已知空白栓重2g,鞣酸置换价1.6,制备每粒含鞣酸0.2g栓剂100粒,基质用量为A.80g B.92.0g C.168.0g D.187.5g ...

作者: tihaiku 人气: - 评论: 0
问题 已知空白栓重2g,鞣酸置换价1.6,制备每粒含鞣酸0.2g栓剂100粒,基质用量为
选项 A.80g B.92.0g C.168.0g D.187.5g E.200g
答案 D
解析 本题考查栓剂中置换价的计算。置换价(f)的计算公式为:f=W/[G-(M-W)]; 式中,f——置换价; W——每个栓中主药重,g; G——空白栓重,g; M——含药栓重,g。 代入题中数据为1.6=0.2/[2-(M-0.2)]; M=2.075g; 每粒基质的用量为2.075-0.2=1.875g; 100粒栓剂基质的用量为187.5g。

相关内容:空白,栓重,鞣酸,置换,每粒,栓剂,100粒,基质,用量,B.92.0g,C.168.0g,D.187.5g

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