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Sharma S, Gupta P, Gupta A, Kawish S, Iqbal Z, Vohora D, Kohli K. Rapid Analytical Method Development and Validation of RP-HPLC Method for the Simultaneous Estimation of Exemestane and Genistein with Specific Application in Lipid-Based Nanoformulations. ACS OMEGA 2023; 8:25101-25113. [PMID: 37483215 PMCID: PMC10357584 DOI: 10.1021/acsomega.3c01791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 06/16/2023] [Indexed: 07/25/2023]
Abstract
Exemestane (EXE), an irreversible aromatase inhibitor, is employed as a therapy for hormone-dependent breast cancer. Several studies have also established the budding effects of genistein (GEN) in various types of cancer such as breast, prostate, as well as skin due to its feeble estrogenic and anti-estrogenic properties. Considering the promising benefits of GEN, it was combined with EXE to accomplish superior therapeutic efficiency with fewer side effects. The quantification of the exact concentration of EXE and GEN when delivered as a combination would be required for which HPLC method was developed and validated. For this purpose, the C18 ODS column having dimensions of 150 × 4.6 mm, 5 μm, using mobile phase A as methanol:water (35:15, v/v), with formic acid (0.01%), and B as acetonitrile (in the ratio of A:B--30:70 v/v) at a flow rate of 1 mL/min was commonly used. The Box-Behnken design was chosen as our experimental model, and the interactions among the independent and dependent variables were analyzed. Parameters like linearity, system suitability, specificity, precision (intra- and interday), robustness, ruggedness, LOD (limit of detection), and LOQ (limit of quantification) were selected for the validation of our proposed method. EXE and GEN were eluted individually at 245 and 270.5 nm, respectively, while both of the agents were determined simultaneously at 256 nm, showing retention time as 2.10 and 1.67 min, respectively, and the calibration plot was observed to be linear in the range of 5-110 μg/mL. Hence, the method that we developed and validated was found to be suitable for the identification of both the drugs simultaneously in combination and in our in-house-developed nanoformulation.
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Affiliation(s)
- Shwetakshi Sharma
- Department
of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Priya Gupta
- Department
of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Annie Gupta
- Amity
Institute of Pharmacy, Amity University, Greater Noida 201308, Uttar Pradesh, India
| | - S.M Kawish
- Department
of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Zeenat Iqbal
- Department
of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Divya Vohora
- Department
of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
| | - Kanchan Kohli
- Department
of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India
- Lloyd
Institute of Management and Technology (Pharm.), Plot No. 11, Knowledge Park-II, Greater Noida 201308, Uttar Pradesh, India
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Gong Z, Wang G, Shao S, Wang M, Lu K, Gao S. Co-degradation of coexisting pollutants methylparaben (mediators) and amlodipine in enzyme-mediator systems: Insight into the mediating mechanism. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:127112. [PMID: 34523479 DOI: 10.1016/j.jhazmat.2021.127112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/24/2021] [Accepted: 08/30/2021] [Indexed: 06/13/2023]
Abstract
Catalyzed oxidative reactions mediated by enzymes have been proposed as an effective remediation strategy to remove micropollutants. However, enzyme-catalyzed oxidation processes are usually limited to the substrates of phenols and amine compounds. The addition of synthetic redox mediators could extend the types of enzyme-catalyzed substrates. However, the actual applications were hindered by the high cost and potential toxicity of mediators. Here, we discovered a potential HRP-mediator system by exploring the removal of co-existing pollutants amlodipine (AML) and methylparaben (MeP). It was found that MeP served as a redox mediator could efficiently mediate the removal of AML by HRP/H2O2 system. Surface electrostatic potential analysis of AML molecule suggested that MeP radicals (MePOX) could abstract hydrogen from the N-H site on dihydropyridine moiety of AML and then be reduced to MeP. By exploring the mediating effects of substances with MeP-like structure, Hirshfeld charge was used to evaluate the mediating efficiency of mediators. For mediating the degradation of AML, when the Hirshfeld charge of mediator radical was around - 0.3000, the mediating efficiency was the highest. This study improved the HRP-mediated system and provided an efficient and green method for the degradation of co-existing pollutants AML and MeP.
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Affiliation(s)
- Zhimin Gong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China
| | - Gaobo Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of Mesoscopic Chemistry of Ministry of Education, Institute of Theoretical and Computational Chemistry, Nanjing University, Nanjing 210093, PR China
| | - Shuai Shao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China
| | - Mengjie Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China
| | - Kun Lu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China.
| | - Shixiang Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China.
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Sarısaltık Yaşın D, Arslantürk Bingül A, Karaküçük A, Teksin ZŞ. Development and Validation of an HPLC Method Using an Experimental Design for Analysis of Amlodipine Besylate and Enalapril Maleate in a Fixed-dose Combination. Turk J Pharm Sci 2021; 18:306-318. [PMID: 34157820 DOI: 10.4274/tjps.galenos.2020.89725] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Objectives The aim of this study was to develop and optimize a simple, cost-effective, and robust high-performance liquid chromatography (HPLC) method by taking an experimental design approach to the assay and dissolution analysis of amlodipine besylate and enalapril maleate from a fixed-dose combination tablet. Materials and Methods The chromatographic analysis was performed on a C18 column (4.6x250 mm id., particle size of 5 μm). The injection volume was 5 μL, and the detection wavelength was 215 nm. A Box-Behnken design was used to test the robustness of the method. The flow rate (1, 1.2, and 1.4 mL/min), column temperature (25°C, 30°C, and 35°C), methanol ratio of the mobile phase (5, 10, and 15%), and pH of the mobile phase (2.8, 3, and 3.2) were selected as independent variables. The method was validated according to International Conference on Harmonization guidelines. Dissolution of the tablets was performed by using USP apparatus 2 and analyzed using the optimized HPLC method. Multivariate linear regression analysis and ANOVA were used in the statistical evaluation. Results Linear models were fitted for all variables. The flow rate was the most significant factor affecting the APIs' concentrations. The optimized method included the following parameters: Column temperature of 25°C, 10% methanol as the mobile phase, pH of 2.95, and flow rate of 1.205 mL/min. Retention times were 3.8 min and 7.9 min for enalapril and amlodipine, respectively. The method was found to be linear in the range of 0.8-24 μg/mL (R2 >0.999) and 1.6-48 μg/mL (R2 >0.999) for amlodipine and enalapril, respectively. Both APIs were dissolved more than 85% within 10 min. Conclusion The experimental design was proved as a useful tool for the determination and separation of enalapril maleate and amlodipine besylate in dosage forms. The optimized method can be used for in vitro performance and quality control tests of fixed-dose tablet combinations containing enalapril maleate and amlodipine besylate.
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Affiliation(s)
- Diren Sarısaltık Yaşın
- Dicle University Faculty of Pharmacy, Department of Pharmaceutical Technology, Diyarbakır, Turkey
| | | | - Alptuğ Karaküçük
- Gazi University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey,Ankara Medipol University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
| | - Zeynep Şafak Teksin
- Gazi University Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey
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Hanif M, Shah S, Rasool N, Abbas G, Saadullah M, Khan SM, Ahmed MM, Abbas N, Ashfaq M, Iqbal O. Sodium alginate and pectin estimation in raft forming pharmaceuticals by high performance liquid chromatography method. ACTA CHROMATOGR 2021. [DOI: 10.1556/1326.2020.00765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
AbstractThe high performance liquid chromatographic (HPLC) method was developed for the combined estimation of sodium alginate and pectin in raft forming pharmaceuticals on C18 column ZORBAX ODS (1.5 cm × 4.6 mm, 5 μm) with UV detection at 378 nm. The assay condition comprised of phosphate buffer pH 7.4 and methanol 60:40% v/v at a flow rate of 1.25 mL/min. The separation of sodium alginate and pectin with good resolution and a retention time less than 8 min was attained. The method was linear over a range of 200–800 μg/mL of sodium alginate and pectin. The regression values obtained from linearity curve of sodium alginate and pectin were 0.9993 and 0.9991, respectively. The retention time of sodium alginate and pectin was 3.931 and 7.470 min, respectively. The percent recovery of sodium alginate and pectin ranged from 94.2–98.5% and 92.1–98.4% respectively. The limit of detection (LOD) and limit of quantification (LOQ) of sodium alginate were found to be 2.443 and 3.129 μg/mL and the LOD and LOQ of pectin were 3.126 and 3.785 μg/mL, respectively. The resolution of sodium alginate and pectin was found in the range of 1.03–1.89 and 1.10–1.91, respectively. This method has been successfully applied to analyze the concentrations of sodium alginate and pectin in raft forming drug delivery systems.
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Affiliation(s)
- Muhammad Hanif
- 1Faculty of Pharmacy, Bahauddin Zakariya University Multan, Multan, Pakistan
| | - Shahid Shah
- 2Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
| | - Nasir Rasool
- 3Department of Chemistry Government College University Faisalabad, Faisalabad, Pakistan
| | - Ghulam Abbas
- 4Department of Pharmaceutics, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
| | - Malik Saadullah
- 5Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
| | - Sajid Mehmood Khan
- 6Faculty of Pharmacy and Alternative Medicines, The Islamia University Bahawalpur, Bahawalpur, Pakistan
| | | | - Nazar Abbas
- 4Department of Pharmaceutics, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
| | - Mehran Ashfaq
- 4Department of Pharmaceutics, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
| | - Omeira Iqbal
- 4Department of Pharmaceutics, Faculty of Pharmaceutical Sciences Government College University Faisalabad, Faisalabad, Pakistan
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Analytical Quality by Design Approach of Reverse-Phase High-Performance Liquid Chromatography of Atorvastatin: Method Development, Optimization, Validation, and the Stability-Indicated Method. Int J Anal Chem 2021; 2021:8833900. [PMID: 33628253 PMCID: PMC7896856 DOI: 10.1155/2021/8833900] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 12/29/2020] [Accepted: 01/27/2021] [Indexed: 12/05/2022] Open
Abstract
The use of analytical quality by design (AQbD) approach in the optimization of the high-performance liquid chromatography (RP-HPLC) method is a novel tool. Three factors and three levels of Box–Behnken statistical design (BBD) were used for method optimization and analysis of atorvastatin. The mobile phase (acetonitrile: water), flow rate (Rt), and UV wavelength were used as independent variables. Their effects were observed in the area of the chromatogram (AU), retention time (Rt, min), and tailing factor (%). The optimized HPLC condition was found as acetonitrile:water (50 : 50), flow rate (0.68 ml/min), and UV wave length (235 nm). It gives the retention time of 2.43 min with the linearity range of 5–30 μg/ml with a high regression value (r2 = 0.999). The method was found to be precise and accurate with low % RSD (<5%). The refrigeration stability indicated that atorvastatin was stable. The force degradation study showed that the atorvastatin was fully unstable in UV light and stable in 0.1 M basic condition. It concluded that this QbD optimized method is suitable for quantification of the atorvastatin from the formulation as well as pharmacokinetic parameters.
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Ahmed HM, Belal TS, Shaalan RA, El Yazbi FA, Elonsy SM. Validated capillary zone electrophoretic method for simultaneous analysis of benazepril in combination with amlodipine besylate and hydrochlorothiazide. ACTA CHROMATOGR 2020. [DOI: 10.1556/1326.2019.00686] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
In this work, a novel, simple, and quick capillary zone electrophoresis (CZE) method was proposed for simultaneous analysis of benazepril (BEN) with other co-administrated antihypertensive drugs, amlodipine besylate (AML) and hydrochlorothiazide (HCT), using a diode array detector (DAD). A fused silica capillary (78.5 cm total length, 70 cm effective length, and 75 μm id) was used in separation using a 40 mM phosphate buffer pH 7.5 as a running background electrolyte (BGE) under a positive potential of 30 KV, at a stable temperature of 25 °C for capillary during separation. Hydrodynamic injections were performed for 12 s at 50 mbar, and detection was performed at 210 nm for AML and BEN, at 225 nm for HCT, and at 232 nm for xipamide (XIP) added as an internal standard (IS). Separation of the three analyzed drugs and the IS was performed in less than 8 min. Migration times were 4.06, 5.23, 6.69, and 7.3 min for AML, HCT, BEN, and XIP, respectively. The findings proved that the proposed method was linear in the range of 10–80 μg/mL for all drugs with correlation coefficients >0.9994. The limit of detection (LOD) values of AML, HCT, and BEN were 1.004, 1.224, and 0.896 μg/mL, respectively, whereas the limit of quantification (LOQ) values were 3.124, 3.727, and 2.749 μg/mL for the cited drugs, respectively. Peak identity and purity were confirmed by DAD. The developed CZE method was applied for the analysis of the three antihypertensive drugs successfully in their combined pharmaceutical tablets, and it can be used for the quality control of single-pill combination (SPC) samples of these drugs in short time.
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Affiliation(s)
- Hytham M. Ahmed
- 1 Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Shebin El-Kom, Egypt
| | - Tarek S. Belal
- 2 Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
| | - Rasha A. Shaalan
- 2 Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
- 3 Pharmaceutical Chemistry Department, Faculty of Pharmacy and Drug Manufacturing, Pharos University in Alexandria, Egypt
| | - Fawzy A. El Yazbi
- 2 Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
| | - Sohila M. Elonsy
- 4 Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt
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Attala K, Eissa MS, Hasan MA, El-Henawee MM, Abd El-Hay SS. An enhanced first derivative synchronous spectrofluorimetric method for determination of the newly co-formulated drugs, amlodipine and celecoxib in pharmaceutical preparation and human plasma. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 240:118533. [PMID: 32526403 DOI: 10.1016/j.saa.2020.118533] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/22/2020] [Accepted: 05/22/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND A new combination of amlodipine and celecoxib has been recently introduced in order to relieve the symptoms of osteoarthritis and help treat hypertension that commonly associated with osteoarthritis. OBJECTIVE The current study is the first to develop and optimize a sensitive, simple and accurate first derivative synchronous spectrofluorimetric method for the simultaneous determination of amlodipine and celecoxib in bulk powder, pharmaceutical preparation and spiked human plasma. METHOD The method implies the use of synchronous methodology using Δλ = 100 nm and measuring the fluorescence amplitudes of the first derivative each at the zero-crossing point of the other. For amlodipine and celecoxib, the emission wavelengths were at 455 nm and 368 nm, after excitation at 367 nm and 264 nm, respectively. RESULTS The method was found to be linear over a wide concentration ranges of (5-600 ng/ml), (100-2000 ng/ml) with lower limits of detection of (1.16 ng/ml) and (17.16 ng/ml) for amlodipine and celecoxib, respectively. Enhancement of the fluorescence intensity was achieved by complex formation between the studied drugs and the surfactant sodium dodecyl sulfate and optimizing other experimental conditions. The method was further extended for application for determination of the studied drugs in spiked human plasma with excellent % recoveries of (95.20 ± 6.095) and (98.67 ± 6.394) for amlodipine and celecoxib, respectively. Validation of the method was successfully implemented according to recommendations delivered by guidelines of the International Conference on Harmonization.
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Affiliation(s)
- Khaled Attala
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian Russian University, 11829 Badr City, Cairo, Egypt
| | - Maya S Eissa
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Egyptian Russian University, 11829 Badr City, Cairo, Egypt
| | - Mohamed A Hasan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, 11751 Nasr City, Cairo, Egypt
| | - Magda M El-Henawee
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Soad S Abd El-Hay
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt.
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Kokilambigai KS, Kavitha J, Seetharaman R, Lakshmi KS, Sai Susmitha A. Analytical and Bioanalytical Techniques for the Quantification of the Calcium Channel Blocker - Amlodipine: A Critical Review. Crit Rev Anal Chem 2020; 51:754-786. [PMID: 32506944 DOI: 10.1080/10408347.2020.1772036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Hypertension is a condition in which blood pressure is elevated to an extent where benefit is obtained from blood pressure lowering. The risk of complications is proportional to the level that blood pressure raises. Calcium channel blockers are a class of compounds used in the treatment of hypertension. The dihydropyridine (DHP) group, a subclass of the calcium channel blocker works almost exclusively on L-type calcium channels in the peripheral arterioles and reduce blood pressure by reducing total peripheral resistant. Long acting DHP is preferred because they are more convenient for patients and avoid the large fluctuations in plasma drug concentration which are associated with side effects. Amlodipine is the most distinct DHP and the most popular. The drug was patented in the year 1986 and its commercial sale began by 1990. The current article provides a state of art about the analytical and bioanalytical techniques available for the quantification of drug as a single entity and in combined pharmaceutical formulations between 1989 and 2019.
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Affiliation(s)
- K S Kokilambigai
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - J Kavitha
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - R Seetharaman
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - K S Lakshmi
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
| | - A Sai Susmitha
- Department of Pharmaceutical Analysis, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India
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Shalan S, Nasr JJ. Simultaneous evaluation of losartan and amlodipine besylate using second-derivative synchronous spectrofluorimetric technique and liquid chromatography with time-programmed fluorimetric detection. ROYAL SOCIETY OPEN SCIENCE 2019; 6:190310. [PMID: 31183153 PMCID: PMC6502389 DOI: 10.1098/rsos.190310] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 03/19/2019] [Indexed: 05/19/2023]
Abstract
This study is concerned with two sensitive, fast and reproducible approaches; namely, second-derivative synchronous fluorimetry (method I) and reversed phase high-performance liquid chromatography with fluorimetric detection (method II) for synchronized evaluation of losartan (LOS) and amlodipine besylate (AML). Method I is based on measuring second-derivative synchronous fluorescence spectra of LOS and AML at Δλ = 80 nm in water. The experimental factors influencing the synchronous fluorescence of the considered compounds were sensibly adjusted. The chromatographic analysis was executed on a Nucleodur MN-C18 column of dimensions; 250 × 4.6 mm i.d. and 5 µm particle size). The fluorimetric detection was time-programmed at λem = 440 nm for AML (0.0-7.5 min) and at λem = 400 nm for LOS (7.5-10 min) after excitation at λex = 245 nm. The mobile phase is a blend of acetonitrile with 0.02 M phosphate buffer in a proportion of 45 : 55, pH 4.0, pumped using a flow rate of 1 ml min-1. The calibration plots were established to be 0.1-4.0 µg ml-1 for both drugs in method I and 0.05-4.0 µg ml-1 for both drugs in method II. The study was extended to the evaluation of the two drugs in their co-formulated tablets.
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Affiliation(s)
- Shereen Shalan
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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Hosseini F, Ebrahimi M, Karimi-Maleh H. Electrochemical Determination of Mycophenolate Mofetil in Drug Samples Using Carbon Paste Electrode Modified with 1-methyl-3-butylimidazolium Bromide and NiO/SWCNTs Nanocomposite. CURR ANAL CHEM 2019. [DOI: 10.2174/1573411014666180326114345] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
The mycophenolate mofetil is an immunosuppressant drug with wide application
in the treatment of cancer and prevent rejection in organ transplantation. This drug showed many
sides effects for pregnant women and determination of this drug is very important in the human body.
Objective:
A new electrochemical strategy was described for analysis of Mycophenolate Mofetil
(MMF) using novel voltammetric sensor. The sensor was fabricated using NiO/SWCNTs and 1-methyl-
3-butylimidazolium bromide as two conductive mediators for modification of carbon paste electrode
(NiO/SWCNTs/MBBr/CPE). The NiO/SWCNTs/MBBr/CPE can be used for analysis of MMF in
aqueous buffer solution in the concentration range of 0.08-900 µM. In addition, the NiO/SWCNTs/
MBBr/CPE reduced oxidation over-potential of MMF ~ 80 mV and increased the oxidation current of
MMF ~ 2.85 times. In the final step, NiO/SWCNTs/MBBr/CPE was used for determination of MMF in
pharmaceutical serum and tablet samples.
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Affiliation(s)
- Firuzeh Hosseini
- Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Mahmoud Ebrahimi
- Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Hassan Karimi-Maleh
- Department of Chemical Engineering, Laboratory of Nanotechnology, Quchan University of Technology, Quchan, Iran
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Kurbanoglu S, Esim O, Ozkan CK, Savaser A, Ozkan Y, Ozkan SA. Development and Validation of RP-LC Method for the Simultaneous Determination of Simvastatin and Ezetimibe in Fixed-Dose Combination Tablets and in Rabbit Serum. Chromatographia 2018. [DOI: 10.1007/s10337-018-3642-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Smajić M, Vujić Z. Application of central composite design and structural analysis to the optimization of HPLC method for simultaneous analysis of hydrochlorothiazide, amlodipine besylate and valsartan. MAIN GROUP CHEMISTRY 2018. [DOI: 10.3233/mgc-180259] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Miralem Smajić
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Tuzla, Univerzitetska, Tuzla, Bosnia and Herzegovina
| | - Zorica Vujić
- Faculty of Pharmacy, Institute for Pharmaceutical Chemistry, University of Belgrade, Vojvode Stepe, Belgrade, Serbia
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13
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Development and validation of RP-HPLC and UV-spectrophotometric methods for rapid simultaneous estimation of amlodipine and benazepril in pure and fixed dose combination. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.11.043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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14
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Hemdan A. Development and validation of different methods manipulating zero order and first order spectra for determination of the partially overlapped mixture benazepril and amlodipine: A comparative study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 164:52-60. [PMID: 27078209 DOI: 10.1016/j.saa.2016.03.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 03/05/2016] [Accepted: 03/27/2016] [Indexed: 06/05/2023]
Abstract
Three simple, selective, and accurate spectrophotometric methods have been developed and then validated for the analysis of Benazepril (BENZ) and Amlodipine (AML) in bulk powder and pharmaceutical dosage form. The first method is the absorption factor (AF) for zero order and amplitude factor (P-F) for first order spectrum, where both BENZ and AML can be measured from their resolved zero order spectra at 238nm or from their first order spectra at 253nm. The second method is the constant multiplication coupled with constant subtraction (CM-CS) for zero order and successive derivative subtraction-constant multiplication (SDS-CM) for first order spectrum, where both BENZ and AML can be measured from their resolved zero order spectra at 240nm and 238nm, respectively, or from their first order spectra at 214nm and 253nm for Benazepril and Amlodipine respectively. The third method is the novel constant multiplication coupled with derivative zero crossing (CM-DZC) which is a stability indicating assay method for determination of Benazepril and Amlodipine in presence of the main degradation product of Benazepril which is Benazeprilate (BENZT). The three methods were validated as per the ICH guidelines and the standard curves were found to be linear in the range of 5-60μg/mL for Benazepril and 5-30 for Amlodipine, with well accepted mean correlation coefficient for each analyte. The intra-day and inter-day precision and accuracy results were well within the acceptable limits.
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Affiliation(s)
- A Hemdan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, 6th October, Egypt.
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15
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Ali TA, Mohamed GG, Aglan AA, Heakal FET. RP-HPLC Stability-indicating Method for Estimation of Irbesartan and Hydrochlorothiazide in Bulk and Pharmaceutical Dosage Form. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1016/s1872-2040(16)60899-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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16
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Shafi N, Siddiqui FA, Sultana N, Arayne MS. Concurrent Determination of Diltiazem, Lisinopril, Captopril, and Enalapril in Dosage Formulations and in Human Serum by Liquid Chromatographic Technique. J LIQ CHROMATOGR R T 2015. [DOI: 10.1080/10826076.2015.1050503] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Nighat Shafi
- Faculty of Pharmacy, Federal Urdu University Arts, Science and Technology, Karachi, Pakistan
| | - Farhan Ahmed Siddiqui
- Faculty of Pharmacy, Federal Urdu University Arts, Science and Technology, Karachi, Pakistan
| | - Najma Sultana
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Karachi, Karachi, Pakistan
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17
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Galal A, Atta NF, Azab SM, Ibrahim AH. Electroanalysis of Benazepril Hydrochloride Antihypertensive Drug Using an Ionic Liquid Crystal Modified Carbon Paste Electrode. ELECTROANAL 2015. [DOI: 10.1002/elan.201400652] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Aydoǧmuş Z. Simultaneous determination of aliskiren, amlodipine and hydrochlorothiazide in spiked human plasma and urine by high performance liquid chromatography. JOURNAL OF ANALYTICAL CHEMISTRY 2015. [DOI: 10.1134/s1061934815040176] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Jakimska A, Śliwka-Kaszyńska M, Nagórski P, Namieśnik J, Kot-Wasik A. Phototransformation of amlodipine: degradation kinetics and identification of its photoproducts. PLoS One 2014; 9:e109206. [PMID: 25279815 PMCID: PMC4184881 DOI: 10.1371/journal.pone.0109206] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Accepted: 09/10/2014] [Indexed: 01/01/2023] Open
Abstract
Nowadays, monitoring focuses on the primary compounds and does not include degradation products formed during various biological and chemical processes. Transformation products may have the same effects to human health and the environment or sometimes they can be more toxic than the parent compound. Unfortunately, knowledge about the formation of degradation products is still limited, however, can be very important for the environmental risk assessment. Firstly, the photodegradation kinetic of amlodipine was investigated in two experimental conditions: during the exposure to solar radiation and during the exposure to the light emitted by the xenon lamp. In all cases degradation of amlodipine followed a pseudo-first-order kinetics. In the next step, identification of transformation products of amlodipine formed during the exposure to xenon lamp irradiation was performed using ultra high performance liquid chromatography quadrupole time-of-flight mass spectrometry (UHPLC-QTOF-MS). As a result sixteen photoproducts were identified, their structures were elucidated and ultimately the transformation pathway was proposed. Fifteen compounds (out of 16 photoproducts) were newly identified and reported here for the first time; some of those compounds were formed from the first photoproduct, amlodipine pyridine derivative. Several analytes were formed only in acidic or basic conditions. Furthermore, the occurrence of amlodipine and its identified degradation products was investigated in environmental waters. Only one out of 16 compounds was found in wastewater effluent. The possibility of the sorption of examined analytes to sewage sludge particles was discussed based on QSAR.
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Affiliation(s)
- Anna Jakimska
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | | | - Piotr Nagórski
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - Jacek Namieśnik
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
| | - Agata Kot-Wasik
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, Gdańsk, Poland
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20
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Rezk MR, Badr KA. Development, optimization and validation of a highly sensitive UPLC–ESI-MS/MS method for simultaneous quantification of amlodipine, benazeprile and benazeprilat in human plasma: Application to a bioequivalence study. J Pharm Biomed Anal 2014; 98:1-8. [DOI: 10.1016/j.jpba.2014.05.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/01/2014] [Accepted: 05/05/2014] [Indexed: 11/24/2022]
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21
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Ashfaq M, Akhtar T, Mustafa G, Danish M, Razzaq SN, Nazar MF. Simultaneous estimation of rosuvastatin and amlodipine in pharmaceutical formulations using stability indicating HPLC method. BRAZ J PHARM SCI 2014. [DOI: 10.1590/s1984-82502014000300023] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A viable cost-effective and isocratic approach employing C-18 column (250 mm × 4.6 mm, 5 µm) based HPLC has been utilized to separate and estimate the drugs, rosuvastatin, amlodipine and their stress induced degradation products, simultaneously in pharmaceutical formulations. Focused on ICH guideline parameters, the efficient separation of both drugs and their degradation products was achieved by optimizing a 30:70 (v/v) solvent mixture of acetonitrile and 0.1 M ammonium acetate buffer (pH 5) as mobile phase. The flow rate of the mobile phase was 1.5 mL/min and all the detections were carried out at 240 nm using UV detector. The method was linear in the concentration range of 1-200 µg/mL for rosuvastatin with 0.996 coefficient of determination value. For amlodipine, linearity was in the range of 0.5-100 µg/ml with 0.994 coefficient of determination value. Both the drugs along with their degradation products were separated in less than twenty minutes. The results of within-day and between-day precision were varied from 0.72 to 1.81% for rosuvastatin and 0.83 to 1.88% for amlodipine. The results show that this ICH validated method can be employed successfully for the routine as well as stability quantification of both the active ingredients simultaneously in pharmaceutical formulations.
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22
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Tiwari RN, Shah N, Bhalani V, Mahajan A. LC, MS n and LC-MS/MS studies for the characterization of degradation products of amlodipine. J Pharm Anal 2014; 5:33-42. [PMID: 29403913 PMCID: PMC5761482 DOI: 10.1016/j.jpha.2014.07.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 06/25/2014] [Accepted: 07/07/2014] [Indexed: 12/01/2022] Open
Abstract
In the present study, comprehensive stress testing of amlodipine (AM) was carried out according to International Conference on Harmonization (ICH) Q1A(R2) guideline. AM was subjected to acidic, neutral and alkaline hydrolysis, oxidation, photolysis and thermal stress conditions. The drug showed instability in acidic and alkaline conditions, while it remained stable to neutral, oxidative, light and thermal stress. A total of nine degradation products (DPs) were formed from AM, which could be separated by the developed gradient LC method on a C18 column. The products formed under various stress conditions were investigated by LC–MS/MS analysis. The previously developed LC method was suitably modified for LC–MS/MS studies by replacing phosphate buffer with ammonium acetate buffer of the same concentration (pH 5.0). A complete fragmentation pathway of the drug was first established to characterize all the degradation products using LC–MS/MS and multi-stage mass (MSn) fragmentation studies. The obtained mass values were used to study elemental compositions, and the total information helped with the identification of DPs, along with its degradation pathway.
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Affiliation(s)
- Ravi N Tiwari
- Department of Pharmaceutical Chemistry, SVKM׳s NMIMS, School of Pharmacy and Technology Management, Near Bank of Tapi River, Agra-Mumbai Road, Babulde, Shirpur, Dist. Dhule 425405, Maharashtra, India
| | - Nishit Shah
- Department of Pharmaceutical Chemistry, SVKM׳s NMIMS, School of Pharmacy and Technology Management, Near Bank of Tapi River, Agra-Mumbai Road, Babulde, Shirpur, Dist. Dhule 425405, Maharashtra, India
| | - Vikas Bhalani
- Department of Pharmaceutical Chemistry, SVKM׳s NMIMS, School of Pharmacy and Technology Management, Near Bank of Tapi River, Agra-Mumbai Road, Babulde, Shirpur, Dist. Dhule 425405, Maharashtra, India
| | - Anand Mahajan
- Department of Pharmaceutical Chemistry, Sinhgad Institute of Pharmacy, Pune, Maharashtra, India
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23
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Farouk M, Elaziz OA, Tawakkol SM, Hemdan A, Shehata MA. Comparative study between univariate spectrophotometry and multivariate calibration as analytical tools for quantitation of Benazepril alone and in combination with Amlodipine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 123:473-481. [PMID: 24424258 DOI: 10.1016/j.saa.2013.12.094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2013] [Revised: 12/06/2013] [Accepted: 12/15/2013] [Indexed: 06/03/2023]
Abstract
Four simple, accurate, reproducible, and selective methods have been developed and subsequently validated for the determination of Benazepril (BENZ) alone and in combination with Amlodipine (AML) in pharmaceutical dosage form. The first method is pH induced difference spectrophotometry, where BENZ can be measured in presence of AML as it showed maximum absorption at 237nm and 241nm in 0.1N HCl and 0.1N NaOH, respectively, while AML has no wavelength shift in both solvents. The second method is the new Extended Ratio Subtraction Method (EXRSM) coupled to Ratio Subtraction Method (RSM) for determination of both drugs in commercial dosage form. The third and fourth methods are multivariate calibration which include Principal Component Regression (PCR) and Partial Least Squares (PLSs). A detailed validation of the methods was performed following the ICH guidelines and the standard curves were found to be linear in the range of 2-30μg/mL for BENZ in difference and extended ratio subtraction spectrophotometric method, and 5-30 for AML in EXRSM method, with well accepted mean correlation coefficient for each analyte. The intra-day and inter-day precision and accuracy results were well within the acceptable limits.
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Affiliation(s)
- M Farouk
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Omar Abd Elaziz
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Shereen M Tawakkol
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - A Hemdan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Ahram Canadian University, 6th October, Egypt.
| | - Mostafa A Shehata
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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24
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Influence of pharmaceutical excipients on stability of pramipexole dihydrochloride monohydrate in tablets. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2013. [DOI: 10.1007/s40005-013-0113-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Sultana N, Arayne MS, Ali SN. Liquid chromatographic method for the simultaneous determination of captopril, piroxicam, and amlodipine in bulk drug, pharmaceutical formulation, and human serum by programming the detector. J Sep Sci 2013; 36:3176-83. [DOI: 10.1002/jssc.201300104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 04/22/2013] [Accepted: 07/12/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Najma Sultana
- Research institute of Pharmaceutical Sciences; Faculty of Pharmacy, University of Karachi; Karachi Pakistan
| | - M. Saeed Arayne
- Department of Chemistry; University of Karachi; Karachi Pakistan
| | - Saeeda Nadir Ali
- Department of Chemistry; University of Karachi; Karachi Pakistan
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26
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Uchida T, Yoshida M, Hazekawa M, Haraguchi T, Furuno H, Teraoka M, Ikezaki H. Evaluation of palatability of 10 commercial amlodipine orally disintegrating tablets by gustatory sensation testing, OD-mate as a new disintegration apparatus and the artificial taste sensor. J Pharm Pharmacol 2013; 65:1312-20. [DOI: 10.1111/jphp.12101] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Accepted: 05/12/2013] [Indexed: 11/30/2022]
Abstract
Abstract
Objectives
The purpose of this study was to evaluate and compare the palatability of 10 formulations (the original manufacturer's formulation and nine generics) of amlodipine orally disintegrating tablets (ODTs) by means of human gustatory sensation testing, disintegration/dissolution testing and the evaluation of bitterness intensity using a taste sensor.
Methods
Initially, the palatability, dissolution and bitterness intensity of the ODTs were evaluated in gustatory sensation tests. Second, the disintegration times of the ODTs were measured using the OD-mate, a newly developed apparatus for measuring the disintegration of ODTs, and lastly, the bitterness intensities were evaluated using an artificial taste sensor.
Key findings
Using factor analysis, the factors most affecting the palatability of amlodipine ODTs were found to be disintegration and taste. There was high correlation between the disintegration times of the 10 amlodipine ODTs estimated in human gustatory testing and those found using the OD-mate. The bitterness intensities of amlodipine ODTs 10, 20 and 30 s after starting the conventional brief dissolution test and the values determined by the taste sensor were highly correlated with the bitterness intensities determined in gustatory sensation testing.
Conclusions
The OD-mate and the taste sensor may be useful for predicting the disintegration and bitterness intensity of amlodipine ODTs in the mouth.
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Affiliation(s)
- Takahiro Uchida
- Department of Clinical Pharmaceutics, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya City, Japan
| | - Miyako Yoshida
- Department of Clinical Pharmaceutics, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya City, Japan
| | - Mai Hazekawa
- Department of Clinical Pharmaceutics, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya City, Japan
| | - Tamami Haraguchi
- Department of Clinical Pharmaceutics, Faculty of Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya City, Japan
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27
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Characterization of stress degradation products of benazepril by using sophisticated hyphenated techniques. J Chromatogr A 2013; 1271:124-36. [DOI: 10.1016/j.chroma.2012.11.044] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 11/03/2012] [Accepted: 11/16/2012] [Indexed: 11/18/2022]
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28
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Zaazaa HE, Abbas SS, Essam HAM, El-Bardicy MG. Validated Chromatographic Methods for Determination of Perindopril and Amlodipine in Pharmaceutical Formulation in the Presence of their Degradation Products. J Chromatogr Sci 2012; 51:533-43. [DOI: 10.1093/chromsci/bms171] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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29
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Mahmoud AM, Abdel-Wadood HM, Mohamed NA. Kinetic spectrophotometric method for determination of amlodipine besylate in its pharmaceutical tablets. J Pharm Anal 2012; 2:334-341. [PMID: 29403763 PMCID: PMC5760782 DOI: 10.1016/j.jpha.2012.03.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Accepted: 03/07/2012] [Indexed: 11/28/2022] Open
Abstract
A simple and sensitive kinetic spectrophotometric method has been developed and validated for determination of amlodipine besylate (AML). The method was based on the condensation reaction of AML with 7-chloro-4-nitro-2,1,3-benzoxadiazole in an alkaline buffer (pH 8.6) producing a highly colored product. The color development was monitored spectrophometrically at the maximum absorption λmax 470 nm. The factors affecting the reaction were studied and the conditions were optimized. The stoichiometry of the reaction was determined, and the reaction pathway was postulated. Moreover, both the activation energy and the specific rate constant (at 70 °C) of the reaction were found to be 6.74 kcal mole-1 and 3.58 s-1, respectively. The initial rate and fixed time methods were utilized for constructing the calibration graphs for the determination of AML concentration. Under the optimum reaction conditions, the limits of detection and quantification were 0.35 and 1.05 μg/mL, respectively. The precision of the method was satisfactory; the relative standard deviations were 0.85-1.76%. The proposed method was successfully applied to the analysis of AML in its pure form and tablets with good accuracy; the recovery percentages ranged from 99.55±1.69% to 100.65±1.48%. The results were compared with that of the reported method.
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Affiliation(s)
| | | | - Niveen A. Mohamed
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
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30
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Chen K, Zhang J, Liu S, Zhang D, Teng Y, Wei C, Wang B, Liu X, Yuan G, Zhang R, Zhao W, Guo R. Simultaneous determination of lercanidipine, benazepril and benazeprilat in plasma by LC–MS/MS and its application to a toxicokinetics study. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 899:1-7. [DOI: 10.1016/j.jchromb.2012.04.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2011] [Revised: 04/06/2012] [Accepted: 04/08/2012] [Indexed: 10/28/2022]
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31
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Patel DB, Mehta FA, Bhatt KK. Simultaneous Estimation of Amlodipine Besylate and Indapamide in a Pharmaceutical Formulation by a High Performance Liquid Chromatographic (RP-HPLC) Method. Sci Pharm 2012; 80:581-90. [PMID: 23008807 PMCID: PMC3447622 DOI: 10.3797/scipharm.1203-07] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2012] [Accepted: 04/30/2012] [Indexed: 11/22/2022] Open
Abstract
An isocratic reversed-phase liquid chromatograpic assay method was developed for the quantitative determination of amlodipine besylate (AML) and indapamide (IND) in combined dosage form. A Brownlee C-18, 5 μm column with a mobile phase containing 0.02 M potassium dihydrogen phosphate-methanol (30+70, v/v) total pH-adjusted to 3 using o-phosphoric acid was used. The flow rate was 1.0 mL min(-1) and effluents were monitored at 242 nm. The retention times of amlodipine besylate and indapamide were 5.9 min and 3.6 min, respectively. The proposed method was validated with respect to linearity, accuracy, precision, and robustness. The method was successfully applied to the estimation of amlodipine besylate and indapamide in combined tablet dosage forms.
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Affiliation(s)
- Deval B Patel
- Department of Pharmaceutical Chemistry and Analysis, Indukaka Ipcowala College of Pharmacy, New Vallabh Vidyanagar - 388121, Gujarat, India
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32
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Santhana Lakshmi K, Lakshmi S. Simultaneous Analysis of Losartan Potassium, Amlodipine Besylate, and Hydrochlorothiazide in Bulk and in Tablets by High-Performance Thin Layer Chromatography with UV-Absorption Densitometry. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2012; 2012:108281. [PMID: 22567550 PMCID: PMC3335319 DOI: 10.1155/2012/108281] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Accepted: 01/23/2012] [Indexed: 05/03/2023]
Abstract
A Simple high-performance thin layer chromatography (HPTLC) method for separation and quantitative analysis of losartan potassium, amlodipine, and hydrochlorothiazide in bulk and in pharmaceutical formulations has been established and validated. After extraction with methanol, sample and standard solutions were applied to silica gel plates and developed with chloroform : methanol : acetone : formic acid 7.5 : 1.3 : 0.5 : 0.03 (v/v/v/v) as mobile phase. Zones were scanned densitometrically at 254 nm. The R(f) values of amlodipine besylate, hydrochlorothiazide, and losartan potassium were 0.35, 0.57, and 0.74, respectively. Calibration plots were linear in the ranges 500-3000 ng per spot for losartan potassium, amlodipine and hydrochlorothiazide, the correlation coefficients, r, were 0.998, 0.998, and 0.999, respectively. The suitability of this method for quantitative determination of these compounds was by validation in accordance with the requirements of pharmaceutical regulatory standards. The method can be used for routine analysis of these drugs in bulk and in formulation.
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33
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Kumar KK, Rao CK, Madhusudan G, Mukkanti K. Rapid Simultaneous Determination of Olmesartan, —Amlodipine and Hydrochlorothiazide in Combined Pharmaceutical Dosage form by Stability-Indicating Ultra Performance Liquid Chromatography. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ajac.2012.31008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Abstract
A spectrophotometric method was developed for simultaneous determination of amlodipine (Aml) and valsartan (Val) without previous separation. In this method amlodipine in methanolic solution was determined using zero order UV spectrophotometry by measuring its absorbency at 360.5 nm without any interference from valsartan. Valsartan spectrum in zero order is totally overlapped with that of amlodipine. First, second and third derivative could not resolve the overlapped peaks. The first derivative of the ratio spectra technique was applied for the measurement of valsartan. The ratio spectrum was obtained by dividing the absorption spectrum of the mixture by that of amlodipine, so that the concentration of valsartan could be determined from the first derivative of the ratio spectrum at 290 nm. Quantification limits of amlodipine and valsartan were 10–80 μg/ml and 20–180 μg/ml respectively. The method was successfully applied for the quantitative determination of both drugs in bulk powder and pharmaceutical formulation.
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Wankhede SB, Raka KC, Wadkar SB, Chitlange SS. Spectrophotometric and HPLC methods for simultaneous estimation of amlodipine besilate, losartan potassium and hydrochlorothiazide in tablets. Indian J Pharm Sci 2011; 72:136-40. [PMID: 20582208 PMCID: PMC2883219 DOI: 10.4103/0250-474x.62239] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2009] [Revised: 10/14/2009] [Accepted: 01/17/2010] [Indexed: 11/04/2022] Open
Abstract
Two UV-spectrophotometric and one reverse phase high performance liquid chromatography methods have been developed for the simultaneous estimation of amlodipine besilate, losartan potassium and hydrochlorothiazide in tablet dosage form. The first UV spectrophotometric method was a determination using the simultaneous equation method at 236.5, 254 and 271 nm over the concentration range 5-25, 10-50 and 5-25 mug/ml for amlodipine besilate, losartan potassium and hydrochlorothiazide, respectively. The second UV method was a determination using the area under curve method at 231.5-241.5, 249-259 and 266-276 nm over the concentration range of 5-25, 5-25 and 10-50 mug/ml for amlodipine besilate, hydrochlorothiazide and losartan potassium, respectively. In reverse phase high performance liquid chromatography analysis is carried out using 0.025 M phosphate buffer (pH 3.7):acetonitrile (57:43 v/v) as the mobile phase and Kromasil C18 (4.6 mm i.dx250 mm) column as stationery phase with detection wavelength of 232 nm linearity was obtained in the concentration range of 2-14, 20-140 and 5-40 mug/ml for amlodipine besilate, losartan potassium and hydrochlorothiazide, respectively. Both UV-spectrophotometric and reverse phase high performance liquid chromatography methods were statistically validated and can be used for analysis of combined dose tablet formulation containing amlodipine besilate, losartan potassium and hydrochlorothiazide.
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Affiliation(s)
- S B Wankhede
- Department of Pharmaceutical Chemistry, Padmashree Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Sant Tukaram Nagar, Pimpri, Pune-018, India
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36
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Varghese SJ, Ravi TK. QUANTITATIVE SIMULTANEOUS DETERMINATION OF AMLODIPINE, VALSARTAN, AND HYDROCHLOROTHIAZIDE IN “EXFORGE HCT” TABLETS USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY AND HIGH-PERFORMANCE THIN-LAYER CHROMATOGRAPHY. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.565539] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Susheel John Varghese
- a Department of Pharmaceutical Analysis, College of Pharmacy , Sri Ramakrishna Institute of Paramedical Sciences , Tamil Nadu, India
| | - Thengungal Kochupappy Ravi
- a Department of Pharmaceutical Analysis, College of Pharmacy , Sri Ramakrishna Institute of Paramedical Sciences , Tamil Nadu, India
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37
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Nalwade S, Ranga Reddy V, Durga Rao D, Koteswara Rao I. Rapid simultaneous determination of telmisartan, amlodipine besylate and hydrochlorothiazide in a combined poly pill dosage form by stability-indicating ultra performance liquid chromatography. Sci Pharm 2011; 79:69-84. [PMID: 21617773 PMCID: PMC3097503 DOI: 10.3797/scipharm.1006-10] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Accepted: 01/04/2011] [Indexed: 11/25/2022] Open
Abstract
A simple, precise and rapid stability-indicating ultra-performance liquid chromatography (UPLC) method is developed for the simultaneous quantitative determination of Telmisartan, Amlodipine besylate and Hydrochlorothiazide from their innovative poly pill combination drug product in the presence of degradation products. It involves a 100 mm x 2.1 mm, 1.7 μm C-18 column. The separation is achieved on a simple gradient method. The mobile phase A contains a mixture of sodium perchlorate buffer pH 3.2 (0.053M): acetonitrile in the ratio 90:10, v/v, and mobile B contains a mixture of sodium perchlorate buffer pH 3.2 (0.053M): acetonitrile in the ratio 20:80, v/v. The flow rate is 0.6 mL min(-1) and the column temperature is maintained at 55°C.The gradient program (T/%B) is set as 0/5, 1.2/5, 1.6/40, 4/40, 4.1/5 and 4.5/5. The detector wavelength is 271 nm for Hydrochlorothiazide and Telmisartan and 237 nm for Amlodipine. The retention times of Telmisartan, Amlodipine, and Hydrochlorothiazide are 3.6 minutes, 3.2 minutes and 0.9 minutes; respectively. The total runtime for the separation of the three active compounds and their degradation products is 4.5 minutes. The described method is validated with respect to system suitability, specificity, linearity, precision and accuracy. The precision of the assay method is evaluated by carrying out six independent assays of T, A and H (0.032 mg mL(-1) of T, 0.004 mg mL(-1) of A, 0.01 mg mL(-1) of H). The accuracy of the method is evaluated in triplicate at three concentration levels, i.e. 50%, 100% and 150% of target test concentration (0.64 mg mL(-1) of T, 0.08 mg mL(-1) of A, 0.2 mg mL(-1) of H). The described method is linear over the range, 16 to 48 μg mL(-1) for T, 2 to 6 μg mL(-1)A and 5 to 15 μg mL(-1) for H. The method is fast and suitable for high-throughput analysis allowing the analysis of about 250 samples per working day.
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Affiliation(s)
- Santaji Nalwade
- Analytical Research and Development, Integrated Product Development, Dr. Reddy's Laboratories Ltd., Bachupally, Hyderabad-500 072, India.
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Wankhede SB, Wadkar SB, Raka KC, Chitlange SS. Simultaneous estimation of amlodipine besilate and olmesartan medoxomil in pharmaceutical dosage form. Indian J Pharm Sci 2010; 71:563-7. [PMID: 20502580 PMCID: PMC2866353 DOI: 10.4103/0250-474x.58190] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 07/18/2009] [Accepted: 09/18/2009] [Indexed: 11/04/2022] Open
Abstract
Two UV Spectrophotometric and one reverse phase high performance liquid chromatography methods have been developed for the simultaneous estimation of amlodipine besilate and olmesartan medoxomil in tablet dosage form. First UV spectrophotometric method was a determination using the simultaneous equation method at 237.5 nm and 255.5 nm over the concentration range 10-50 mug/ml and 10-50 mug/ml, for amlodipine besilate and olmesartan medoxomil with accuracy 100.09%, and 100.22% respectively. Second UV spectrophotometric method was a determination using the area under curve method at 242.5-232.5 nm and 260.5-250.5 nm over the concentration range of 10-50 mug/ml and 10-50 mug/ml, for amlodipine besilate and olmesartan medoxomil with accuracy 100.10%, and 100.48%, respectively. In reverse phase high performance liquid chromatography analysis carried out using 0.05M potassuim dihydrogen phosphate buffer:acetonitrile (50:50 v/v) as the mobile phase and Kromasil C18 (4.6 mm i.d.x250 mm) column as the stationery phase with detection wavelength of 238 nm. Flow rate was 1.0 ml/min. Retention time for amlodipine besilate and olmesartan medoxomil were 3.69 and 5.36 min, respectively. Linearity was obtained in the concentration range of 4-20 mug/ml and 10-50 mug/ml for amlodipine besilate and olmesartan medoxomil, respectively. Proposed methods can be used for the estimation of amlodipine besilate and olmesartan medoxomil in tablet dosage form provided all the validation parameters are met.
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Affiliation(s)
- S B Wankhede
- Department of Pharmaceutical Chemistry, Pad. Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research, Sant Tukaram Nagar, Pimpri, Pune-411 018, India
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Kamble AY, Mahadik MV, Khatal LD, Dhaneshwar SR. Validated HPLC and HPTLC Method for Simultaneous Quantitation of Amlodipine Besylate and Olmesartan Medoxomil in Bulk Drug and Formulation. ANAL LETT 2010. [DOI: 10.1080/00032710903325906] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Hefnawy MM, Sultan M, Al-Johar H. Development of Capillary Electrophoresis Technique for Simultaneous Measurement of Amlodipine and Atorvastatin from Their Combination Drug Formulations. J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070903320681] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Mohamed M. Hefnawy
- a Department of Pharmaceutical Chemistry , College of Pharmacy, King Saud University , Riyadh, Saudi Arabia
| | - Maha Sultan
- a Department of Pharmaceutical Chemistry , College of Pharmacy, King Saud University , Riyadh, Saudi Arabia
| | - Haya Al-Johar
- a Department of Pharmaceutical Chemistry , College of Pharmacy, King Saud University , Riyadh, Saudi Arabia
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Shama SA, Amin AS, Mabrouk ESM, Omara HA. Utility of oxidation–reduction reaction for the spectrophotometric determination of amlodipine besylate. ARAB J CHEM 2009. [DOI: 10.1016/j.arabjc.2009.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Pedroso CF, Oliveira JG, Campos FR, Gonçalves AG, Trindade ACLB, Pontarolo R. A Validated RP–LC Method for Simultaneous Determination of Losartan Potassium and Amlodipine Besilate in Pharmaceutical Preparations. Chromatographia 2009. [DOI: 10.1365/s10337-009-1005-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Kazemipour M, Ansari M, Mohammadi A, Beitollahi H, Ahmadi R. Use of adsorptive square-wave anodic stripping voltammetry at carbon paste electrode for the determination of amlodipine besylate in pharmaceutical preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2009. [DOI: 10.1134/s1061934809010134] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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KASAWAR GB, FAROOQUI MN. Simultaneous Determination of Amlodipine Besylate and Benazepril Hydrochloride in Pharmaceutical Dosage Form by LC. ANAL SCI 2009; 25:1495-8. [DOI: 10.2116/analsci.25.1495] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Gajanan B KASAWAR
- Dr. Rafiq Zakaria Campus, Post Graduate Studies and Research Center, Moulana Azad College Rouza Bagh
| | - Mazahar N FAROOQUI
- Dr. Rafiq Zakaria Campus, Post Graduate Studies and Research Center, Moulana Azad College Rouza Bagh
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Fakhari AR, Nojavan S, Haghgoo S, Mohammadi A. Development of a stability-indicating CE assay for the determination of amlodipine enantiomers in commercial tablets. Electrophoresis 2008; 29:4583-92. [DOI: 10.1002/elps.200800330] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Dhaneshwar SR, Patre NG, Mahadik MV. Validated TLC Method for Simultaneous Quantitation of Amlodipine Besylate and Valsartan in Bulk Drug and Formulation. Chromatographia 2008. [DOI: 10.1365/s10337-008-0858-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Stability of amlodipine besylate and atenolol in multi-component tablets of mono-layer and bi-layer types. ACTA PHARMACEUTICA 2008; 58:299-308. [PMID: 19103566 DOI: 10.2478/v10007-008-0012-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Multi-drug tablets of amlodipine besylate and atenolol were prepared as either mono-layer (mixed matrix) or bilayer tablets containing each drug in a separate layer by using similar excipients and processing. Each tablet batch was packed in strip and blister packs and kept under accelerated temperature and humidity conditions. The stability of two tablet and packaging types was compared by HPLC analysis after 0, 1, 3 and 4.5 months and expressed as the content of intact amlodipine and atenolol. The content of atenolol did not decline regardless of tablet and packaging type. Amlodipine content in bi-layer tablets decreased to about 95 and 88% when packed in strips and blisters, respectively. When prepared as mono-layer tablets, the content decreased to 72 and 32%, respectively.The study revealed that the bi-layer tablet formulation was more stable than the mono-layer type. Further, the stability was increased when the tablets were packed in aluminium strips as compared to PVC blisters.
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Latosińska J. 13C CP MAS NMR and DFT study of vascular-selective drugs felodipine and amlodipine. Chem Phys Lett 2008. [DOI: 10.1016/j.cplett.2008.08.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kostarnoi AV, Golubitskii GB, Basova EM, Budko EV, Ivanov VM. High-performance liquid chromatography in the analysis of multicomponent pharmaceutical preparations. JOURNAL OF ANALYTICAL CHEMISTRY 2008. [DOI: 10.1134/s1061934808060026] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Jankovics P, Németh T, Németh-Palotás J, Kőszegi-Szalai H. Amlodipine Besilate Screening in Pharmaceutical Preparations by CE. Chromatographia 2008. [DOI: 10.1365/s10337-008-0620-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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