scholarly journals Spectrophotometric method for simultaneous estimation of atazanavir sulfate and ritonavir in tablet dosage form

2015 ◽  
Vol 6 (1) ◽  
pp. 1 ◽  
Author(s):  
DishaA Patel ◽  
BhaviniN Patel ◽  
ChhaganbhaiN Patel
Keyword(s):  
Spectrophotometric Method ◽  
Dosage Form ◽  
Simultaneous Estimation ◽  
Atazanavir Sulfate ◽  
Tablet Dosage

DETERMINATION OF TELMISARTAN HYDROCHLORIDE AND HYDROCHLOROTHIAZIDE IN BINARY MIXTURE AND PHARMACEUTICAL TABLET DOSAGE FORM BY FIRST DERIVATIVE RATIO SPECTROPHOTOMETRIC METHOD

INDIAN DRUGS ◽  
2016 ◽  
Vol 53 (11) ◽  
pp. 57-64
Author(s):  
V Thakur ◽  
◽  
S. J. Daharwal
Keyword(s):  
Binary Mixture ◽  
Spectrophotometric Method ◽  
Dosage Form ◽  
Hplc Method ◽  
Simultaneous Estimation ◽  
First Derivative ◽  
Pharmaceutical Tablet ◽  
Study Results ◽  
Recovery Study ◽  
Tablet Dosage

New first derivative ratio spectrophotometric method was developed for simultaneous estimation of telmisartan hydrochloride (TELM) and hydrochlorothiazide (HCTZ) in combined tablet dosage form without prior separation. The amplitude in the first derivative of the corresponding ratio spectra at 263.2 nm and 278.4 nm of TELM and for HCTZ at 287.2 nm and 304.8 nm were selected for the determination. The calibration graphs were established in the range of 1-10μg/mL and 2-15 μg/mL of TELM and HCTZ, respectively. The percentage recoveries of binary mixture of TELM were found to be 97.81±1.05 (263.2nm) and 96.60±1.91 (278.4nm) and for HCTZ were found to be 97.47±1.41 (287.2), 98.16± 1.45 (304.8nm) by proposed method. This method was successfully applied for the analysis of commercial tablet formulation, with no interference from excipients as indicated by the recovery study results. The proposed method was validated, statistically analyzed, compared with reported HPLC method and can be successfully applied for the routine analysis.

SIMULTANEOUS ANALYSIS OF A THREE COMPONENT MIXTURE BY VIERODT’S SIMULTANEOUS EQUATION METHOD

INDIAN DRUGS ◽  
2016 ◽  
Vol 53 (10) ◽  
pp. 40-42
Author(s):  
A Palekar ◽  
◽  
S. Gaude ◽  
S. P. N. Pai
Keyword(s):  
Spectrophotometric Method ◽  
Dosage Form ◽  
Drug Product ◽  
Simultaneous Equation ◽  
Simultaneous Equations ◽  
Simultaneous Estimation ◽  
Component Mixture ◽  
Percent Recovery ◽  
And Performance ◽  
Tablet Dosage

A simple, rapid, sensitive and economical UV spectrophotometric method was developed and validated for the simultaneous estimation of aspirin, caffeine, and orphenadrine citrate by Vierodt’s method in combined tablet dosage form and using mixture of 0.1 N HCl: ethanol (1:1) as solvent. The method employs designing and solving of simultaneous equations using 3 wavelengths, namely 226 nm, 272 nm, and 210 nm. Beer’s law was obeyed in the concentration range of 3-18 μg/mL for aspirin and 0.5-12 μg/mL for both caffeine and orphenadrine citrate with r2 value of 0.993, 0.991, and 0.991 respectively. Accuracy was determined by recovery studies and showed percent recovery ranging from 99.78-100% for aspirin, 96.10-100.92% for caffeine and 100.53-102.5% for orphenadrine citrate. The developed method can be used in QC laboratory for routine analysis to ensure the identity, purity, and performance of the drug product.

SIMULTANEOUS ESTIMATION OF AMLODIPINE BESYLATE AND INDAPAMIDE BY DUAL WAVELENGTH SPECTROPHOTOMETRIC METHOD FOR COMBINED PHARMACEUTICAL DOSAGE FORM

INDIAN DRUGS ◽  
2014 ◽  
Vol 51 (04) ◽  
pp. 50-54
Author(s):  
M. P Patel ◽  
◽  
M. R Patel ◽  
R Hasumati ◽  
M. N Noolvi ◽  
...  
Keyword(s):  
Spectrophotometric Method ◽  
Dosage Form ◽  
Dual Wavelength ◽  
Simultaneous Estimation ◽  
Uv Spectrophotometry ◽  
Amlodipine Besylate ◽  
Pharmaceutical Dosage Form ◽  
First Order ◽  
Absorbance Difference ◽  
Tablet Dosage

A simple, accurate, precise, rapid, economical UV spectrophotometry method, dual wavelength spectrophotometry, has been developed and validated for estimation of Indapamide (IND) and Amlodipine besylate (AML) in combined tablet dosage form and can be used in routine analysis. In this method, the absorbance at 360 nm and 256 nm of AML were same and no interference of IND at 360 nm. was observed. So, absorbance difference at 256-360 is used for estimation of IND and absorbance at 360 nm used for AML. The method was found to be linear in the concentration range of 3-18 μg/mL for IND (r2>0.99962) and 10-60 μg/mL for AML (r2>0.99969). Mean assay was found to be 99.32% and 101.34% for IND and AML respectively. In first order derivative spectrophotometry, the absorbance at 237.4 nm (ZCP of AML) and 241 nm (ZCP of IND) were used for estimation of IND and AML respectively. The method was found to be linear in the concentration range of 1.5-9 μg/mL for IND(r2=0.99983) and 5-30 μg/mL for AML(r2=0.99966). Mean assay was found to be 99.72% and 100.28% for IND and AML respectively.

scholarly journals Simultaneous Estimation of Ambroxol Hydrochloride and Cetirizine Hydrochloride in Pharmaceutical Tablet Dosage Form by Simultaneous Equation Spectrophotometric Method: A Quality Control Tool for Dissolution Studies

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Deepak Sharma ◽  
Mankaran Singh ◽  
Dinesh Kumar ◽  
Gurmeet Singh
Keyword(s):  
Spectrophotometric Method ◽  
Dosage Form ◽  
Simultaneous Equation ◽  
Drug Formulation ◽  
Simultaneous Estimation ◽  
Validation Parameters ◽  
Quality Control Tool ◽  
Cetirizine Hydrochloride ◽  
Ambroxol Hydrochloride ◽  
Tablet Dosage

Ambroxol Hydrochloride and Cetirizine Hydrochloride are used for the treatment of bronchitis, cough, and allergy. A simple, economical, accurate, and precise method for simultaneous estimation of Ambroxol Hydrochloride and Cetirizine Hydrochloride in tablet dosage form has been developed. Simultaneous equation method based on measurement of absorbance at two wavelengths, that is, 244 nm and 230 nm, λmax of Ambroxol Hydrochloride and Cetirizine Hydrochloride in pH 6.8 phosphate buffer. Both of these drugs obeyed Beer-Lambert’s law in the concentration range of 2–18 µg/mL for Ambroxol Hydrochloride and 2–20 µg/mL for Cetirizine Hydrochloride. The high values of correlation coefficient (R) indicated good linearity of calibration curve for both the drugs. The accuracy and precision of method were determined and the method was validated statistically. Result of percentage recovery study confirms the accuracy of proposed method. As per the ICH guidelines, the method validation parameters checked were linearity, accuracy, precision, and assay of drug formulation. Based on the results obtained, it can be concluded that the proposed simultaneous equation spectrophotometric method for simultaneous estimation of Ambroxol Hydrochloride and Cetirizine Hydrochloride is rapid, economical, accurate, precise, and reproducible. Hence, the proposed method can be employed for quantitative estimation of Ambroxol Hydrochloride and Cetirizine Hydrochloride from their tablet dosage form.

scholarly journals Development and Validation of UV Spectrophotometric Method for Simultaneous Estimation of Hesperidin and Diosmin in the Pharmaceutical Dosage Form

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Doddi Srilatha ◽  
Mahesh Nasare ◽  
Borra Nagasandhya ◽  
Valluri Prasad ◽  
Prakash Diwan
Keyword(s):  
Spectrophotometric Method ◽  
Dosage Form ◽  
Cost Effective ◽  
Simultaneous Estimation ◽  
Good Reproducibility ◽  
Pharmaceutical Dosage Form ◽  
Quality Control Tool ◽  
Development And Validation ◽  
Tablet Dosage ◽  
Control Tool

A simple, rapid, precise and highly selective spectrophotometric method was developed for simultaneous estimation of Hesperidin and Diosmin in tablet dosage form. This method, involves the measurement of absorbances of Hesperidin and Diosmin at the wavelengths of 285 nm (λmax of Hesperidin) and 268 nm (λmax, of Diosmin). The UV spectra’s of Hesperidin and Diosmin prepared in different solvents water, methanol, and acetonitrile and 0.2 N sodium hydroxide were recorded. These two drugs showed good absorbances when dissolved in 0.2 N NaOH. Hence 0.2 N NaOH was selected as the solvent for the method. Two wavelengths 285 and 268 nm were selected which are λmax of two drugs Hesperidin and Diosmin, respectively. Different concentrations of Hesperidin (5–50 μg/mL) and Diosmin (2–24 μg/mL) and a mixture of Hesperidin and Diosmin were prepared, scanned and absorbances were noted at the two wavelengths were fixed for the study. The method showed good reproducibility and recovery with % RSD less than 2. The LOD of Hesperidin and Diosmin was found to be 0.139 μg/mL and 0.048 μg/ml and LOQ of Hesperidin and Diosmin was found to be 0.42 μg/mL and 0.147 μg/mL, respectively. Thus the proposed method was found to be rapid, specific, precise, accurate and cost effective quality control tool for the routine analysis of Hesperidin and Diosmin in bulk and combined dosage form.

scholarly journals Simultaneous Spectrophotometric Method for Determination of Emtricitabine and Tenofovir Disoproxil Fumarate in Three-Component Tablet Formulation Containing Rilpivirine Hydrochloride

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
S. Venkatesan ◽  
N. Kannappan
Keyword(s):  
Spectrophotometric Method ◽  
Analytical Method ◽  
Tenofovir Disoproxil Fumarate ◽  
Dosage Form ◽  
Simultaneous Equation ◽  
Equation Method ◽  
Simultaneous Estimation ◽  
Ich Guidelines ◽  
Tablet Dosage

Developing a single analytical method for estimation of individual drug from a multidrug composition is a very challenging task. A complexation, derivatization, extraction, evaporation, and sensitive-free direct UV spectrophotometric method is developed and validated for the simultaneous estimation of some antiviral drugs such as emtricitabine (EMT), tenofovir disoproxil fumarate (TDF), and rilpivirine HCl (RPV) in tablet dosage form by Vierordt’s method. The solutions of standard and sample were prepared in methanol. The λmax⁡ for emtricitabine, tenofovir disoproxil fumarate, and rilpivirine hydrochloride were 240.8 nm, 257.6 nm, and 305.6 nm, respectively. Calibration curves are linear in the concentration ranges 4–12 μg/ml for EMT, 6–18 μg/ml for TDF, and 0.5–1.5 μg/ml for RPV, respectively. Results of analysis of simultaneous equation method were analyzed and validated for various parameters according to ICH guidelines.

scholarly journals Spectrophotometric Method Development and Validation for Simultaneous Estimation of Nebivolol hydrochloride and Valsartan in Bulk and Combined Pharmaceutical Dosage Form in Release Media

2019 ◽  
Vol 11 (06) ◽  
Author(s):  
Chandani Makvana ◽  
Satyajit Sahoo
Keyword(s):  
Spectrophotometric Method ◽  
Phosphate Buffer ◽  
Dosage Form ◽  
Method Development ◽  
Limit Of Detection ◽  
Simultaneous Estimation ◽  
Pharmaceutical Dosage Form ◽  
Limit Of Quantitation ◽  
Nebivolol Hydrochloride ◽  
Tablet Dosage

A simple, rapid, precise, accurate and sensitive spectrophotometric method has been developed for the simultaneous estimation and validation of Nebivolol Hydrochloride (NEB) and Valsartan (VAL) in pure and combined tablet dosage forms. Pure drug samples of NEB and VAL were dissolved in 67 mM Phosphate buffer pH 6.8 with 0.5% sodium dodecyl sulphate (SDS) and found to have absorbance maxima at 280 nm for NEB and 250 nm for VAL, respectively. The linearity lies between 10-70μg/ml for NEB and 10-60μg/ml for VAL in this method. The correlation coefficient (r2) was found to be 0.9965 for NEB and 0.9960 for VAL. The % recoveries obtained were 95.65%-109.85% for NEB and 97.42%-101.43% for VAL. The % RSD found 0.271%-1.490% for intraday and 0.334%-1.917% for interday for NEB and 0.188%-0.944% for intraday and 0.392%-1.197% for interday for VAL. The limit of detection and limit of quantitation for NEB were found to be 4.608μg/ml and 13.965μg/ml respectively and the limit of detection and limit of quantitation for VAL were found to be 4.348μg/ml and 13.178μg/ml respectively. Simultaneous calibration of both drugs in 67 mM Phosphate buffer pH 6.8 with 0.5% SDS shows that λmax of one drug does not interfere on the λmax of other drug. Recovery study was performed to confirm the accuracy of the method. The results of analysis have been validated statistically by recovery studies as per International Conference on Harmonization guidelines. The method showed good reproducibility and recovery with % RSD Lessthan 2. Hence, this proposed method was found to be rapid, specific, precise and accurate and can be successfully applied for the routine analysis of NEB and VAL in pure and combined tablet dosage form.

Q-Absorbance Ratio Spectrophotometric Method for the Simultaneous Estimation of Metformin Hydrochloride and Voglibose in Tablet Dosage form

2021 ◽  
pp. 3179-3183
Author(s):  
Kedar Tejashree R. ◽  
A.R. Dashetwar ◽  
D.P. Kardile ◽  
A.P. Jadhav ◽  
V.C. Bhagat ◽  
...  
Keyword(s):  
Spectrophotometric Method ◽  
Dosage Form ◽  
Ratio Method ◽  
Metformin Hydrochloride ◽  
Simultaneous Estimation ◽  
Absorbance Ratio ◽  
Ich Guidelines ◽  
Highly Sensitive ◽  
Stock Solutions ◽  
Tablet Dosage

A new, simple, accurate, precise and reproducible UV-Spectrophotometric method is being developed for the simultaneous estimation of Metformin Hydrochloride and Voglibose in tablet dosage form. The stock solutions were prepared in methanol. The λmax for Metformin Hydrochloride and Voglibose were found to be248 nm and 287nm respectively. The Metformin Hydrochloride and Voglibose obeyed Beer’s law in concentration range of 8-16µg/ml and 4-20µg/ml respectively. Results of analysis of absorbance ratio method were analysed and validated for various parameters according to ICH guidelines for accuracy, precision, linearity, robustness, LOD and LOQ. The proposed method is highly sensitive, precise and accurate, therefore can be used for intended purpose.

Spectrophotometric Method For Simultaneous Estimation of Montelukast Sodium and Ebastine in Bulk and Their Combined Tablet Dosage Form

2014 ◽  
Vol 48 (2) ◽  
pp. 87-91
Author(s):  
Nikita N Patel ◽  
Nikesh S Rana ◽  
Rajesh K S ◽  
Parag R Patel ◽  
Ujjaval Limbachiya ◽  
...  
Keyword(s):  
Spectrophotometric Method ◽  
Dosage Form ◽  
Simultaneous Estimation ◽  
Montelukast Sodium ◽  
Tablet Dosage
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