scholarly journals Isocratic RP-HPLC Method for Simultaneous Separation and Estimation of Zofenopril and Hydrochlorthiazide in Pharmaceutical Dosage Forms

2012 ◽  
Vol 9 (2) ◽  
pp. 999-1006 ◽  
Author(s):  
G. S. Devika ◽  
M. Sudhakar ◽  
J. Venkateshwara Rao

A simple, rapid, sensitive and accurate isocratic reverse phase high performance liquid chromatographic (RP-HPLC) method has been developed and subsequently validated for the simultaneous determination of Zofenopril and Hydrochlorthiazide in combined dosage form. Chromatographic separation of the two drugs was performed on a Purospher BDS C18 column (250 mm × 4.6 mm id, 5 μm particle size). The mobile phase comprising of acetonitrile methanol: 0.02M NaH22PO4buffer (40:20:40) was delivered at a flow rate of 1.0mL/min. The pH of the mobile phase is adjusted to 7.2 with Sodium hydroxide solution. Detection was performed at 245 nm.The separation was completed within 10 min and the retention time of hydrochlorthiazide is 4.62 and Zofenopril is 6.86 min respectively. Calibration curves were linear with R2between 0.99-1.0 over a concentration range of 100-600 μg/ml for Zofenopril calcium and 50-300 μg/ml for hydrochlorthiazide..The developed method was successfully applied to determi

Author(s):  
Zubaidur Rahman ◽  
Vijey Aanandhi M ◽  
Sumithra M

Objective: A simple, novel, sensitive, rapid high-performance liquid chromatographic (RP-HPLC) method has been developed and validated for quantitative determination of atomoxetine HCl (ATH) in bulk and formulations.Methods: The chromatographic development was carried out on RP-HPLC. The column used as Xterra RP 18 (250 mm × 4.6 mm, 5 μ particle size), with mobile phase consisting of methanol: water 80:20 V/V. The flow rate was 1.0 mL/min and the effluents were monitored at 270 nm.Results: The retention time was found to be 5.350 min. The method was validated as per International Conference on Harmonization Guideline with respect to linearity, accuracy, precision, and robustness. The calibration curve was found to be linear over a range of 2–10 μg/mL with a regression coefficient of 0.9999. The method has proved high sensitivity and specificity.Conclusion: The results of the study showed that the proposed RP-HPLC method was simple, rapid, precise and accurate which is useful for the routine determination of ATH in bulk drug and in its pharmaceutical dosage form.


1982 ◽  
Vol 65 (5) ◽  
pp. 1063-1065
Author(s):  
Stanley E Roberts

Abstract A high performance liquid chromatographic (HPLC) method is described for the quantitative determination of primidone in tablets. A ground tablet sample is diluted directly in the mobile phase, at a concentration of about 1 mg/mL of primidone, mixed and deaerated, and filtered. The resulting solution is then quantitated by HPLC. The average spike recoveries for the 50 mg and 250 mg tablets were 101.2% and 99.0%, respectively. The average recovery for an authentic mixture formulated at the 250 mg level was 100.1% with a relative standard deviation of 0.45%.


2015 ◽  
Vol 1092-1093 ◽  
pp. 662-665
Author(s):  
Sai Dan Zhang ◽  
Ping Lv ◽  
Xiu Zhu

A rapid, sensitive and reproducible high performance liquid chromatographic (HPLC) method was developed and validated for simultaneous quantification of hypocrellin A, hypocrellin B from Fermentation Broth of Shiraia bambusicola LPHP-89. Isocratic RP-HPLC system with C18 column (4.6 mm × 250 mm i.d., 5 μ particle size) and a detector UV-VWD was employed. The mobile phase consisted of methanol、water and acetic acid (60:40:1, v/v/v) and was pumped at a flow rate of 1.0 mL/min. The injection volume was5 μL. The quantitation wavelength was set at 254 nm.Total run time was 20 min and retention times for hypocrellin A and hypocrellin B were 10.06 and 15.38 min, respectively.


2021 ◽  
Vol 37 (02) ◽  
pp. 493-498
Author(s):  
Mohan Bhatale ◽  
Neelakandan Kaliyaperumal ◽  
Gopalakrishnan Mannathusamy ◽  
Gurunathan Ramalingam

A simple, selective, linear having accuracy and specific of reverse phase high-performance liquid chromatographic (RP-HPLC) method for determination of Genotoxic impurity Hydroxylamine Hydrochloride of drug Leflunomide is reported.The separation and analysis were done on YMC Triart C18 (4.6 mm x 150 mm), having particle size 3.0 μm. KH2PO4 in 2000 mL of purified water and 2 mL triethylamine with pH 2.5 with phosphoric acid is mobile phase-A while acetonitrile is mobile Phase-B with gradient program. The elution achieved with 1.50 mL/min flow rate and using UV detection at 230 nm wavelength. Selected column oven temperature is 45°C and auto sampler 5°C respectively. In this method linearity and accuracy of Hydroxylamine HCl covered with specification limit of LOQ to 150 % (i.e.3 to 23 ppm). The observed correlation coefficient is 0.99965 and recovery in between 99.07 to 114.94. In method precision (ie.repeatability) and intermediate precision (IP) observed % RSD of six spiked test preparation is below 5.0 %. The standard and sample were stable for 3 days when stored at 2 to 8°C temperature. In robustness studies system suitability parameters ie tailing factor, theoretical plates and %RSD does not show significant changes. The present RP-HPLC method is selective, robust, linear, and precise for detection of Hydroxylamine HCl.


Author(s):  
M. Murali ◽  
P. Venkateswara Rao

A simple, selective, linear, precise and accurate isocratic RP-HPLC method was developed and validated for rapid assay of Vandetanib, an anticancer drug, in both bulk and tablet dosage form. Elution at a flow rate of 1ml/min was employed on a symmetry C18 column at ambient temperature. The mobile phase consisted of acetonitrile, water and orthophosphoric acid in the ratio of 90:08:02 (v/v/v). Linearity was observed in concentration range of 50-200 ppm. The retention time for Vandetanib was 3.326 min. The method was validated as per the ICH guidelines. The proposed method can be successfully applied for the estimation of Vandetanib in pharmaceutical dosage forms. Moreover the detection alone was also verified through LC-MS of the Vandetanib drug using ESI method which provides future scope for study of this drug using LC-MS method also.


Author(s):  
Hemraj Sharma ◽  
Boya Madhuri ◽  
Yiragamreddy Padmanabha Reddy ◽  
Kondareddy Vinod Kumar ◽  
Nanda Kishor Bhatta ◽  
...  

A novel approach was used to develop and validate a rapid, specific, accurate and precise Reverse phase High performance liquid chromatographic (RP-HPLC) method for the simultaneous determination of Metformin and Sitagliptin in pharmaceutical dosage forms and its applications to dissolution study. The chromatographic separation was carried out on a C8 (250mm X 4.6 mm i.d., 5μm) column with a mobile phase of 40 Acetonitrile: 60 Phosphate Buffer (pH 6.8), using UV detector at 257 nm at 1ml min-1 flow rate. The retention time for Metformin was 2.11 minutes and 5.30 minutes for Sitagliptin. The Linearity for Metformin was found to be 10-80 µg ml-1 with R2 value of 0.9998 and for Sitagliptin 1-8 µg ml-1 with R2 value of 0.9976. Dissolution study of both for Metformin and Sitagliptin was carried, Percentage of drug release was established which was found to be 96.23% and 102.64% respectively, in the period of 50 minutes. Keywords: RP-HPLC, Metformin, Sitagliptin, Dissolution study


Author(s):  
Zahid Zaheer ◽  
Sarfaraz Khan ◽  
Mohammad Sadeque ◽  
Hundekari G. I. ◽  
Rana Zainuddin

A simple, reproducible and efficient reverse phase high performance liquid chromatographic method was developed for Lisinopril in bulk drug and formulation. A column having 150 × 4.6 mm in isocratic mode with mobile phase containing acetonitrile: phosphate buffer (70:30; adjusted to pH 3.0) was used. The flow rate was 0.8 ml/min and effluent was monitored at 216 nm. The retention time (min) and linearity range (μg/ml) for Lisinopril was (1.510) and (10-35). The developed method was found to be accurate, precise and selective for determination of Lisinopril in bulk and formulation.


2019 ◽  
Vol 6 (6) ◽  
pp. 56-59
Author(s):  
Bhavik, Sharma ◽  
Sushil Kumar Agarwal

Acebrophylline is an anti-inflammatory and airway mucus regulator. It had ambroxol and theophylline-7-acetic acid, the former facilitates the biosynthesis of pulmonary surfactant which raises blood levels of ambroxol, by stimulating surfactant production. Chemical structure of acebrophylline is 1, 2, 3, 6- tetrahydro-1, 3-dimethyl-2, 6-dioxo-7H-purine-7-aceticacidwithtrans-4-[(2-amino-3, 5 dibromophenyl) methyl] aminio] cyclohexanol. Survey revealed that various analytical methods like spectrophotometric, HPLC, and RP-HPLC, have been reported for the determination of Ambroxol HCl and Theophylline-7-acetic acid, individually and in combination with some other drugs. The aim of present study was to develop and validate stability indicating HPLC method for the analyses of acebrophylline. High performance liquid chromatographic method has been developed for the estimation of Acebrophylline. Reported methods also include RP-HPLC method for determination of Acebrophylline. The developed UV spectrophotometric method is simple and requires less time for the analysis. It is also rapid and economic method.


2017 ◽  
Vol 1 (2) ◽  
pp. 1-8
Author(s):  
Milena Cristina Ribeiro Souza Magalhães ◽  
Alisson Samuel Portes Caldeira ◽  
Hanna De Sousa Rocha Almeida ◽  
Sílvia Ligório Fialho ◽  
Armando Da Silva Cunha Junior

A reversed-phase high-performance liquid chromatographic (HPLC) method was developed and validated for the determination of encapsulation efficiency of zidovudine in nanoparticules. The method was carried out in isocratic mode using 0.040M sodium acetate: methanol: acetonitrile: glacial acetic acid (880:100:20:2) as mobile phase, a C8 column at 25ºC and UV detection at 240 nm. The method was linear (r2 ˃ 0.99) over the range of 25.0-150.0 μg/mL, precise (RSD ˂ 5%), accurate (recovery = 100.5%), robust and selective. The validated HPLC-UV method can be successfully applied to determine the rate of zidovudine in nanoparticules.


2021 ◽  
Vol 19 (7) ◽  
pp. 196-208
Author(s):  
H.N.K. AL-Salman ◽  
Ekhlas Qanber Jasim ◽  
Hussein H. Hussein

Objective: The current study aims to find a suitable, accurate, and faster RP-HPLC technique for the determination of theophylline, which could then be validated in accordance with the International Conference on Harmonization (ICH) guidelines. The Aim of this Study: The aim of this study was to develop an efficient, accurate, and faster RP-HPLC method for determining theophylline, which was then validated using the International Conference on Harmonization (ICH) guidelines. Methods: In the HPLC analysis, the Waters 2695 was used. The drug was isolated better using an Ion Pac zorbax 300-SCX Agilent Column, 5 m, 4.6 250 mm, with a liquid phase of Orthophosphoric acid (0.1 percent Orthophosphoric acid in HPLC acetonitrile and Methanol in the ratio of 50:50 v/v at a flow rate of 1ml/min, with discovery at 280 nm using a PDA detector. Results: Theophylline's preservation time was discovered to be 3.747 0.127 min. In the 5-25 mg/l range, the procedure was found to be linear, with a parallel coefficient (R2) of 0.9998. The LOD and LOQ of the system were determined to be (0.99 and 3) g/ml, respectively. The technique and system precisions were predicted using, and the outcomes were determined as percent RSD principles, which were noticed to be within the strict limitations. Theophylline recovery was detected to be in the 99-100 percent range, confirming the method's precision. Conclusion: Using basic ICH guidelines, the suggested RP-HPLC process was validated. The following methodology can be used successfully and easily for routine diagnostic analysis.


Sign in / Sign up

Export Citation Format

Share Document