scholarly journals DEVELOPMENT, EVALUATION AND RP-HPLC METHOD FOR SIMULTANEOUS ESTIMATION OF QUERCETIN, ELLAGIC ACID AND KAEMPFEROL IN A POLYHERBAL FORMULATION

Author(s):  
SHALINI K. ◽  
ILANGO K.

Objective: The current study was planned to develop polyherbal tablet formulation, standardization and evaluation for mitigating the symptoms of polycystic ovarian syndrome (PCOS). To control the issue of PCOS in women by the utilization of newly developed polyherbal tablet formulation. Methods: The polyherbal tablets were prepared using a hydroalcoholic extract of the selected medicinal plants viz. Asparagus racemosus, Bauhinia variegata, Caesalpinia bonducella, Saraca asoca, and Symplocos racemosa with the help of a super disintegrant addition technique using crospovidone, kyron T-314 and pregelatinized starch in various percentages. Evaluation assessments such as pre-formulation studies, weight variation, hardness, friability, thickness, disintegration, IR compatibility and simultaneous estimation of quercetin, ellagic acid and kaempferol by RP-HPLC method were done. Results: The results reveal that preformulation and evaluation parameters were satisfactory and found to be within an acceptable limit. The Fourier transform infrared spectroscopy (FTIR) compatibility displays no chemical interaction amongst the hydroalcoholic extract of polyherbal formulation and excipients. In simultaneous estimation, the retention time of quercetin, ellagic acid, and kaempferol were found to be 4.86, 6.96 and 10.01 min respectively. The linearity of quercetin, ellagic acid and kaempferol were found in the range of 0-200 µg/ml with correlation coefficients (R2>0.997) within the tested ranges. The LOD and LOQ values of quercetin, ellagic acid and kaempferol were found to be 11.86, 2.63, 5.28 µg/ml and 35.95, 7.98, 16.00 µg/ml respectively. The % RSD values were found to be less than 2 showed the optimized method is precise. Conclusion: To conclude, the prepared polyherbal tablet and its quality control analysis revealed satisfactory pharmaceutical properties that fulfill within the limits of pharmacopeial standards. The RP-HPLC method for simultaneous estimation of quercetin, ellagic acid and kaempferol were simple, precise, accurate and consistent for the quantitative analysis and quality control examination of herbal formulations.

2019 ◽  
Vol 15 (6) ◽  
pp. 624-631
Author(s):  
Asmaa Ahmed El-Zaher ◽  
Marianne Alphonse Mahrouse ◽  
Ahmed Mohammed Al-Ghani

Background: Etamsylate (ETS), a haemostatic drug, is formulated with mefenamic acid (MFA) for pain relief. Objective: The aim of this work was to develop chromatographic methods for the estimation of ETS and MFA in the presence of their main impurities. These methods could be used in the routine analysis in quality control laboratories. Methods: The first method was RP-HPLC method, the separation was carried out on an Inertsil® ODS- 3V C18 column using a mobile phase composed of acetonitrile: potassium dihydrogen phosphate buffer adjusted to pH 7 with 0.1 N NaOH (55: 45, v/v) at a flow rate of 1 ml/ min. The detection was carried out at 220 nm. The second method was a TLC-densitometric method where the studied components were separated using a developing system composed of dichloromethane: ethyl acetate: methanol: triethylamine (6: 2: 2: 0.5, v/v/v/v) on TLC silica gel 60 F254 plates, followed by densitometric scanning at 300 nm. Results: In RP-HPLC method, the peaks were sharp and well separated, good retention times were obtained. Linearity was obtained over the concentration range 20-90 µg/ml, for both ETS and MFA. In the TLC-densitometric method, well separation of drug spots and linear relationship were achieved over the concentration range of 0.4-2.8 µg/spot, for both ETS and MFA. Method validation was conducted according to ICH guidelines. Conclusion: The developed methods were applied for the determination of the cited drugs in laboratory prepared mixtures and in tablets containing the two drugs. The methods are simple and precise and can be used for routine analysis of the drugs in combined dosage forms in quality control laboratories.


2019 ◽  
Vol 15 (5) ◽  
pp. 429-438
Author(s):  
Marianne Alphonse Mahrouse ◽  
Asmaa Ahmed El-Zaher ◽  
Ahmed Mohammed Al-Ghani

Background:Cinnarizine, an antihistaminic drug, is commonly formulated in combination with domperidone and with paracetamol for treatment and prevention of motion sickness and migraine.Objective:The aim of this work was to develop new, simple, precise and selective chromatographic methods (RP-HPLC and TLC-densitometric methods) for the determination of these drugs. These methods can be used as analytical tools in the routine examination in quality control laboratories.Methods:The first method was RP-HPLC method, the separation was carried out on an Inertsil® ODS- 3V C18 column (250 mm × 4.6 mm, 5 µm) using a mobile phase composed of methanol: acetonitrile (45: 55, v/v) at a flow rate of 1 ml/min. The detection was carried out at 220 nm. The second method was a TLC-densitometric method where the studied components were separated using a developing system composed of toluene: ethyl acetate: methanol: triethylamine (5: 4.3: 0.7: 0.5, v/v/v/v) on TLC silica gel 60 F254 plates, followed by densitometric scanning at 270 nm.Results:In RP-HPLC method, the peaks were sharp and well separated, the retention times were 5.25, 3.48 and 2.78 min, for cinnarizine, domperidone and paracetamol, respectively. Linearity was obtained over the concentration ranges 1-22, 0.75-16.5 and 25-550 µg/ml, for cinnarizine, domperidone and paracetamol, respectively. In TLC-densitometric method, good separation of spots and linear relationships were achieved over the concentration ranges of 0.2-2, 0.15-1.5 and 5-50 µg/spot, for cinnarizine, domperidone and paracetamol, respectively. Method validation was conducted according to ICH guidelines in terms of linearity, accuracy, selectivity, precision and robustness.Conclusion:The developed methods were applied for the determination of the cited drugs in tablets containing binary drug mixtures. The methods are simple and precise and can be used for routine analysis of the labelled drugs in combined dosage forms in quality control laboratories.


INDIAN DRUGS ◽  
2014 ◽  
Vol 51 (07) ◽  
pp. 39-45
Author(s):  
S.V Nagpure ◽  
◽  
S.V Deshmane ◽  
K.R. Biyani

A simple, rapid, accurate and precise RP-HPLC method was developed and validated for the determination of fenpiverinium bromide and pitofenone HCl. Separation of the drug was achieved on a reverse phase Thermo Kromasil C18 Column. The method showed a linear response for concentration in the range of 1.2-2.8μg/ml for FVB 6-14 μg/ml for PFH using diammonium hydrogen orthophosphatee buffer pH 7.2: acetonitrile as the mobile phase in the ratio of 55:45, v/v with detection at 220 nm with a flow rate of 1 ml/min and retention time was 3.77min and 7.45 min for FVB and PFH respectively. The method was statistically validated for linearity, accuracy, precision and selectivity.The limit of detection and limit of quantitation was 0.0654 µg/ml and 0.1982 µg/ml for FVB and 0.0927 µg/ml and 0.281 µg/ml for PFH, respectively. In quantitative and recovery studies, % RSD was found less than 2. Due to simplicity, rapidity and accuracy of the method, we believe that the method will be useful for routine quality control analysis of fenpiverinium bromide and pitofenone HCl in pharmaceutical formulations.


INDIAN DRUGS ◽  
2017 ◽  
Vol 54 (10) ◽  
pp. 68-70
Author(s):  
K. Sankar ◽  
◽  
A. P. Jadhav

Curcumin and embelin, which are the active constituents of Haridra and Vidanga, respectively, were used as marker compounds for developing a simple, accurate, precise and robust RP-HPLC method for simultaneous estimation from Talekt capsule. It is a polyherbal formulation used for enhancing the immune response to dermal infections and also for treating skin disorders. The mobile phase of methanol: 1% ortho phosphoric acid in water in the ratio of 90:10 V/V was used for separation. Retention time of curcumin and embelin were found to be 2.77 ± 0.2 minutes and 7.77 ± 0.2 minutes, respectively. The developed method was validated as per ICH Q2 (R1) guidelines.


2016 ◽  
Vol 9 (5) ◽  
pp. 513
Author(s):  
Vitthal S. Hiwale ◽  
Sagar M. Bhangale ◽  
Sachin S. Rane ◽  
Milind E. Chaudhari ◽  
Rajesh Y. Chaudhari ◽  
...  

2018 ◽  
Vol 10 (4) ◽  
pp. 111 ◽  
Author(s):  
Vandana Jain ◽  
Sultana Shaikh

Objective: To develop a novel, accurate, precise and linear reverse phase high performance liquid chromatographic (RP-HPLC) method for simultaneous qualitative and quantitative estimation of ellagic acid and quercetin in an ayurvedic formulation and validate as per international conference on harmonization (ICH) guidelines.Methods: In the present work, good chromatographic separation was achieved isocratically using a shim-pack HPLC C18 column (4.6 x 250 mm, 5μm) and a mobile phase consisting of 0.02 M potassium dihydrogen orthophosphate buffer (pH adjusted to 3.5 with orthophosphoric acid) and acetonitrile in the ratio 60:40, at flow rate of 1.2 ml/min and column temperature maintained at 35 °C. The effluents obtained were monitored at 255 nm with UV-visible detector.Results: The retention time of ellagic acid and quercetin were found to be 1.65 min and 2.94 min respectively. Linearity of ellagic acid and quercetin were tested in the range of 6-14 ppm and 3-11 ppm respectively. The correlation coefficient for ellagic acid and quercetin were 0.997 and 0.993 respectively. The high recovery values (98 %-102 %) indicate a satisfactory accuracy. The low percent relative standard deviation (% RSD) values in the precision study reveals that the method is precise.Conclusion: The developed method is novel, simple, precise, rapid, accurate and reproducible for simultaneous quantitative estimation of ellagic acid and quercetin in an ayurvedic formulation. Hence the developed method can be used for quantitative analysis and quality control of extracts and commercial samples of other plant species and formulation containing these two markers.


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