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LD50是50％lethaldose的缩写，表示某种有毒物质能使半数实验用白鼠致死的一次口服剂量。LD50相对毒性1mg／kg体重剧毒性—50mg／kg体重严重毒性50－500mg／kg体重高毒性0．5—5g／kg体重中等毒性5－15g／kg体重轻微毒性＞15八g体事极低度毒性LD_50表示什么?
LD50 is an acronym for 50% lethaldose, indicating an oral dose of lethality that a toxic substance can cause in half of the experiments in mice. LD50 Relative Toxicity 1mg / kg Body weight Severe toxicity -50mg / kg Body weight Severe toxicity 50-500mg / kg Body weight High toxicity 0.5-5g / kg Body weight Moderate toxicity 5-15g / kg Body weight Mild toxicity> 15g Body weight Low toxicity LD_50 what does that mean?