A.A hurricane killed eight people.B. Eight people died in a hurricane.
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反相TLC检查头孢羟氨苄中有关物质时,所用固定液
A. 青霉素酶
B. 醋酸盐缓冲液(PH4.6)
C. 咪唑溶液
D. 正十四烷的正己烷溶液
E. 茚三酮溶液
A.A dagger killed the tourist.B. The tourist was killed with a dagger.
采用水解反应鉴别青霉素V钾时,所用试剂
A. 青霉素酶
B. 醋酸盐缓冲液(PH4.6)
C. 咪唑溶液
D. 正十四烷的正己烷溶液
E. 茚三酮溶液
汞量法测定青霉素钠时,所用试剂
A. 青霉素酶
B. 醋酸盐缓冲液(PH4.6)
C. 咪唑溶液
D. 正十四烷的正己烷溶液
E. 茚三酮溶液