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百草枯(paraquat,PQ)商品名一扫光、克芜踪等,化学名1,1`二甲基-4,4`-联吡啶阳离子盐,一般为其二氯化物(分子式为C12H14N2·2Cl,分子量257.2)或二硫酸甲酯。我国目前市售多为20%的溶液,纯品为白色结晶,市售溶液加入着色剂呈蓝色。它是一种高效能的非选择性接触型除草剂,喷洒后起效迅速,进入土壤后迅速失活,在土壤中无残留,因此被广泛的应用。该农药尽管在毒理学分类上被列为中等毒性毒物,但由于中毒没有特效解毒剂,并具有很高的病死率,临床上列为剧毒毒物。因广泛应用且易买,近年来中毒人数呈上升趋势,且口服自杀是中毒的主要原因。本文就所收集的文献从多方面、多
Paraquat (PQ) product name swept away the light, grams of Wu trace, the chemical name 1,1 `dimethyl -4,4` -bipyridinium cation salt, usually the dichloride (molecular formula C12H14N2 · 2Cl , Molecular weight 257.2) or methyl disulfate. China currently commercially available as much as 20% of the solution, pure white crystal, commercially available solution added coloring agent was blue. It is a highly effective non-selective contact herbicide, spraying quick onset, quickly deactivated after entering the soil, no residue in the soil, it is widely used. Although the pesticide is classified as a moderately toxic poison in terms of toxicological classification, it is clinically considered to be a highly toxic poison because it has no specific antidote and has a high case fatality rate. Due to the widespread application and easy to buy, the number of poisoning has been on the rise in recent years, and oral suicide is the main reason of poisoning. This article on the collection of literature from many aspects and more