代谢
百草枯口服暴露后吸收不良。它不被代谢,而是被还原为一个不稳定的自由基,然后再次氧化重新形成阳离子并产生超氧阴离子。它大部分通过尿液排出,小部分也通过粪便排出(A606, L1008)。
Paraquat is poorly absorbed after oral exposure. It is not metabolized but is reduced to an unstable free radical which is then re-oxidized to reform the cation and produce a superoxide anion. It is excreted moslty in the urine,and in small fraction also in the feces (A606, L1008).
来源:Toxin and Toxin Target Database (T3DB)