Acetylcholinesterase was extracted from chicken brain, and the organophosphorus pesticide residues were determinated by enzyme inhibition spectrophotometry.摘要以鸡脑为酶源提取乙酰胆碱酯酶，利用酶抑制分光光度法检测蔬菜中有机磷农药残留量。
Results showed that joint inhibitory effects of organophosphorus pesticides on acetylcholinesterase primarily were synergistic and additive, with only rare antagonistic effects.结果表明有机磷农药对乙酰胆碱酯酶的联合抑制作用主要表现为协同作用与相加作用，拮抗作用较少发生。
