Theophylline Determination in Pharmaceuticals Using a Novel High-performance Liquid Chromatographic Process

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.

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.


2017 ◽  
Vol 9 (3) ◽  
pp. 42
Author(s):  
P. Rajeev Kumar ◽  
Rekha Rajeevkumar

Objective: Develop a simple isocratic reverse phase high performance liquid chromatographic method (RP-HPLC) and validate for the determination of lincomycin hydrochloride (LMH) in bulk and pharmaceutical preparations.Methods: RP-HPLC quantification was carried out by using fine pack SIL RPC18 column. The mobile phase (methanol: water) was pumped at a flow rate of 1 ml/min in the ratio of 90:10 v/v and the eluents were monitored at 254 nm.Results: The retention time of the drug was 3.73 min and produced at a linear response in the concentration range of 5-25µg/ml. The percentage RSD was found to be below 2%. The LOD and LOQ were found to be 0.854µg/ml and 0.258µg/ml respectively.Conclusion: Validation of the method was performed for precision, accuracy, linearity, ruggedness, specificity and sensitivity to conform to ICH guidelines for valuation for analytical methods.


INDIAN DRUGS ◽  
2018 ◽  
Vol 55 (06) ◽  
pp. 63-68
Author(s):  
R. Raut ◽  
◽  
A. Patil ◽  
V. K Munipalli ◽  
M. Patel ◽  
...  

A simple precise and rapid Reverse Phase High Performance Liquid Chromatographic (RP-HPLC) method has been developed for quantitative determination of Regorafenib in tablet dosage form. In this method Hypersil Gold (C18, 150mm× 4.6mm id, 3μ) column with mobile phase consisting of Trifluoroacetic acid (0.2% v/v) and Acetonitrile in the ratio of (50: 50 v/v) at 400C in an isocratic mode was used. The detection was carried out at 260 nm and 20μL injection volume was selected with the flow rate 1mL/min. The linearity range of Regorafenib shows concentration between 5-200 μg/mL. The regression coefficient obtained was 0.999. Retention time of Regorafenib was found to be 6.49 minutes. Acetonitrile and Water in the ratio of (3:1) was used as a diluent. The method was validated as per ICH guidelines and is simple, fast, accurate, precise and can be applied for routine quality control analysis of Regorafenib in tablet dosage form.


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.


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.


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.


2011 ◽  
Vol 8 (4) ◽  
pp. 1958-1964 ◽  
Author(s):  
H. R. Prajapati ◽  
P. N. Raveshiya ◽  
J. M. Prajapati

A reversed phase high performance liquid chromatographic (RP–HPLC) method was developed and subsequently validated for the determination of atomoxetine hydrochloride in bulk and pharmaceutical formulation. The separation was done by a PerkinElmer Brownlee analytical C8 column (260 mm x 4.6 mm, 5 µm) using methanol: 50 mM KH2PO2buffer (PH adjusted to 6.8 with 0.1 M NaOH), 80:20 v/v as an eluent. UV detection was performed at 270 nm at a flow rate 1.0 mL/min. The validation of the method was performed, and specificity, reproducibility, precision accuracy and ruggedness were confirmed. The correlation coefficient was found to be 0.997 for atomoxetine hydrochloride. The recovery was in the range of 99.94 to 100.98% and limit of quantification was found to be 5.707 µg/mL. The method is simple, rapid, selective and economical too and can be used for the routine analysis of drug in pharmaceutical formulations.


2008 ◽  
Vol 5 (s2) ◽  
pp. 1117-1122 ◽  
Author(s):  
B. Prasanna Kumar Reddy ◽  
Y. Ramanjaneya Reddy

A simple, selective, accurate reverse phase-high performance liquid chromatographic (RP-HPLC) method was developed and validated for the analysis of sildenafil citrate in pharmaceutical formulations. Chromatographic separation achieved isocratically on a C18column (Use Inertsil C18, 5μ , 150 mm x 4.6 mm) utilizing a mobile phase of acetonitrile/phosphate buffer (70:30, v/v, pH 7.0) at a flow rate of 0.8 mL/m with UV detection at 228 nm. The retention time was 4.087. The method is accurate (99.15-101.85%), precise (intra-day variation 0.13-1.56% and inter-day variation 0.30-1.60%) and linear within range 0.1-30 μg/mL (R2=0.999) concentration and was successfully used in monitoring left over drug. The detection limit of sildenafil citrate at a signal-to-noise ratio of 3 was 1.80 ng/mL in human plasma while quantification limit in human serum was 5.60 ng/mL. The proposed method is applicable to stability studies and routine analysis of sildenafil citrate in pharmaceutical formulations as well as in human plasma samples.


INDIAN DRUGS ◽  
2012 ◽  
Vol 49 (05) ◽  
pp. 61-64
Author(s):  
A. L Rao ◽  
◽  
R. V Bhaskara

A reverse phase high performance liquid chromatographic method was developed and validated asper ICH guidelines for estimation of trandolapril and verapamil in combined tablet dosage form. Theseparation was obtained using a mobile phase consisting of acetonitrile and phosphate buffer adjustingpH to 3.0 in the ratio of 70:30 v/v and using Waters C18 (250 x 4.6 mm, 5 mcm) column maintained atambient temperature. The flow rate was 1.2 mL min-1 and UV detection was monitored at 215 nm. Theretention time (min) and linearity range (mcg mL-1) for trandolapril and verapamil were (5.12, 2.70) and(20-60, 20-60), respectively. The method validation results are within the acceptance criteria for precision,accuracy and linearity. The proposed method was found to be suitable for routine quality control ofmarketed formulation containing these APIs.


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