life-span n toxicity test 终生毒性试验
OBJECTIVE:To explore the acute toxicity on mice and lipid-lowering effect on rats of N-trimethyl chitosan iodide (TMCI).
目的：研究碘化壳聚糖季铵盐（TMCI）对小鼠的急性毒性作用和对大鼠的降脂作用。
By using the inductive effect index I as a characteristic bond-parameter, a formula is given describing the relation between the structure of N-nitrosamines and its acute toxicity.
亚硝胺类化合物的结构与毒性之间存在着一定的相互关系。用诱导效应指数I作为结构的特征键参数可以得到烷基亚硝安的结构与毒性的定量关系。
To investigate the acute oral toxicity of N, O-carboxymethyl chitosan in chicken and evaluate the security of the drug;
研究N，O-羧甲基壳聚糖对鸡的急性毒性，评价该药的安全性；
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