Simultaneous variation of temperature and gradient steepness for reversed-phase high-performance liquid chromatography method development

1998 ◽  
Vol 803 (1-2) ◽  
pp. 33-50 ◽  
Author(s):  
J.W Dolan ◽  
L.R Snyder ◽  
D.L Saunders ◽  
L Van Heukelem
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Method Development ◽  
Reversed Phase ◽  
Chromatography Method ◽  
Liquid Chromatography Method ◽  
Simultaneous Variation

scholarly journals ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR THE SIMULTANEOUS ESTIMATION OF EMTRICITABINE AND TENOFOVIR BY REVERSED-PHASE HIGH PERFORMANCE LIQUID CHROMATOGRAPHY IN BULK AND TABLET DOSAGE FORMS

2017 ◽  
Vol 10 (11) ◽  
pp. 59
Author(s):  
Sufiyan Ahmad ◽  
Mohammed Rageeb Mohammed Usman
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
High Performance ◽  
Method Development ◽  
Reversed Phase ◽  
Simultaneous Estimation ◽  
Control Analysis ◽  
Chromatography Method ◽  
Liquid Chromatography Method ◽  
Tablet Dosage

  Objective: A simple rapid, accurate, precise, and reproducible validated reversed-phase high performance liquid chromatography method was developed for the determination of emtricitabine (EMB) and tenofovir (TEN) in bulk and tablet dosage forms.Methods: The quantification was carried out using symmetry Premsil C18 (250 mm×4.6 mm, 5 μm) Younglin (S.K.) gradient way using mobile phase comprising of methanol:water (70:30 v/v) pH 3 and a detection wavelength of 273 nm, and injection volume of 20 μL, with a flow rate of 1 ml/minutes.Results: In the developed method, the retention time of EMB and TEN were found to be 3.1667 minutes and 7.5000 minutes. The developed method was validated according to the International Conference on Harmonization (ICH) guidelines.Conclusion: The linearity, precision, range, robustness was within the limits as specified by the ICH guidelines. Hence, the method was found to be simple, accurate, precise, economic, and reproducible. Hence, it is worthwhile that the proposed methods can be successfully utilized for the routine quality control analysis EMB and TEN in bulk drug as well as in formulations.

Reversed-phase high performance liquid chromatography method for the determination of paraquat in whole blood

2014 ◽  
Vol 6 (16) ◽  
pp. 6560-6564 ◽  
Author(s):  
Wuxiang Zhang ◽  
Yicong Su ◽  
Jiangu Shi ◽  
Maosheng Zhang ◽  
Bide Wu ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Whole Blood ◽  
High Performance ◽  
Reversed Phase ◽  
Chromatography Method ◽  
Liquid Chromatography Method

In this paper, a high performance liquid chromatography technique is established for quantification of paraquat in blood.

Validation of a Reversed-Phase High-Performance Liquid Chromatography Method With Fluorescence Detection for the Bioequivalence Study of Norfloxacin in Plasma Samples

2008 ◽  
Vol 30 (3) ◽  
pp. 341-346 ◽  
Author(s):  
Maria Bernadete Sousa Maia ◽  
Ismael Leite Martins ◽  
Demétrius Fernandes do Nascimento ◽  
Adriano Nunes Cunha ◽  
Francisco Evanir Gonçalves de Lima ◽  
...  
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Fluorescence Detection ◽  
High Performance ◽  
Bioequivalence Study ◽  
Reversed Phase ◽  
Plasma Samples ◽  
Chromatography Method ◽  
Liquid Chromatography Method

DEVELOPMENT AND VALIDATION OF THE REVERSED-PHASE HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY METHOD FOR THE ESTIMATION OF GUAIFENESIN IN METHOCARBAMOL API AND ITS PHARMACEUTICAL DOSAGE FORMS

2018 ◽  
Vol 11 (5) ◽  
pp. 401
Author(s):  
Mannem Durga Babu ◽  
Kesana Surendrababu
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Mobile Phase ◽  
High Performance ◽  
Reversed Phase ◽  
Dosage Forms ◽  
Solution Stability ◽  
Chromatography Method ◽  
Pharmaceutical Dosage Forms ◽  
Liquid Chromatography Method

Objective: The objective of the study was to develop and validate a novel, specific, precise, and simple reversed-phase high-performance liquid chromatography method for the estimation of guaifenesin present in methocarbamol API and its pharmaceutical dosage forms. Methods: The baseline separation for methocarbamol and guaifenesin was achieved by utilizing a Inertsil ODS C18 (250 mm × 4.6 mm) 5 μm column particle size and an isocratic elution method. The mobile phase contains a mixture of water and acetonitrile in the ratio of 70:30 v/v, respectively. The flow rate of the mobile phase was 1.0 mL/min with a column temperature of 25°C and detection wavelength at 272 nm. The method was validated for a limit of detection (LOD), limit of quantification (LOQ), linearity, accuracy, and reproducibility with the help of the exhibit and simulated samples. Results: The LOD for guaifenesin was 0.62 μg/mL. The LOQ for guaifenesin was 1.87 μg/mL. The correlation coefficient obtained for impurity was >0.99. The recovery was obtained for impurity was 106.56% at 50%, 95.20% at 100%, and 100.45% at 150%. In tablet analysis, we can found 0.26% (<0.5%). Conclusion: The developed method was validated as per the ICH guidelines with respect to specificity, precision, linearity, accuracy, LOD and quantification, ruggedness, robustness, and solution stability.

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