Estimation Of Glucose And Galactose Content In A Natural Polysaccharide Isolated From Tubers Of Colocasia Esculenta Using A Validated Rp-Hplc Method

2021 ◽  
Vol 14 ◽  
Author(s):  
Harshal Ashok Pawar ◽  
Pritam Dinesh Choudhary ◽  
Amit Jagannath Gavasane

Background: Now a days, the natural polysaccharides are preferred over synthetic polymers because they are biocompatible, cheap, and easily available than the synthetic ones. The polysaccharide obtained from the tuber of the Colocasia esculenta tubers was reported to exhibit many pharmaceutical applications as an excipient. Objective: The application of any polymer in formulating various dosage form depends upon their qualitative and quantitative chemical composition. Therefore, in the current research work, the quantitative composition of the polysaccharide isolated from Colocasia esculenta was determined by validated HPLC method. Methods: RP-HPLC analysis was performed on an Agilent, Zorbax Eclipse XDB C8 column (250 mm × 4.6 mm, 5 μm) with the mobile phase consisting of citrate buffer PH 5.5: Tetrahydrofuran: Acetonitrile (87.1:11.9:1 v/v) at a flow rate of 0.6 mL/min. UV detection was performed at 307 nm. The method was validated for various parameters as per ICH guidelines. Results: The calibration curve constructed for Glucose and Galactose was found linear with correlation coefficient of 0.997 and 0.994 respectively. The system suitability parameters, such as theoretical plate, tailing factor and relative standard deviation (RSD), were well within the limits. Solution stability data indicated that the solution was stable for 24 hours at 25°C. The water-soluble polysaccharide from Colocasia esculenta was found to contain glucose and galactose in the ratio 8:1. Conclusion: The validated RP-HPLC method was found to be specific, linear, precise, and accurate and can be successfully used for simultaneous estimation of glucose and galactose content in the polysaccharides.

Author(s):  
Prabhakar V. Raut ◽  
Sudhakar L. Padwal ◽  
Madhusudhan T. Bachute ◽  
Satish A. Polshettiwar

The present study describes the dissolution method development and validation of Ramipril and Hydrochlorothiazide in tablet dosage form by HPLC Method. A simple, rapid, selective, reproducible and isocratic reversed-phase high performance liquid chromatographic (RP-HPLC) method has been developed and validated as per ICH guidelines. Analysis was performed on a Thermo, Sunniest C8 (150 mm x 4.6 mm, 5 µm) with the mobile phase consisting of mixing 500 mL of buffer solution and 500 mL of acetonitrile at a flow rate of 1.0mL/min. UV detection was performed at 210nm and the Run time for Ramipril and Hydrochlorothiazide were 10 minutes. The calibration curve was linear (correlation coefficient = 1.000) in the selected range for both analytes. The optimized dissolution conditions include the USP Type 1 (Basket) rotation rate of 100 rpm and 750 mL of 0.1 N Hydrochloric acid as dissolution medium, at 37.0 ± 0.5°C. The method was validated for precision, linearity, specificity, accuracy, limit of quantitation and ruggedness. The system suitability parameters, such as theoretical plate, tailing factor and relative standard deviation (RSD) between six standard replicates were well within the limits. The stability result shows that the drug is stable in the prescribed dissolution medium.


INDIAN DRUGS ◽  
2019 ◽  
Vol 56 (09) ◽  
pp. 43-54
Author(s):  
K Vijaya Sri ◽  
M. Madhuri ◽  
V. Anusha ◽  
V.R.K. Siresha ◽  

The present research work illustrates the development and validation of RP HPLC method for simultaneous estimation of tenofovir disproxil fumarate, emtricitabine and rilpivirine hydrochloride in bulk and formulated in a pharmaceutical dosage form as a nanosupension. Antiretroviral drug treatment is the primary line of therapy for treating HIV. The multicomponent system formulated as a nanosuspension evidenced increased hydrophilicity, potency and decreased side effects. The separation was carried out by using efficient BDS hypersil C18 HPLC column with empower software. Combination method of Precipitation—ultrasonic homogenization was used for the preparation of the nanosuspension. The mobile phase used was methanol, water, acetonitrile (80:13.4:6.6) v/v and flow rate 1mL /min. The developed method was thus validated as per ICH guidelines for various parameters whose results advocated the reliability of the method. The results for parameters viz. retention times of tenofovir disproxil fumarate, emtricitabine and rilpivirine were 3.09 min, 2.78 min and 3.68 min, linearity range was between 7.5-90, 5-60, 0.625-7.5µg/mL, respectively. Thus the new RP-HPLC method is optimum, reliable and can be used for the simultaneous estimation of tenofovir disproxil fumarate, emtricitabine and rilpivirine hydrochloride.


2018 ◽  
Vol 6 (03) ◽  
pp. 48-51
Author(s):  
D. Mamatha ◽  
G. Naveen ◽  
Devi Singh

A simple, accurate, precise and sensitive RP-HPLC assay method have been validated for the simultaneous estimation of ciprofloxacin and flucionolone in pharmaceutical formulation by RP-HPLC .ciprofloxacin and flucionolone is separated using Develosil ODS HG-5 RP C18, 5μm, 15cmx4.6mm i.d. column at a flow rate of 0.8 ml/ min. Here resolution was good, theoretical plate count and symmetry was appropriate .The LOD and LOQ were calculated using statistical methods. The % RSD values were less than 1.The validation parameters, tested in accordance with the requirements of ICH guidelines, prove the suitability of this method. The method was successfully applied for determination of drug in tablets, wherein no interference from tablet excipients was observed, indicating the specificity of the developed method.The proposed method was found to be simple, precise, accurate, rapid, economic and reproducible for the estimation of ciprofloxacin and flucionolone in pharmaceutical formulation.


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.


2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Chinmoy Roy ◽  
Jitamanyu Chakrabarty

A simple, specific, precise, and accurate RP-HPLC method has been developed and validated for simultaneous estimation of Methylparaben (MP), Ketoconazole (KT), and Mometasone Furoate (MF) topical pharmaceutical dosage formulation. The separation was achieved by Waters X Terra C18 column using mobile phase consisting of buffer (triethyl amine in water, pH adjusted to 6.5 with glacial acetic acid)-acetonitrile (40 : 60, v/v) at a flow rate of 1.5 mL/min and detection at 250 nm. The method showed linearity with correlation coefficient <0.9999 over the range of 0.12–15.2 μg/mL, 0.67–149.4 μg/mL, and 0.42–7.6 μg/mL for MP, KT, and MF, respectively. The mean recoveries were found to be in the range of 99.9–101.1% for all the components. The method was validated as per the ICH guidelines for linearity, limit of detection, limit of quantification, accuracy, precision, robustness and solution stability. Stability indicating capability of the developed method was established by analyzing forced degradation of samples in which spectral purity of MP, KT, and MF along with separation of degradation products from analytes peak was achieved. The method can be successfully applied for routine analysis of quantitative determination of MP, KT, and MF in pharmaceutical dosage form.


2018 ◽  
Vol 10 (2) ◽  
pp. 97
Author(s):  
Sultana Gani Mohd Shaikh ◽  
Vandana Jain

Objective: To develop a novel, accurate, precise and linear reverse phase high performance liquid chromatographic (RP-HPLC) method for simultaneous quantitative estimation of gabapentin and amitriptyline hydrochloride in gabantip-at tablet and validate as per international conference on harmonization (ICH) guidelines and to perform the force degradation studies using the developed method.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 mobile phase consisting of 0.05 M potassium dihydrogen orthophosphate pH 2.1 adjusted with orthophosphoric acid and acetonitrile in the ratio (55:45), at flow rate 1 ml/min and column temperature (25 °C). The effluents obtained were monitored at 221 nm with the UV-visible detector.Results: The retention time of gabapentin and amitriptyline hydrochloride was found to be 1.959 min and 4.221 min respectively. The linearity of gabapentin was found in the range of 720-1680 ppm and that for amitriptyline hydrochloride was found to be 24-56 ppm. The correlation coefficient for gabapentin and amitriptyline hydrochloride were 0.999 and 0.9963 respectively. The high recovery values (98%-101%) 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 estimation of gabapentin and amitriptyline hydrochloride tablet dosage form. Hence the proposed method may find practical applications as a quality-control tool in the simultaneous analysis of the two drugs in combined dosage forms in quality-control laboratories.


Author(s):  
Meka. Srinivasa Rao ◽  
K. Rambabu

In this paper a simple, accurate and precise RP-HPLC method for the simultaneous. Estimation of piracetam and citicoline in synthetic mixtures has been developed and validated. Separation of drugs was carried out using buffer and Acetonitryle with proportion of 60:40 %v/v as mobile phase at 5 min. run time and 265nm. The Rt value for piracetam and citicoline was found to be 3.158 and 5.196 min respectively. The developed method has been validated for linearity, accuracy and precision, LOD, LOQ, and system suitability according to ICH guidelines. The low values of LOD and LOQ illustrate that the developed method was sensitive, accurate, and precise as it can detected and quantify with very low concentration. The low % RSD values below 2 indicate that the method is precise. The above validation studies revealed the method is specific, rapid, reliable, and reproducible. The high recovery and low relative standard deviation confirm the suitability of the method for routine determination of piracetam and citicoline in combined dose products.


Author(s):  
Harsh B Patel ◽  
Paresh U Patel

A new, simple, rapid, selective, precise and accurate gradient RP-HPLC method has been developed for simultaneous estimation of Ciprofloxacin and Phenylephrine Hydrochloride in combined dosage form. The separation was achieved by using Thermic Hypersil C column (250 mm x 4.6 mm, 5 µm particle size) coupled with a guard column of same material, in mobile phase Acetonitrile: Methanol: Phosphate Buffer pH 6 (10: 65: 25, v/v/v). The flow rate was 1.0 ml/min and the separated drugs were detected using UV detector at the wavelength of 220 nm. The analysis was performed at room temperature (37 ± 2 ºC). The retention time of Ciprofloxacin and Phenylephrine Hydrochloride was noted to be 6.63 and 4.49 min, respectively, indicative of rather shorter analysis time. The method was validated as per ICH guidelines. The calibration curves were linear (r2 > 0.9980) over a concentration range from 0.5 – 4.0 μg/ml and 2.0 – 5.5 μg/ml for Ciprofloxacin and Phenylephrine Hydrochloride, respectively. The relative standard deviation (RSD) was < 2.0% and the mean recovery was 100.51 ± 0.34 and 100.81 ± 0.80 for Ciprofloxacin and Phenylephrine Hydro-chloride, respectively. The proposed method was found to be accurate, reproducible, and consistent. It was successfully applied for the analysis of these drugs in marketed formulations and could be effectively used for the routine analysis of formulations containing any one of the above drugs, or a combination, without any alteration in the chromatographic conditions.


Author(s):  
Neha Desai ◽  
Munira Momin ◽  
Upasana Singh ◽  
Tabassum Khan ◽  
Atul Sherje

Objective: The present work was undertaken with an aim to develop and validate a rapid reverse-phase high-performance liquid chromatography (RP-HPLC) method for the estimation of curcumin and cyclosporine in the capsule dosage form. Methods: The RP-HPLC method for the simultaneous estimation of curcumin and cyclosporine was developed using Agilent (Infinity 1260) HPLC system and Eclipse XDB-C18 (4.6 x 150 mm i.d., 5µ) stationary phase. The optimized mobile phase comprised of acetonitrile: water: methanol (50: 10: 40 v/v/v) pumped at a flow rate of 0.5 ml/min. Separation of drugs was achieved in an isocratic mode and elution was monitored using PDA detector at 214 nm. The method was validated as per ICH-Q2R1 guidelines. Results: Retention time of the curcumin and cyclosporine were found to be 3.073 min and 6.373 min with the correlation coefficient (R2) of 0.9993 and 0.998 respectively. The response of curcumin and cyclosporine was found linear in the concentration range of 8-48 μg/ml and 4-24 μg/ml respectively. The percent recovery values were found in the range of 97-103% indicating satisfactory accuracy of the method. The percent relative standard deviation (% RSD) values for the precision study was less than 2 which suggest that the method is precise. Conclusion: The proposed method was found accurate, precise and specific for the determination of curcumin and cyclosporine in bulk as well as in capsule dosage form. Thus, the present method can be used for routine analysis and quality control of curcumin and cyclosporine in bulk and capsule dosage form.


Author(s):  
Aarti S. Zanwar ◽  
Dhanya B. Sen ◽  
Ashim Kumar Sen ◽  
A. K. Seth

Objective: To develop and validate a simple and sensitive RP-HPLC method for the simultaneous determination of mometasone furoate (MOM) and formoterol fumarate (FOR) in pharmaceutical dosage forms. Methods: In RP-HPLC method, chromatographic separation was achieved using a mixture of a solvent system consisting of methanol–water (pH 3.5) in the ratio of 85:15 % v/v at a flow rate of 1 ml/min and detection was carried out at 225 nm. Results: The run time for the simultaneous estimation of drugs for the proposed method was 10 min as drugs eluted at 5.217 min (MOM) and 8.650 min (FOR). The linearity was found in the range of 33.33-299.97 μg/ml and 1-9 μg/ml for MOM and FOR, respectively. The values of limit of detection and limit of quantification were 3.634, 0.266 µg/ml and 11.014, 0.807 µg/ml, which indicates the sensitivity of the method for the estimation of MOM and FOR, respectively. The results of recovery studies for both the drugs were within the range i.e. 98.87-101.48 % which indicates the accuracy of the method. Relative standard deviation obtained from repeatability and reproducibility studies were less than 2% indicates the precision of the method. The proposed method was validated according to ICH guidelines. Conclusion: The proposed RP-HPLC method was found to be sensitive and precise because of the low LOD, LOQ and % RSD values (<2). The proposed work does not require acetonitrile and ion pairing reagent as compared to the reported methods. Therefore, method can be used preferably for routine analysis due to its simplicity and economic advantages.


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