scholarly journals Selective SGLT2 Inhibitor’s Estimation and Validation from Galenical Form by RP-HPLC Method

Author(s):  
Swapnali Suresh Mankar ◽  
Muhammad Younas ◽  
Vaishavi Kalode ◽  
Pranita Jirvankar ◽  
Prasanna Phutane ◽  
...  

Aim: The recent analysis is required to do novel and simple, sensitive, precise, efficient, instant and reproducible reverse phase high performance liquid chromatography (RP-HPLC) method for estimation of antidiabetic drug in the unit dosage form. Validation of this method is also planned to make it suitable for the actual use. Study Design: Department of Pharmaceutical Chemistry, Datta Meghe Institute of Medical Sciences deemed to be university, Wardha in collaboration with Balkh university, Mazar-e-sharif, Afghanistan between August 2021 and December 2021. Methodology: In that article develop the method and validate it by estimation of antidiabetic drugs in solid dosage form by RP-HPLC, by using System suitability test, Repeatability, Precision studies (Intra-day and Interday/Intermediate), Linearity/Calibration studies, Robustness, Force degradation, Specificity, Drug recovery/accuracy studies. Results: as per ICH guidelines, the performance if system suitability in remogliflozin were achieved all guidelines; in that, tailing factor (T),separation factors(α),theoretical plates(N),capacity  factor (k’), resolution (R) and RSD (%). The validated stress degradation studies under thermal, oxidative, alkali and acid, in few degradation products for remogliflozin (REM). Conclusion: From the results we conclude that, this novel technique which validated for exploration by reverse phase high performance liquid chromatography (RP-HPLC) should be used for routine quality control of remogliflozin (REM) prediction from developed formulation.

Author(s):  
BHOOMI D PATEL ◽  
MEHTA BHAVYA ◽  
ANKIT B CHAUDHARY

Objective: The objective of the study was to develop and validate reverse-phase high-performance liquid chromatography (RP-HPLC) method and apply method to tablet dosage form. Methods: A simple, rapid, economical, precise, and accurate RP-HPLC method for simultaneous estimation of lamivudine and zidovudine in their combined dosage form has been developed. Results: A RP-HPLC method was developed for the simultaneous estimation of lamivudine and zidovudine. In their combined dosage form has been developed. The separation was achieved by LC-C18 column (150 mm ×4.6 mm, 5 μm) and water: methanol (65:35v/v) as mobile phase, at a flow rate of 0.8 ml/min. Detection was carried out at 272 nm. Retention time of lamivudine and zidovudine was found to be 3.007 min and 4.647, respectively. The method has been validated for linearity, accuracy, and precision. The assay method was found to be linear from 50% to 150% for lamivudine and zidovudine. Conclusion: Developed method was found to be accurate, precise, and rapid for simultaneous estimation of lamivudine and zidovudine in their combined dosage form.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Katso Binang ◽  
David T. Takuwa

Abstract The aim of the study was to develop a rapid, efficient, and cheap chromatographic method for determining four selected antihypertensive active flavonoid compounds in medicinal plants in Botswana. The determination of rutin, quercetin, and kaempferol in selected medicinal plants was conducted in less than 6 min using the developed reverse phase-high performance liquid chromatography (RP-HPLC) method with a 2.7 µm Ascentis C18 express column (150 × 4.60 mm i.d) at 340, 360, and 368 nm detection wavelengths and mobile phase of methanol and 0.068% of formic acid solution in isocratic elution. Validation results showed good selectivity, linearity (r 2 > 0.99), high percentage recoveries (90.2–104.7%), and precision (% RSD < 2) for n = 3, confirming suitability of the method for determination of the investigated flavonoids in Zingiber officinale (ginger). Application of the developed RP-HPLC method was performed in selected medicinal plants (Lippia javanica ) (mosukujane), Myrothanmus flabellious (galalatshwene), and Elephantorrhiza elephantina (mositsana) used to manage hypertension by herbalists in Botswana. M. flabellious a very commonly used plant for managing hypertension was found to contain highest amounts of rutin and myricetin, whereas nothing was detected for E. elephantina.


2021 ◽  
Vol 09 ◽  
Author(s):  
Priyanka Narula ◽  
Komal Saini ◽  
Megha Saini ◽  
Dinesh Singla ◽  
Anurag Singh Chauhan ◽  
...  

Background: Envisaging the poor solubility (56ng/ml) and permeability of tetrahydrocurcumin (THCC), it was formulated into lipidic nanostructures to enhance its bioavailability upon topical application to promote the healing process for skin inflammatory disorders. Lack of literature on suitable method for determining THCC per se and nanoformulations prompted us to develop a RP-HPLC method to detect the drug in its nanostructures and in pig ear skin post dermatokinetics. Objective: The present investigation aimed to develop a simple, precise and RP-HPLC method for the quantitative estimation of THCC in prepared lipidic nanostructures, its ointment and in skin homogenate obtained post dermatokinetic study. Method: THCC encapsulated nanostructures and ointment were formulated using modified emulsification method and embedded into an ointment base to enhance its spreadability and improve patient compliance. A fast and sensitive reverse phase high performance liquid chromatography method was developed using a Hypersil BDS reverse phase C18 column (4.6 mm × 250 mm, 5 μm) with mobile phase comprising tetrahydrofuran (THF) and 1 mgmL-1 citric acid (4:6), at a flow rate of 1.0 mLmin−1 with a run time of 20 min. Result: THCC nanostructures were successfully prepared using spontaneous microemulsification method. THCC was detected at 282 nm and revealed two peaks which were attributed to the keto-enol tautomerism in the molecule with retention times of 6.23 min and 11.06 min respectively. The assay of THCC in nanostructures and ointment was found to be 98.30% and 99.98% with entrapment efficiency 77.00±2.74 %. The dermatokinetic studies revealed sufficient release of THCC from its ointment up till 24 hr with a concentration of 1382 μgcm-2, for causing a therapeutic effect. Conclusion: The method was found to be reproducible and robust as shown by low coefficient of variation and a constant analyte/IS ratio. It was successfully employed for the estimation of THCC assay in nanostructures and it’s ointment and dermatokinetic analysis in skin.


Author(s):  
SRUTHI A ◽  
UTTAM PRASAD PANIGRAHY

Objective: A rapid, sensitive and specific reverse phase High performance liquid Chromatography (RP-HPLC) method was developed for the estimation of Fimasartan in bulk and pharmaceutical dosage form. Method: The RP-HPLC analysis was performed isocratically on a Primacel C18 column (150 mm × 4.6 mm internal diameter, 5 μm particle size) using mobile phase of composition Acetonitrile and 0.1% orthophosphoric Acid in 80:20, v/v proportions with a flow rate of 0.8 ml/min. Results: The analyte was monitered with UV-detector at 265 nm. In the developed method Fimasartan elutes at a typical retention time of 2.4 min. The proposed method is having linearity in the concentration ranging from 5-30 μg/ml of Fimasartan. Conclusion: : The method was statistically validated and had been applied to analysis of the drug in bulk and pharmaceutical dosage form.


Author(s):  
Geetha Susmita A ◽  
Rajitha G ◽  
Ramya Yadav Y ◽  
Uma P

Objective: The objective of this study was to develop and validate a stability-indicating reverse-phase high-performance liquid chromatography (RP-HPLC) method for the simultaneous estimation of the metformin and empagliflozin in tablet dosage forms.Methods: The chromatographic conditions were optimized and it was run through Std. BDS (250 mm × 4.6 mm, 5 m) column with mobile phase consisting of 0.1% orthophosphoric acid buffer: acetonitrile in the ratio of 50:50. The flow rate was 1 ml/min and optimized wavelength was 210 nm. Temperature was maintained at 30°C.Results: The retention times of metformin and empagliflozin were found to be 2.588 min and 3.679 min and percentage relative standard deviation (RSD) of the metformin and empagliflozin was found to be 0.59 and 1.2, respectively. Percentage recovery was in the range of 100.01–100.65% for metformin and empagliflozin, respectively.Conclusion: A sensitive, rapid, and specific method has been developed for the simultaneous estimation of metformin and empagliflozin using RP-HPLC in tablet dosage form.


2021 ◽  
Vol 19 (1) ◽  
pp. 19-28
Author(s):  
SANTOSH GANDHI ◽  
MANGESH BHALEKAR ◽  
RAVINA MUTHA

The aim of the present study was to develop a simple isocratic reverse phase-high performance liquid chromatography (RP-HPLC) method and validate for the determination of fenofibrate in tablet dosage forms. RP-HPLC method was developed using Hi Q Sil C18 (250 cm × 4.6 mm, 5 μm) and mobile phase comprising 1 mM ammonium acetate buffer: Acetonitrile (10:90 v/v) at a flow rate of 1.0 mL/min. The detection was carried out at 290 nm. The retention time was found to be 6.15 ± 0.03 min. Validation of the method was performed for precision, accuracy, linearity, robustness, specificity and sensitivity to conform to the International Conference on Harmonization (ICH) guidelines. The data of linear regression analysis indicated a good linear response in the concentration range of 5 μg/mL–30 μg/mL with correlation co-efficient (R2) of 0.997. The developed method was found to be simple, sensitive, accurate and repeatable for assay of tablets of fenofibrate prepared using crystallo-co-agglomerates of the drug.


Author(s):  
Geetha Susmita A ◽  
Rajitha G ◽  
Ramya Yadav Y ◽  
Uma P

Objective: The objective of this study was to develop and validate a stability-indicating reverse-phase high-performance liquid chromatography (RP-HPLC) method for the simultaneous estimation of the metformin and empagliflozin in tablet dosage forms.Methods: The chromatographic conditions were optimized and it was run through Std. BDS (250 mm × 4.6 mm, 5 m) column with mobile phase consisting of 0.1% orthophosphoric acid buffer: acetonitrile in the ratio of 50:50. The flow rate was 1 ml/min and optimized wavelength was 210 nm. Temperature was maintained at 30°C.Results: The retention times of metformin and empagliflozin were found to be 2.588 min and 3.679 min and percentage relative standard deviation (RSD) of the metformin and empagliflozin was found to be 0.59 and 1.2, respectively. Percentage recovery was in the range of 100.01–100.65% for metformin and empagliflozin, respectively.Conclusion: A sensitive, rapid, and specific method has been developed for the simultaneous estimation of metformin and empagliflozin using RP-HPLC in tablet dosage form.


Author(s):  
Juluri Krishna Dutta Tejaswi ◽  
Govinda Rajan R

Objective: A stability indicating reverse-phase high-performance liquid chromatography (RP-HPLC) method was developed and validated for the estimation of emtricitabine (EMT), rilpivirine (RIL), and tenofovir alafenamide (TAF) in combined dosage forms and its API.Methods: Chromatographic separation was achieved on Waters ACQUITY RP-HPLC with PDA detector having Zodiac C18 Column (250×4.6×5μ) using mobile phase mixture of phosphate buffer: acetonitrile in the ratio of 40:60 v/v at 262 nm.Results: The assay was performed with tablets, and the % assay was found to be 100.104 for EMT, 99.74 for RIL, and 102.41 for TAF which shows that the method is useful for routine analysis. The linearity was found to be linear with a correlation coefficient of 0.999, which shows that the method is capable of producing good sensitivity. The retention time (RT) of EMT, RIL, and TAF using optimum conditions was found to be 2.517, 3.273, and 6.697 min. Forced degradation studies (FDS) were performed on sample using acid, base, thermal, photolytic, and peroxide degradation.Conclusion: Due to its simplicity, rapidness, high precision, and low RT value, this method was successfully applied to the estimation of EMT, RIL, and TAF combined dosage form. The drugs were found to be stable at FDS, and the net degradation was found to be within the limits.


2020 ◽  
Vol 11 (02) ◽  
pp. 296-302
Author(s):  
Aseem Kumar ◽  
Anil Kumar Sharma ◽  
Rohit Dutt

The present work demonstrates a simple, rapid, precise, specific, and sensitive reverse-phase high-performance liquid chromatography (RP-HPLC) method for analyzing glimepiride in pure and tablet forms. The present method was developed using a C18 column 150 × 4.6 mm, with 5 μm, and packing L1 maintained at a temperature of 30°C. The mobile phase was prepared by dissolving 0.5 gram of monobasic sodium phosphate in 500 mL of distilled water, pH of the solution adjusted to 2.1 to 2.7 with 10% phosphoric acid, and added 500 mL of acetonitrile. The mobile phase was pumped in the highperformance liquid chromatography (HPLC) system at a flow rate of 1 mL/min, and separation was carried out at 228 nm, using an ultraviolet (UV) detector. The chromatographic separation was achieved with peak retention time (RT) at about 9.30 minutes, and the method was found to be linear over a concentration range of 40 to 140 μg/mL. The specificity of the method represented no interference of the excipients during the analysis, and stability testing after 24 hours also showed that the method is suitable and specific. The accuracy was between 99.93 to 99.96%, with limit of detection (LOD) and limit of quantitation (LOQ) being 0.354 μg/mL, 1.18 μg/mL, respectively. Satisfactory results were found for precision and robustness parameters during the development and validation stage for the analytical method. The proposed method was also adopted for the analysis of glimepiride tablets to improve the overall quality control. Using this method, symmetric peak shape was obtained with reasonable retention time. The retention time of glimepiride for six repetitions is 9.3 ± 0.1 minutes; the run time is 21 minutes. The proposed RP-HPLC method is a modification of the United States Pharmacopeia (USP) method, and it was found to be valid for glimepiride within concentration ranges 40 to 140 μg/mL, using C18 analytical columns, and isocratic elution with UV detection, and at 1 mL/min of flow rate.


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