scholarly journals STABILITY-INDICATING HIGH-PERFORMANCE THIN-LAYER CHROMATOGRAPHY METHOD FOR SIMULTANEOUS ESTIMATION OF FORMOTEROL FUMARATE DIHYDRATE AND FLUTICASONE PROPIONATE IN BULK DRUG AND PHARMACEUTICAL DOSAGE FORM

Author(s):  
RAJASHI B PHARATE ◽  
SUNEELA S DHANESHWAR

Objective: The objective of the present work was to develop validated stability-indicating high-performance thin-layer chromatographic method for simultaneous estimation of formoterol fumarate dihydrate (FFD) and fluticasone propionate (FP) in bulk drug and pharmaceutical dosage form. Methods: Pre-coated silica gel aluminum plates 60 F-254 were used as stationary phase. The mixture of toluene:ethyl acetate:formic acid (98%) (6:4:0.1; v/v/v) was used as a mobile phase. The densitometric quantification was carried out at 233 nm. The method was validated according to the ICH guidelines. The specificity and stability indicating the capability of the method were proven though degradation studies. Both drugs were subjected to acid (0.1N HCl) and base (0.1N NaOH) hydrolysis, oxidation (3% v/v H2O2), photolytic, and neutral degradation conditions. Results: The selected mobile phase resolved peaks of FFD and FP with Rf values 0.27±0.10 and 0.64±0.10, respectively. Determination coefficients of calibration curves were found to be 0.998 and 0.999 in the range of 1–3.5 μg/spot and 10–60 μg/spot for FFD and FP with an accuracy of 99.09% for FFD and 99.20% for FP. The degradation products of FFD and FP were resolved from the pure drug with significant differences in their retention factor values. Conclusion: The developed method is simple, accurate and can be successfully applied for quantification of FFD and FP in bulk drug and pharmaceutical dosage form, contributing to improve the quality control and assure the therapeutic efficacy.

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Atul S. Rathore ◽  
Lohidasan Sathiyanarayanan ◽  
Kakasaheb R. Mahadik

A simple, sensitive, precise, specific and stability indicating high-performance thin-layer chromatographic (HPTLC) method for the determination of emtricitabine both in bulk drug and pharmaceutical dosage form was developed and validated. The method employed aluminium plates precoated with silica gel G60 F254 as the stationary phase. The solvent system consisted of toluene : ethyl acetate : methanol (2 : 8 : 1, v/v/v). This solvent system was found to give compact spots for emtricitabine with value . Densitometric analysis of emtricitabine was carried out in the absorbance mode at 284 nm. Linear regression analysis showed good linearity with respect to peak area in the concentration range of 30–110 ng spot−1. The method was validated for precision, limit of detection (LOD), limit of quantitation (LOQ), robustness, accuracy and specificity. Emtricitabine was subjected to acid and alkali hydrolysis, oxidation, neutral hydrolysis, photodegradation and dry heat treatment. Also the degraded products peaks were well resolved from the pure drug with significantly different values. Statistical analysis proved that the method is repeatable and specific for the estimation of the said drug. As the method could effectively separate the drugs from their degradation products, it can be employed as a stability indicating method.


INDIAN DRUGS ◽  
2013 ◽  
Vol 50 (05) ◽  
pp. 36-43
Author(s):  
N. R Dighade ◽  
◽  
M. D Shende ◽  
A. V Kasture

A simple and accurate high performance thin layer chromatographic (HPLTC) method has been developed and validated as per ICH guidelines for estimations of Ciprofloxacin (CP) and Ornidazole (ORN) in combined dosage form. The mobile phase was acetonitrile: toluene: water and triethylamine (5.5:1.8:1.5:1.6 V/V) was found to be best which gave high resolution with Rf 0.16 and 0.84 for ciprofloxacin and ornidazole respectively. The linearity of ciprofloxacin and ornidazole was found to be in the range of 0.4 to 0.8 µg/mL and 0.4 to 0.8 µg/mL, respectively. The coefficient of correlation (r2 ) was found to be greater than 0.989 for both the components by this method. The tablet analyses result (n = 5) were found to be > 100.84 % by HPTLC for both the components. The proposed method was found to be simple, accurate and suitable for routine quality control of marketed formulations containing these drugs.


INDIAN DRUGS ◽  
2020 ◽  
Vol 57 (03) ◽  
pp. 62-68
Author(s):  
Khaleel Noorbasha ◽  
S. K. Abdul Rahaman

Specific stability-indicating reversed-phase high performance liquid chromatography (HPLC) method has been developed and validated for the quantification of tolvaptan in bulk drug and pharmaceutical dosage form. The optimized conditions for the developed HPLC method are; Inertil ODS-3V column (150 x 4.6 mm, 5.0 mm) maintained at 30°C with mobile phase consisting of 0.1% ortho phosphoric acid and acetonitrile in the ratio 40:60%v/v on isocratic mode at flow rate of 1.0 mL/min and detection wavelength 254 nm. The retention time of tolvaptan was found to be 2.59 min with linearity in the concentration range from 37.5 – 225.0 µg/mL, respectively. The mean percentage recovery of tolvaptan was found to be 98.30 – 101.13 %, respectively. The percent relative standard values were less than 2.0 at all the levels and indicates a satisfactory accuracy and precision. The robustness of the method found to meet the acceptance criteria. The stress study against qualified working standard of Tolvaptan, indicated that the developed HPLC method was stability- indicating, conducted as per ICH requirements. The developed method can be handy in the quality control of bulk and pharmaceutical dosage forms.


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