Solubility Behavior of N-Carbobenzoxy-l-2-phenylglycine in 11 Pure and a Binary Ethanol + Water Solvent Systems at 283.15–323.15 K

Author(s):  
Yue Zhao ◽  
Jingxuan Qiu ◽  
Shen Hu ◽  
Haishuang Huang ◽  
Hui He ◽  
...  
2016 ◽  
Vol 680 ◽  
pp. 534-537 ◽  
Author(s):  
Jing Xu

Ultrafine drug powders have higher bioavaibability than the larger signed particles. Ultrafine powders of clarithromycin were produced by anti-solvent recrystallization with the acetone - water solvent systems. The effects of volume ratio of clarithromycin acetone solution to anti-solvent, stirring speed, precipitation temperature and precipitation time on the preparation process were investigated. The results show that ultrafine powders can be yielded and well-controlled under the following optimal conditions: the volume ratio of clarithromycin acetone solution to anti-solvent 1:10, stirring speed 900 r/min, precipitation temperature 20°C, and precipitation time 10 min. The ultrafine powders with the rod-shape and the mean diameter of 1.8μm with the narrow distribution were successfully obtained. The yield of drug powders is more than 83%. The powders were analyzed with FT-IR and metalloscope. The purity of drug powders is more than 98%, according with Chinese Pharmacopoeia. The operation of the experiment was very simple, and the powders were separated easily.


2000 ◽  
Vol 20 (5) ◽  
pp. 561-567 ◽  
Author(s):  
Kiyoshi Okada ◽  
Takayuki Motohashi ◽  
Yoshikazu Kameshima ◽  
Atsuo Yasumori

2015 ◽  
Vol 9 (1) ◽  
Author(s):  
Caitlin E. Derricott ◽  
Emily A. Knight ◽  
William E. Acree ◽  
Andrew SID Lang

2014 ◽  
Vol 14 (11) ◽  
pp. 6024-6032 ◽  
Author(s):  
Seung-Heon Lee ◽  
Min-Jeong Koo ◽  
Mojca Jazbinsek ◽  
O-Pil Kwon

Sign in / Sign up

Export Citation Format

Share Document