制备盐酸普鲁卡因注射剂时要调节其pH值,正确的操作是
A、加酸调pH=3.0~3.5
B、加酸调pH=3.3~5.5
C、加碱调pH=6.5~8.0
D、加碱调pH=7.5~9.5
E、加缓冲盐溶液调pH=6.5~7.5
发布时间:2023-07-24 23:58:21
A、加酸调pH=3.0~3.5
B、加酸调pH=3.3~5.5
C、加碱调pH=6.5~8.0
D、加碱调pH=7.5~9.5
E、加缓冲盐溶液调pH=6.5~7.5