scholarly journals Development and Validation of a Stability-Indicating Micellar Liquid Chromatographic Method for the Determination of Timolol Maleate in the Presence of Its Degradation Products

2014 ◽  
Vol 53 (4) ◽  
pp. 503-510 ◽  
Author(s):  
M. S. Rizk ◽  
H. A. Merey ◽  
S. M. Tawakkol ◽  
M. N. Sweilam
Keyword(s):  
Chromatographic Method ◽  
Degradation Products ◽  
Timolol Maleate ◽  
Stability Indicating ◽  
Liquid Chromatographic Method ◽  
Development And Validation ◽  
Liquid Chromatographic

scholarly journals Determination of Cefdinir by a Stability-Indicating Liquid Chromatographic Method

2005 ◽  
Vol 88 (6) ◽  
pp. 1661-1665 ◽  
Author(s):  
Tushar N Mehta ◽  
Gunta Subbaiah ◽  
Kilambi Pundarikakshudu
Keyword(s):  
Chromatographic Method ◽  
Degradation Products ◽  
Reversed Phase ◽  
Stability Indicating ◽  
Pharmaceutical Ingredients ◽  
Degraded Samples ◽  
Liquid Chromatographic Method ◽  
Phase Liquid ◽  
Liquid Chromatographic

Abstract A simple, fast, specific, stability-indicating, and precise reversed-phase liquid chromatographic method was developed for the determination of Cefdinir in its different dosage forms, i.e., capsules and suspensions. The method was developed and optimized by analyzing the placebo preparation, formulations, and degraded samples of the drug substance according to the International Conference on Harmonization. The proposed method can successfully separate the drug from degradation products formed under stress conditions along with pharmaceutical ingredients such as preservatives. The developed method was used successfully to determine Cefdinir in capsules and Insta-use suspensions. The developed method was found to be linear for a concentration range of 6–14 μg/mL. Average recoveries obtained with the method were 99.3 ± 0.4 and 99.6 ± 0.4% for Insta-use suspensions and capsules, respectively. The method was shown to be specific, precise, and robust.

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