药典中药物晶型的问题?在找药物晶型的相关资料,以下是《美国药典》中的内容,请问其中的A和B是表示不同的晶型吗? 求解答 Identification— A: Infrared Absorption 197K. B: Dissolve about 50 mg of Ubidecarenone in 1 mL of ethyl ether, and add 10 mL of dehydrated alcohol. To 2 mL of this solution, add 3 mL of dehydrated alcohol and 2 mL of dimethyl malonate, add 1 mL of potassium hydroxide solution (1 in 5) dropwise, and mix: a blue color appears.查看更多7个回答 . 16人已关注