Organophosphorus pesticides (OPs) have been widely used in agricultural production and water, landscape pest control [1], [2], [3], and yet it often used in intentional (suicides and homicides) and accidental poisonings, and also results in other adverse health effects, due to its high toxicity and easy availability. It is estimated that there are 3 million cases of pesticide poisoning and 220,000 deaths annually worldwide, among which suicide is the most common issue [4], [5], [6].