-assemble chlorpyrifos |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |