Second, the selectivity depends on the Coulomb interaction on the surface, not the lipophilicity.
第二，选择性只与表面的库伦作用力有关。
2
Drugs with low lipophilicity (ie, low membrane permeability), such as aminoglycosides, are absorbed slowly from solution in the stomach and small intestine;
低亲脂性（即膜通透性低）药物，如氨基糖苷类，经胃和小肠溶液被缓慢吸收。
3
Objective:To investigate the effects of compound compatibility on the stability in gastrointestinal tract, membrane permeability and lipophilicity of panaxnotoginseng saponins (PNS).