Saturday, September 17, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:根据巴比妥类药物的结构特点可采用以下方法对其进行定量分析,其中不...
Tuesday, September 13, 2022
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:一般品种留样考察数量应不少于1次全检量的()倍。...
Thursday, September 15, 2022
问题:酸碱滴定法测定乙酰水杨酸的含量,加中性乙醇的作用是什么?...
Saturday, September 17, 2022
Saturday, September 17, 2022
问题:四环素差向异构化是由于A环上手性碳原子C<sub>4</sub>...
Thursday, September 15, 2022
Tuesday, September 13, 2022
问题:巴比妥类药物与重金属离子的反应是由于结构中含有丙二酰脲基团。...
Tuesday, September 12, 2023
Saturday, September 17, 2022
Thursday, September 15, 2022
Saturday, March 4, 2023
Friday, November 25, 2022
问题:取水杨酸少许,加水溶解,加FeCl<sub>3</sub>试液,...
Tuesday, September 13, 2022
Thursday, September 15, 2022
Thursday, September 15, 2022
问题:中国药典正文中所收载药品或制剂的质量标准的内容包括()。A、类别B、性状C、检查D、鉴别E、含量测定...
Tuesday, September 12, 2023