scholarly journals RP-HPLC METHOD FOR SIMULTANEOUS ESTIMATION OF FINASTERIDE AND TAMSULOSIN IN TABLET FORMULATIONS

2015 ◽  
Vol 26 (1) ◽  
pp. 45
Author(s):  
Ashu Mittal ◽  
Shikha Parmar ◽  
Syed Sarim Imam ◽  
Sadaf J. Gilani ◽  
Mohd Aqil
INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (03) ◽  
pp. 46-53
Author(s):  
H. Potluri ◽  

A simple and precise stability indicating RP-HPLC method was developed for the simultaneous estimation of acetyl cysteine and ambroxol hydrochloride in bulk and dosage form. Experimental design based evaluation using a 23 full factorial design was applied to evaluate coefficient, ANOVA for the establishment of robustness nature of the method. Kromosil (250 mm x 4.6 mm, 5 μ) C18 column at 274 nm of UV detection was used. A composition of 0.1 % ortho phosphoric acid and acetonitrile in the ratio of 28:72 (V:V) was used as the mobile phase with a flow rate of 1.0 mL min-1. Linearity was established over the concentration range of 50-300 μg. mL-1 for acetyl cysteine and 7.5-45 μg mL-1 for ambroxol hydrochloride. The proposed method was validated and was successfully utilized for the quantitative analysis of tablet formulations containing acetyl cysteine and ambroxol hydrochloride.


2018 ◽  
Vol 14 (4) ◽  
pp. 412-418
Author(s):  
Rasmita Patra ◽  
Prakash Narayana Reddy ◽  
N.S. Sampath Kumar ◽  
Vijaya R. Dirisala

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
J. Saroja ◽  
Anantha Lakshmi P.V. ◽  
Y. Rammohan ◽  
D. Divya Reddy

Abstract Background We describe a “stability-indicating liquid chromatography” technique for the estimation of dimethicone (DEC) and dicyclomine hydrochloride (DEH) in the established tablet formulations. Individual quantification of DEH and DEC was reported. But simultaneous quantification of DEH and DEC was lacking. DEH and DEC were analysed on an “XTerra C18 column (250 mm × 4.6 mm, 5 μm)” with the mobile phase solvent run isocratically with 0.1M K2HPO4-acetonitrile (55:45, v/v) on a flow speed of 1.0 mL/min. Results The chromatographic run period for the DEC and DEH assay was 6.0 min with retention times of 2.134 and 2.865 min, respectively. The method was validated for accuracy (99.453 to 100.417% and 99.703 to 100.303% recovery values for DEH and DEC, respectively), precision (RSV value 0.135% for DEC and 0.171% for DEH), linearity (5–15 μg/mL for DEH and 20–60 μg/mL for DEC), selectivity (no hinderance from excipients) and specificity (no hinderance from degradants) recovery. Conclusion The developed stability-indicating liquid chromatography process was well applied to established tablet formulations.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Ramakrishna Kommana ◽  
Praveen Basappa

The present paper describes the development of quick stability indicating RP-HPLC method for the simultaneous estimation of codeine phosphate and chlorpheniramine maleate in the presence of its degradation products, generated from forced degradation studies. The developed method separates codeine phosphate and chlorpheniramine maleate in impurities/degradation products. Codeine phosphate and chlorpheniramine maleate and their combination drug product were exposed to acid, base, oxidation, dry heat, and photolytic stress conditions, and the stressed samples were analysed by proposed method. The proposed HPLC method utilizes the Shimadzu HPLC system on a Phenomenex C18 column (, 5 μ) using a mixture of 1% o-phosphoric acid in water : acetonitrile : methanol (78 : 10 : 12) mobile phase with pH adjusted to 3.0 in an isocratic elution mode at a flow rate of 1 mL/min, at 23°C with a load of 20 μL. The detection was carried out at 254 nm. The retention time of codeine phosphate and chlorpheniramine maleate was found to be around 3.47 min and 9.45 min, respectively. The method has been validated with respect to linearity, robustness, precision, accuracy, limit of detection (LOD), and limit of quantification (LOQ). The developed validated stability indicating HPLC method was found to be simple, accurate, and reproducible for the determination of instability of these drugs in bulk and commercial products.


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