Determination of Furosemide and Zonisamide as a Drug Substance and in Dosage Form by Ion Pair–Reversed Phase Liquid Chromatographic Technique

Author(s):  
B. Udaykumar Rao
2010 ◽  
Vol 7 (4) ◽  
pp. 1326-1333 ◽  
Author(s):  
Freddy H. Havaldar ◽  
Dharmendra L. Vairal

A simple, specific, accurate and economical gradient reversed phase liquid chromatographic (RP-HPLC) method was developed and subsequently validated for the determination of glimipiride, rosiglitazone and pioglitazone hydrochloride. Separation was achieved with a nucleodur C–18 column having 250×4.6 mm i.d. with 5 µm particle size and water HPLC grade adjusted to pH 3.0 using diluted orthophosphoric acid and acetonitrile (80:20 v∕v) with gradient program as eluent at a constant flow rate of 0.8 ml per min. UV detection was performed at 215 nm. The retention time of glimipiride, rosiglitazone and pioglitazone hydrochloride were about 17.9 min, 6.31 min and 8.24 min respectively. This method is simple, rapid and selective and can be used for routine analysis of antidiabetic drugs in pharmaceutical preparation. The proposed method was validated and successfully used for estimation of glimipiride, rosiglitazone and pioglitazone hydrochloride in the pharmaceutical dosage form.


2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Dimal A. Shah ◽  
Dixita J. Suthar ◽  
Sunil L. Baldania ◽  
Usman K. Chhalotiya ◽  
Kashyap K. Bhatt

An isocratic, reversed phase-liquid-chromatographic assay method was developed for the quantitative determination of ibuprofen and famotidine in combined-dosage form. A Brownlee C18, 5 μm column with mobile phase containing water : methanol : acetonitrile (30 : 60 : 10, v/v/v) was used. The flow rate was 1.0 mL/min, and effluents were monitored at 264 nm. The retention times of ibuprofen and famotidine were 4.9 min and 6.8 min, respectively. The linearity for ibuprofen and famotidine was in the range of 2–20 μg/mL and 0.1–10 μg/mL, respectively. The proposed method was validated with respect to linearity, accuracy, precision, specificity, and robustness. The method was successfully applied to the estimation of ibuprofen and famotidine in combined dosage form.


2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Snehal J. More ◽  
Suparna S. Tandulwadkar ◽  
Ajinkya R. Nikam ◽  
Atul S. Rathore ◽  
L. Sathiyanarayanan ◽  
...  

A simple, precise, and accurate reversed-phase liquid chromatographic method has been developed for the simultaneous determination of paracetamol (PCM), chlorzoxazone (CHZ), and nimesulide (NIM) in pharmaceutical dosage form. The chromatographic separation was achieved on a Thermo Hypersil GOLD C18 column (250 × 4.6 mm i.d., 5 μm particle size). The mobile phase consisted of water : acetonitrile (55 : 45 v/v). The flow rate was set to 1.2 mL min−1 and UV detection was carried out at 275 nm. The retention time () for PCM, CHZ, and NIM was found to be 2.69 ± 0.02, 4.61 ± 0.01, and 9.55 ± 0.02 min, respectively. The validation of the proposed method was carried out for linearity, precision, robustness, limit of detection, limit of quantitation, specificity, and accuracy. The linear dynamic ranges were 32.5–65.0 μg mL−1 for PCM, 37.5–75.0 μg mL−1 for CHZ, and 10.0–20.0 μg mL−1 for NIM. The developed method can be used for routine quality control analysis of titled drugs in pharmaceutical dosage form.


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