补体滴定时,若1:60的0.12ml补体为1个“实用单位”,则2个“实用单位”为A:1:50,0.2ml B:1:40,0.2ml C:1:30,0.2ml D

admin2020-12-24  10

问题 补体滴定时,若1:60的0.12ml补体为1个“实用单位”,则2个“实用单位”为

选项 A:1:50,0.2ml
B:1:40,0.2ml
C:1:30,0.2ml
D:1:25,0.2ml
E:1:20,0.2ml

答案A

解析按比例公式:0.12*2760=0.2(反应体系中补体的体积固定为0.2ml)/X,求得X=50,即2个“实用单位”应为1:50稀释的补体0.2ml。
转载请注明原文地址:https://ti.zuoweng.com/ti/O9PeKKKQ