doubling dilution

Methods The broth doubling dilution method has been adopted. And the minimal inhibitory concentration ( MIC) and minimum bactericidal concentration ( MBC) of baicalin injection on 161 common pathogenic bacteria obtained from clinical practice were determined.

方法采用液体倍比稀释法，测定黄芩苷注射液对临床分离的161株常见病原菌的最低抑菌浓度（MIC）及最低杀菌浓度（MBC）。

Methods MIC ( minimal inhibitory concentration) was determined by using tube doubling dilution method.

方法用试管二倍稀释法测定鱼腥草和左氧氟沙星的最低抑菌浓度；

Methods The MIC was determined by the tube doubling dilution method, and the effect of the drugs was assessed by half survival time of the mice.

方法采用二倍稀释法测定最低抑菌浓度（MIC），以半数动物存活时间为指标比较药物对实验性结核病的疗效。