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Khorshed AA, Abdelnaeem FM, Derayea SM, Nagy DM, Oraby M. Enhancing simultaneous determination of some angiotensin II receptor antagonists and amlodipine in plasma using HPTLC with fluorescence densitometry: Independent fluorescence detection of the co-administrative drugs in the mixture across various pH conditions. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1241:124162. [PMID: 38824745 DOI: 10.1016/j.jchromb.2024.124162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 05/10/2024] [Accepted: 05/17/2024] [Indexed: 06/04/2024]
Abstract
A novel and highly sensitive high-performance thin-layer chromatographic (HPTLC) method was developed and validated to quantify a combination of five pharmaceutical mixtures spiked to human plasma. The compounds comprised Amlodipine (AML) along with five angiotensin II receptor antagonist drugs (AIIRAs), namely Olmesartan (OLM), Telmisartan (TLM), Candesartan (CAN), Losartan (LOS), and Irbesartan (IRB). HPTLC was performed on silica gel 60 F254 plates using a mobile phase of Toluene: ethyl acetate: methanol: acetone: acetic acid (6:1.5:1:0.5:1, v/v/v/v/v). In a pioneering move, a reflectance/fluorescence detection mode was employed to identify two concurrently administered drugs at different pH levels for the first time. This method utilized the same chromatographic system, incorporating a specific measurement for AML at a neutral medium to achieve its maximum fluorescence at a 360 nm excitation wavelength, and measuring emission using a 540 nm optical filter. The process involved obtaining a very low fluorescence response from AIIRA. Subsequently, to enhance AIIRA's fluorescence, the plate was sprayed with perchloric acid to transition to a strong acidic medium, ultimately attaining the maximum fluorescence of AIIRA using various excitation wavelengths and a 400 nm emission filter. Through this strategic process, we could optimize the fluorescence signals of both drugs, thereby elevating the sensitivity of detection for this drug combination. AML demonstrated a linear range of 18-300 ng/band, while AIIRAs drugs exhibited a linear range of 6-150 ng/band. The method satisfied the International Conference on Harmonization (ICH) criteria for recovery, precision, repeatability, and robustness, showcasing exceptional sensitivity. The approach was successfully applied to quantify AML and AIIRAs drugs in both bulk drug and plasma samples, achieving high recovery percentages and minimal standard deviations.
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Affiliation(s)
- Ahmed A Khorshed
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag 82524, Egypt; Department of Biomedical Engineering, University of Alberta, Edmonton, AB T6G 1H9, Canada.
| | - Fatma M Abdelnaeem
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag 82524, Egypt
| | - Sayed M Derayea
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, 61519 Minia, Egypt
| | - Dalia M Nagy
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, 61519 Minia, Egypt
| | - Mohamed Oraby
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Sohag University, Sohag 82524, Egypt
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Shehata AM, Omar MA, Mostafa IM, Elbadawy HM, Almaghrabi M, Mohamed AA. Fine-tuning Fluorescence of Amlodipine Adopting on Blocking of Photoinduced Electron Transfer (PET): Application in Human Plasma. J Fluoresc 2024:10.1007/s10895-024-03761-2. [PMID: 38773031 DOI: 10.1007/s10895-024-03761-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Accepted: 05/05/2024] [Indexed: 05/23/2024]
Abstract
Assessing medication adherence through the determination of antihypertensive drugs in biological matrices holds significant importance. Amlodipine (AP), a potent antihypertensive medication extensively prescribed for hypertensive patients, is particularly noteworthy in this context. This article aims to introduce a rapid, simple, improved sensitivity, and reproducibility in detecting AP in its pure form, tablet formulation, and spiked human plasma than the other reported methods. The proposed method utilizes a fluorescence approach, relying on the inhibition of the intramolecular photoinduced electron transfer (PET) effect of the lone pair of the N-atom in the primary amino moiety of AP. This inhibition is achieved by acidifying the surrounding medium using 0.2 M acetic acid. By blocking PET, the target AP drug is sensitively detected, at [Formula: see text] 423 nm over a concentration range 25-500 ng mL- 1 showcasing an exceptionally low quantitation limit of 1.41 ng mL- 1. Notably, this innovative technique was successfully applied to detect AP in its solid dosage form and spiked human plasma. Remarkably, matrix interference was found to be insignificant, underscoring the robustness and applicability of the established approach. The combination of speed, sensitivity, and reproducibility makes this method particularly suitable for assessing medication adherence in patients prescribed AP for hypertension.
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Affiliation(s)
- Ahmed M Shehata
- Departement of Pharmacology and Toxicology, College of Pharmacy, Taibah University, Al-Madinah Al-Munawwarah, Madinah, 41477, Saudi Arabia
- Departement of Pharmacology and Toxicology, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, 62511, Egypt
| | - Mahmoud A Omar
- Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy, Taibah University, Al-Madinah Al-Munawwarah, Madinah, 41477, Saudi Arabia
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Minia, 61511, Egypt
| | - Islam M Mostafa
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Minia, 61511, Egypt.
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, PR China.
| | - Hossein M Elbadawy
- Departement of Pharmacology and Toxicology, College of Pharmacy, Taibah University, Al-Madinah Al-Munawwarah, Madinah, 41477, Saudi Arabia
| | - Mohammed Almaghrabi
- Department of Pharmacognosy and Pharmaceutical Chemistry, College of Pharmacy, Taibah University, Al-Madinah Al-Munawwarah, Madinah, 41477, Saudi Arabia
| | - Abobakr A Mohamed
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Fayoum University, Fayoum, 63514, Egypt
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Kammoun AK, Afify MA, Youssef RM, El-Nahass SA, Younis SE. Ecological assessment and development of analytical methods for concurrent quantification of valsartan and sacubitril: whiteness comparative study based on relative scoring. RSC Adv 2024; 14:16318-16326. [PMID: 38774613 PMCID: PMC11106649 DOI: 10.1039/d4ra01997k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 05/06/2024] [Indexed: 05/24/2024] Open
Abstract
Sustainable analytical chemistry is gaining great interest in global environmental pollution control. In addition, valsartan (VAS) and sacubitril (SAB) have been recently approved by the FDA as a fixed-dose combination "LCZ696". It showed efficacy and safety enough to extend its application from heart failure to hypertension control. VAS/SAB dual therapy is considered expensive; however, its prescription has increased significantly worldwide. This prescription increased the demand for developing sustainable analytical methods that simultaneously analyze VAS and SAB. Highly sensitive and selective spectrofluorimetric methods have been developed for this purpose. A synchronous spectrofluorimetric technique was applied. In one method, it was followed by spectral derivatization at the first-order level. The signals were recorded at 230 and 211 nm for VAS and SAB, respectively. Synchronous spectrofluorimetry was coupled to a dual-wavelength mathematical approach in the second method. Signals were derived by subtracting synchronous responses at 241 nm, 226 nm, and 239 nm from the response at 208 nm for VAS and SAB, respectively. Method validation was carried out following ICH guidelines. VAS showed linear calibration curves spanning the range of 60-200 and 80-600 ng mL-1 for the derivative and dual wavelength-assisted approaches, respectively. SAB achieved linear responses in the range of 17-190 and 30-350 ng mL-1 for the first and second methods, respectively. The green profile of the proposed methods was confirmed using the analytical eco-scale (AES), green analytical procedure index (GAPI), and analytical greenness metric (AGREE) tools. The proposed hybrid methods proved highly sustainable through the whiteness RGB 12 algorithm evaluation approach. Whiteness was comparatively assessed for the proposed and reported methods based on relative scoring depending on the parameters of each method. Despite this scoring approach being accurate as a relative score for comparative purposes, it gave rise to underestimated absolute scores. Therefore, to obtain a proper conclusion from the comparative whiteness study, all the methods were ranked according to their whiteness score, illustrating the excellent whiteness ranks of the proposed methods. Upon complete comparison with the reported methods, the suggested ones showed several advantages concerning analytical performance and the greenness level. The proven affordability and simplicity encourage their wide industrial application in developing countries.
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Affiliation(s)
- Ahmed K Kammoun
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University P.O. Box 80260 Jeddah 21589 Saudi Arabia
| | - Mostafa A Afify
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Alexandria University Alexandria Egypt
| | - Rasha M Youssef
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Alexandria University Alexandria Egypt
| | - Sara A El-Nahass
- Healthy Care Clinics, Alexandria/INTRAWOOD, International Trading of Wood Alexandria Egypt
| | - Sameh E Younis
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Pharos University in Alexandria Alexandria Egypt
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Alqarni AM, Haredy AM, Abdelrahman KS, Soltan OM, Abdel-Aal MAA, Alrofaidi MA, Aalamri A, Osman ME, Alamri AA, Hamad AA. Application of a white and green spectrofluorimetric approach for facile quantification of amlodipine, a hypotensive drug, in batch materials, dosage forms, and biological fluids; content homogeneity testing. LUMINESCENCE 2024; 39:e4661. [PMID: 38286594 DOI: 10.1002/bio.4661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/02/2023] [Accepted: 12/05/2023] [Indexed: 01/31/2024]
Abstract
The suggested study adheres to a particular protocol to ensure that the process is environmentally friendly and sustainable. It is worth mentioning that several tools have been adopted as prospective measures of the method greenness. Fortunately, the established analytical method is identified as white by the white analytical chemistry (WAC) concept, which uses the red/ green/blue color scheme (RGB 12 tool) to combine ecological and functional factors for the first time in studying of the cited drug. Amlodipine (AMD), a cardiovascular treating agent, belongs to the dihydropyridine class of oral calcium channel-blocking agents. This article presents a novel, simple, green, one-pot-processed, fast, and ultrasensitive fluorimetric approach for monitoring and assessment of AMD using molecular-size-dependent fluorescence augmentation of the light scattering-driven signal of eosin, a biological stain at a wavelength of 415 nm. This enhancement was directly proportional to the size of the produced complex. The linearity range was from 30 to 900 ng mL-1 , with corresponding sensitivity limits (detection and quantitation levels) of 9.2 and 28 ng mL-1 , respectively. The planned approach was also successfully used to track AMD content in bulk, dosage forms, and bio-fluids (human plasma and urine). The developed method's eco-friendliness was established by different eco-rating metric tools.
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Affiliation(s)
- Abdulmalik M Alqarni
- Department of Pharmaceutical Chemistry, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Ahmed M Haredy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Merit University, New Sohag, Egypt
| | - Kamal S Abdelrahman
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Osama M Soltan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Mohamed A A Abdel-Aal
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
| | - Mohammad A Alrofaidi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Al-Baha University, Al-Baha, Saudi Arabia
| | - Abdulwahab Aalamri
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Hail, Hail, Saudi Arabia
| | - Mhdia Elhadi Osman
- Department of Clinical Pharmacy, Pharmacy College, University of Hail, Hail, Saudi Arabia
| | - Ahmed Awadh Alamri
- Medical Services, Ministry of Interior-Security Forces Hospital in Najran, Najran, Saudi Arabia
| | - Ahmed Abdulhafez Hamad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, Egypt
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Badr El-Din KM, Salem H, Derayea S, Abdelaziz A, Nagy DM. Utilization of erythrosine B in spectrofluorimetric quenching analysis of amlodipine and perindopril in pharmaceutical and biological matrices. LUMINESCENCE 2023; 38:1583-1590. [PMID: 37325939 DOI: 10.1002/bio.4540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 05/06/2023] [Accepted: 06/12/2023] [Indexed: 06/17/2023]
Abstract
A spectrofluorimetric approach that is sensitive, simple, validated, and cost-effective has been proposed for the estimation of amlodipine (AML) and perindopril (PER) in their bulk powders, pharmaceutical formulations, and spiked human plasma. The recommended approach utilized the quantitative quenching effect of the two cited drugs on the fluorescence intensity of erythrosine B, as a result of complex binary reactions among each drug with erythrosine B at pH 3.5 (Teorell and Stenhagen buffer). The quenching of erythrosine B fluorescence was recorded at 554 nm after excitation at 527 nm. The calibration curve was detected in the range 0.25-3.0 μg ml-1 , with a correlation coefficient of 0.9996 for AML, and 0.1-1.5 μg ml-1 , with a correlation coefficient of 0.9996 for PER. The established spectrofluorimetric approach was validated for the estimation of the cited drugs with high sensitivity regarding International Council on Harmonization guidelines. Therefore, the established approach could be utilized for quality control of the cited drugs in their pharmaceutical formulations.
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Affiliation(s)
- Khalid M Badr El-Din
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Hesham Salem
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Deraya University, New Minia, Egypt
| | - Sayed Derayea
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Amany Abdelaziz
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Deraya University, New Minia, Egypt
| | - Dalia M Nagy
- Analytical Chemistry Department, Faculty of Pharmacy, Minia University, Minia, Egypt
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Sebaiy MM, El-Adl SM, Baraka MM, Hassan AA, El-Sayed HM. Quality by design approach for development and validation of a RP-HPLC method for simultaneous estimation of xipamide and valsartan in human plasma. BMC Chem 2022; 16:70. [PMID: 36127740 PMCID: PMC9487044 DOI: 10.1186/s13065-022-00864-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 08/29/2022] [Indexed: 11/21/2022] Open
Abstract
A new rapid, simple, and sensitive RP-HPLC method was carried out through applying Quality by Design approach for determination of xipamide and valsartan in Human plasma. Fractional factorial design was used for screening of four independent factors: pH, flow rate, detection wavelength, and % of MeOH. Analysis of variance (ANOVA) confirmed that flow rate and % of MeOH were only significant. Chromatographic conditions optimization was carried out through using central composite design. Method analysis was performed using BDS Hypersil C8 column (250 × 4.6 mm, 5 μm) and an isocratic mobile phase of MeOH and 0.05 M KH2PO4 buffer pH 3 (64.5:35.5, v/v) at 1.2 mL/min flow rate with UV detection at 240 nm and 10 μL injection volume. According to FDA guidelines, the method was then validated for the determination of the two drugs clinically in human plasma in respect of future pharmacokinetic and bioequivalence simulation studies. The standard curve was linear in the concentration range of 5-100 µg/mL for both drugs, with a determination coefficient (R2) of 0.999. Also, the average recoveries lied within the range from 99.89 to 100.03%. The proposed method showed good predictability and robustness.
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Affiliation(s)
- Mahmoud M Sebaiy
- Medicinal Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt.
| | - Sobhy M El-Adl
- Medicinal Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Mohamed M Baraka
- Medicinal Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Amira A Hassan
- Medicinal Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Heba M El-Sayed
- Analytical Chemistry Department, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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Zeid AM, Aboshabana R, Ibrahim FA. First-order derivative synchronous spectrofluorimetric determination of two antihypertensive drugs, metolazone and valsartan, in pharmaceutical and biological matrices. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120591. [PMID: 34789407 DOI: 10.1016/j.saa.2021.120591] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 10/30/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
In this study, a facile, rapid, and sensitive spectrofluorimetric method was evolved to analyse two antihypertensive drugs, namely, metolazone (MTZ) and valsartan (VST), in pharmaceutical and biological matrices. Both analytes exhibited intrinsic fluorescence activities which were significantly affected by environmental factors such as pH and solvent systems. However, simultaneous determination of MTZ and VST by conventional spectrofluorometry cannot be achieved simply because of the strong overlap between their fluorescence spectra. Thus, a combination of derivative and synchronous spectrofluorometry was conducted to overcome this dilemma. The proposed method relies on measurement of the first-order derivative of synchronous fluorescence intensity of the studied drugs at Δλ = 160 nm using 0.1 M acetic acid as the optimum solvent. The amplitudes of the first derivative synchronous fluorescence spectra of MTZ and VST were recorded at 236.0 nm (zero-crossing point of VST) and at 262.8 nm (zero-crossing point of MTZ) for simultaneous analysis of MTZ and VST, respectively. The fluorescent method was optimized efficiently to get the maximum selectivity and sensitivity by investigating different solvents, different buffer pHs, and different surfactants. The highest sensitivity and selectivity were achieved when 0.1 M acetic acid was used as a solvent. The method showed a linear concentration range of 10.0-100.0 ng mL-1 and a limit of detection of <3.0 ng mL-1 for each analyte. Statistical data analysis confirmed that no significant difference between the proposed spectrofluorometric method and the reference methods. The validity of the proposed spectrofluorometric method approved its suitability for quality control work. The proposed spectrofluorometric method was applied to assay the studied drugs in pharmaceutical dosage and in biological matrices with acceptable %recoveries and small RSD values.
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Affiliation(s)
- Abdallah M Zeid
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Rasha Aboshabana
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Fawzia A Ibrahim
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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Elonsy SM, El Yazbi FA, Shaalan RA, Ahmed HM, Belal TS. Application of MEKC and UPLC with Fluorescence Detection for Simultaneous Determination of Amlodipine Besylate and Bisoprolol Fumarate. J AOAC Int 2021; 104:339-347. [PMID: 33259587 DOI: 10.1093/jaoacint/qsaa136] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/29/2020] [Accepted: 09/15/2020] [Indexed: 11/14/2022]
Abstract
OBJECTIVE Two chromatographic methods were described for simultaneous determination of the antihypertensive drugs amlodipine besylate (AML) and bisoprolol fumarate (BIS). METHODS Method I applies micellar electrokinetic capillary chromatography using a deactivated fused silica capillary (25 cm effective length × 50 μm internal diameter). The background electrolyte consisted of 0.01 M borate buffer (pH 9.2) containing 0.025 M sodium dodecyl sulphate and methanol in the ratio of 80:20 (v/v). Valsartan (VAL) was used as an internal standard. Diode array detector was set at 238, 224, and 210 nm for measuring AML, BIS, and VAL, respectively. Method II involves using ultra-performance liquid chromatography with fluorescence detection. Zorbax SB-C8 column (2.1 × 100 mm, 1.8 μm particle size) was used with isocratic elution of the mobile phase composed of 0.1% trifluoroacetic acid, acetonitrile, and methanol in the ratio of 55:35:10 (v/v) at a flow rate of 0.6 mL/min. Fluorescence detection was done using excitation wavelengths 230 and 370 nm and emission wavelengths 305 and 450 nm for BIS and AML, respectively. Validation parameters were carefully studied including linearity, ranges, precision, accuracy, robustness, detection, and quantification limits. RESULTS Method I showed good linearity over the range 10-100 μg/mL for both dugs. Method II's linear ranges were 0.001-0.1 and 0.02-1 µg/mL for BIS and AML, respectively. CONCLUSION The proposed methods were successfully validated and applied for assay of the studied drugs in their fixed-dose combination tablets. HIGHLIGHTS To the best of our knowledge, this study suggests the first electro-chromatographic and LC with fluorescence detection methods for simultaneous determination of amlodipine and bisoprolol.
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Affiliation(s)
- Sohila M Elonsy
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt
| | - Fawzy A El Yazbi
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
| | - Rasha A Shaalan
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt.,Pharmaceutical Chemistry Department, Faculty of Pharmacy, Pharos University in Alexandria, Alexandria, Egypt
| | - Hytham M Ahmed
- Pharmaceutical Analysis Department, Faculty of Pharmacy, Menoufia University, Egypt
| | - Tarek S Belal
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, University of Alexandria, Alexandria 21521, Egypt
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Pandya PA, Shah PA, Shrivastav PS. Application of supercritical fluid chromatography for separation and quantitation of 15 co-formulated binary anti-hypertensive medications using a single elution protocol. Biomed Chromatogr 2020; 35:e5035. [PMID: 33226650 DOI: 10.1002/bmc.5035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Revised: 11/17/2020] [Accepted: 11/20/2020] [Indexed: 11/05/2022]
Abstract
A facile supercritical fluid chromatography method is proposed to analyse 15 co-formulated binary anti-hypertensive drug combinations using a customized elution procedure. The effect of mobile phase composition, column back pressure and temperature was suitably optimized for adequate retention, analyte response and resolution. The chromatographic separation of the different drug combinations was performed on a DCPak poly(4-vinylpyridine) column (250 × 4.6 mm, 5 μm) at 125-bar pressure and 40°C using a photodiode array detector. A linear gradient of CO2 and 0.1% formic acid in methanol provided the best elution conditions for all drug combinations. Baseline separation of the drugs was possible with resolution factor Rs ranging from 1.42 to 12.58. The method was validated for specificity, sensitivity, accuracy and precision, recovery and robustness. The limit of detection and limit of quantitation for aliskiren, amlodipine, atenolol, candesartan, hydrochlorothiazide, lisinopril, losartan, metoprolol, olmesartan, telmisartan and valsartan were in the range of 0.26-2.56 and 0.77-7.75 μg/mL, respectively. The thermodynamic study revealed that interactions of the drugs with the stationary phase were spontaneous as evident from the negative free energy values, and the separation process was enthalpy driven. The developed method was successfully employed to analyse these drugs in their co-formulated tablet formulations.
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Affiliation(s)
- Pranav A Pandya
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Priyanka A Shah
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
| | - Pranav S Shrivastav
- Department of Chemistry, School of Sciences, Gujarat University, Ahmedabad, India
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10
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Synergistic effect of carbon nanotubes, copper and silver nanoparticles as an efficient electrochemical sensor for the trace recognition of amlodipine besylate drug. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2807-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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11
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Ahmad I, Sheraz MA, Ahmed S, Anwar Z. Multicomponent spectrometric analysis of drugs and their preparations. PROFILES OF DRUG SUBSTANCES, EXCIPIENTS, AND RELATED METHODOLOGY 2019; 44:379-413. [PMID: 31029223 DOI: 10.1016/bs.podrm.2018.11.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Pharmaceutical preparations may contain a single ingredient or multi-ingredients as well as excipients. In multicomponent systems, specific analytical methods are required to determine the concentrations of individual components in the presence of interfering substances. Ultraviolet and visible spectrometric methods have widely been developed for the analysis of drugs in mixtures and pharmaceutical preparations. These methods are based on ultraviolet and visible multicomponent analysis and chemometrics (multivariate data analysis). The commonly used chemometric methods include principal component analysis (PCA); regression involving classical least squares (CLS), partial least squares (PLS), inverse least squares (ILS), principal component regression (PCR), multiple linear regression (MLR), artificial neural networks (ANNs); soft independent modeling of class anthology (SIMCA), PLS-discriminant analysis (DA); and functional data analysis (FDA). In this chapter, the applications of multicomponent ultraviolet and visible, derivative, infrared and mass spectrometric and spectrofluorimetric methods to the analysis of multi-ingredient pharmaceutical preparations, biological samples and the kinetics of drug degradation have been reviewed. Chemometric methods provide an efficient solution to calibration problems in the analysis of spectral data for the simultaneous determination of drugs in multicomponent systems. These methods facilitate the assessment of product quality and enhance the efficiency of quality control systems.
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Affiliation(s)
- Iqbal Ahmad
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Karachi, Pakistan
| | - Muhammad Ali Sheraz
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Karachi, Pakistan
| | - Sofia Ahmed
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Karachi, Pakistan
| | - Zubair Anwar
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Karachi, Pakistan
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12
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Ragab MAA, Korany MA, Galal SM, Ahmed AR. Voltammetric study of valsartan–Ni complex: application to valsartan analysis in pharmaceuticals and in vivo human urine profiling. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-018-00671-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Alarfaj NA, Altamimi SA, El-Tohamy MF, Almahri AM. Exploitation of localized surface plasmon resonance of silver/gold nanoparticles for the fluorescence quantification of angiotensin II receptor antagonists in their tablets and bio-samples. NEW J CHEM 2019. [DOI: 10.1039/c8nj05218b] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present study suggested six different fluorimetric systems for the determination of three angiotensin II receptor antagonists, candesartan cilexetil (CDC), valsartan (VAL) and telmisartan (TEL) in their bulk and pharmaceutical dosage forms.
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Affiliation(s)
- N. A. Alarfaj
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11495
- Saudi Arabia
| | - S. A. Altamimi
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11495
- Saudi Arabia
| | - M. F. El-Tohamy
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11495
- Saudi Arabia
| | - A. M. Almahri
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11495
- Saudi Arabia
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Ahmad I, Mirza T, Anwar Z, Ejaz MA, Sheraz MA, Ahmed S. Multicomponent spectrofluorimetric method for the assay of formylmethylflavin and its hydrolytic products: Kinetic applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 205:540-550. [PMID: 30075434 DOI: 10.1016/j.saa.2018.07.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2018] [Revised: 07/18/2018] [Accepted: 07/23/2018] [Indexed: 06/08/2023]
Abstract
A multicomponent spectrofluorimetric method has been developed for the simultaneous assay of formylmethylflavin (FMF), an intermediate product in the photolysis of riboflavin (vitamin B2), and its side-chain hydrolytic products, lumichrome (LC) in acidic solution and LC and lumiflavin (LF) in the alkaline solution as well as its ring cleavage products, 1,2-dihydro-1-methyl-2-keto-3-quinoxaline carboxylic acid (KA) and 1,2,3,4-tetrahydro-1-methyl-2,3-dioxo-quinoxaline (DQ) in alkaline solution. The assay method also takes into account an oxidation product of FMF, i.e. carboxymethylflavin (CMF), in both acid and alkaline solutions. The method involves adjustment of the pH of hydrolysed solution to 2.0 to convert FMF to its protonated form, extraction of LC (acid solution) or LC and LF (alkaline solution) with chloroform and their simultaneous assay by fluorescence measurement at 478 and 530 nm, respectively. The aqueous phase is readjusted to pH 6.5, extracted with chloroform to remove undegraded FMF and used for the assay of CMF, KA and DQ at 530, 443 and 420 nm, respectively. The chloroform extract is used for the assay of FMF at 530 nm. The proposed method has been validated and applied to the study of the kinetics of a hydrolysis reaction of FMF at pH 11.0. The calibration curves for FMF and degradation products are linear in the range of 0.1-1.0 × 10-6 M. The limit of detection (LOD) and limit of quantification (LOQ) range from 2.54-5.75 × 10-8 M and 0.78-1.74 × 10-7 M, respectively, for these compounds. The mean recovery ranges from 99.3-102.1% with a RSD of 0.14-0.35%. Judging from the molar balance of FMF and the hydrolytic products, uniformity of analytical data during the reactions and linearity of kinetic plot, the method gives accurate results for the assay of FMF and all of its degradation products. It can be conveniently used for the assay of these compounds and for the kinetics and stability studies of FMF.
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Affiliation(s)
- Iqbal Ahmad
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
| | - Tania Mirza
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
| | - Zubair Anwar
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan.
| | - Muhammad Ahsan Ejaz
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
| | - Muhammad Ali Sheraz
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
| | - Sofia Ahmed
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
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15
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Mirza T, Anwar Z, Ejaz MA, Ahmed S, Sheraz MA, Ahmad I. Multicomponent spectrofluorimetric method for the assay of carboxymethylflavin and its hydrolytic products: kinetic applications. LUMINESCENCE 2018; 33:1314-1325. [PMID: 30259653 DOI: 10.1002/bio.3549] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 07/27/2018] [Accepted: 08/14/2018] [Indexed: 11/08/2022]
Abstract
The simultaneous assay of carboxymethylflavin (CMF), an intermediate in the photolysis of riboflavin, and its hydrolytic side-chain cleavage products, lumichrome (LC) (acid solution) and LC and lumiflavin (LF) as well as isoalloxazine ring cleavage products, 1,2-dihydro-1-methyl-2-keto-3-quinoxaline carboxylic acid (KA) and 1,2,3,4-tetrahydro-1-methyl-2,3-dioxo-quinoxaline (DQ) (alkaline solution) has been carried out by a multicomponent spectrofluorimetric method. The method is based on the adjustment of pH of the degraded solutions to 2.0 and extraction of LC and LF with chloroform. The chloroform extract is evaporated to dryness under reduced pressure, the residue dissolved in pH 6.5 citro-phosphate buffer and LC and LF determined at their fluorescence maxima at 478 and 530 nm, respectively. The pH of the aqueous phase is re-adjusted to 6.5 and the solution used for the determination of CMF, KA and DQ at the wavelengths of 530, 443 and 420 nm, respectively. The proposed method has been validated according to ICH guidelines. The calibration curves for CMF and its hydrolytic products are linear in the concentration range of 0.5-5.0 × 10-6 M. The mean recovery ranges from 99.0-102.0% with relative standard deviation (RSD) of 0.19-0.99%. The limit of detection (LOD) and the limit of quantification (LOQ) are in the range of 1.17-1.78 × 10-7 M and 3.55-5.40 × 10-7 M, respectively. The uniformity of molar balance of CMF and degradation products during hydrolytic reactions indicates the accuracy of the proposed method for the spectrofluorimetric assay of the compounds. It has been applied to study the kinetics of hydrolytic reactions of CMF.
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Affiliation(s)
- Tania Mirza
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
| | - Zubair Anwar
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
| | - Muhammad Ahsan Ejaz
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
| | - Sofia Ahmed
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
| | - Muhammad Ali Sheraz
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
| | - Iqbal Ahmad
- Baqai Institute of Pharmaceutical Sciences, Baqai Medical University, Super Highway, Gadap Road, Karachi, Pakistan
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16
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Dinç E, Ertekin ZC, Büker E. Multiway analysis methods applied to the fluorescence excitation-emission dataset for the simultaneous quantification of valsartan and amlodipine in tablets. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 184:255-261. [PMID: 28514719 DOI: 10.1016/j.saa.2017.04.081] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 04/26/2017] [Accepted: 04/29/2017] [Indexed: 06/07/2023]
Abstract
In this study, excitation-emission matrix datasets, which have strong overlapping bands, were processed by using four different chemometric calibration algorithms consisting of parallel factor analysis, Tucker3, three-way partial least squares and unfolded partial least squares for the simultaneous quantitative estimation of valsartan and amlodipine besylate in tablets. In analyses, preliminary separation step was not used before the application of parallel factor analysis Tucker3, three-way partial least squares and unfolded partial least squares approaches for the analysis of the related drug substances in samples. Three-way excitation-emission matrix data array was obtained by concatenating excitation-emission matrices of the calibration set, validation set, and commercial tablet samples. The excitation-emission matrix data array was used to get parallel factor analysis, Tucker3, three-way partial least squares and unfolded partial least squares calibrations and to predict the amounts of valsartan and amlodipine besylate in samples. For all the methods, calibration and prediction of valsartan and amlodipine besylate were performed in the working concentration ranges of 0.25-4.50μg/mL. The validity and the performance of all the proposed methods were checked by using the validation parameters. From the analysis results, it was concluded that the described two-way and three-way algorithmic methods were very useful for the simultaneous quantitative resolution and routine analysis of the related drug substances in marketed samples.
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Affiliation(s)
- Erdal Dinç
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Tandoğan, 06100 Ankara, Turkey.
| | - Zehra Ceren Ertekin
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Tandoğan, 06100 Ankara, Turkey
| | - Eda Büker
- Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, Tandoğan, 06100 Ankara, Turkey
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17
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Ragab MA, Galal SM, Korany MA, Ahmed AR. First derivative emission spectrofluorimetric method for the determination of LCZ696, a newly approved FDA supramolecular complex of valsartan and sacubitril in tablets. LUMINESCENCE 2017; 32:1417-1425. [DOI: 10.1002/bio.3339] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 03/24/2017] [Accepted: 03/29/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Marwa A.A. Ragab
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry; University of Alexandria, El-Messalah; Alexandria Egypt
| | - Shereen M. Galal
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry; University of Alexandria, El-Messalah; Alexandria Egypt
| | - Mohamed A. Korany
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry; University of Alexandria, El-Messalah; Alexandria Egypt
| | - Aya R. Ahmed
- Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry; University of Alexandria, El-Messalah; Alexandria Egypt
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18
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Shaalan RA, Belal TS, El Yazbi FA, Elonsy SM. Validated stability-indicating HPLC-DAD method of analysis for the antihypertensive triple mixture of amlodipine besylate, valsartan and hydrochlorothiazide in their tablets. ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.04.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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19
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Development and Validation of highly Sensitive Stability Indicating Spectrofluorimetric Method for Determination of Amlodipine in Pharmaceutical Preparations and Human Plasma. J Fluoresc 2016; 26:2141-2149. [DOI: 10.1007/s10895-016-1910-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 08/15/2016] [Indexed: 10/21/2022]
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20
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El-Kosasy AM, Tawakkol SM, Ayad MF, Sheta AI. New methods for amlodipine and valsartan native spectrofluorimetric determination, with factors optimization study. Talanta 2015; 143:402-413. [DOI: 10.1016/j.talanta.2015.05.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 05/03/2015] [Accepted: 05/04/2015] [Indexed: 11/24/2022]
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21
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Ibrahim F, El-Enany N, Shalan SH, Abo Shabana RA. Second-derivative synchronous spectrofluorimetric determination of nebivolol hydrochloride and amlodipine besylate in their combined dosage form. LUMINESCENCE 2015; 30:1011-9. [DOI: 10.1002/bio.2852] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 12/21/2014] [Accepted: 12/28/2014] [Indexed: 11/08/2022]
Affiliation(s)
- F. Ibrahim
- Department of Analytical Chemistry; University of Mansoura; 35516 Mansoura Egypt
| | - N. El-Enany
- Department of Analytical Chemistry; University of Mansoura; 35516 Mansoura Egypt
| | - SH Shalan
- Department of Analytical Chemistry; University of Mansoura; 35516 Mansoura Egypt
| | - R. A. Abo Shabana
- Department of Analytical Chemistry; University of Mansoura; 35516 Mansoura Egypt
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22
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Electroanalytical application of a boron-doped diamond electrode: Improving the simultaneous voltammetric determination of amlodipine and valsartan in urine and combined dosage forms. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2014.11.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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23
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Ebeid WM, Elkady EF, El-Zaher AA, El-Bagary RI, Patonay G. Simultaneous Determination of Aliskiren Hemifumarate, Amlodipine Besylate and Hydrochlorothiazide in Spiked Human Plasma Using UPLC-MS/MS. J Chromatogr Sci 2015; 53:1178-84. [DOI: 10.1093/chromsci/bmu213] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Indexed: 11/14/2022]
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24
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Al Lawati HAJ, Al-Nadabi MM, Varma GB, Suliman FEO, Al-Abri H. A lab-on-a-chip device for analysis of amlodipine in biological fluids using peroxyoxalate chemiluminescence system. LUMINESCENCE 2014; 29:1148-53. [DOI: 10.1002/bio.2675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Revised: 02/22/2014] [Accepted: 03/04/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Haider A. J. Al Lawati
- Department of Chemistry, College of Science; Sultan Qaboos University; PO Box 36 Al-Khod 123 Oman
| | | | - Gouri B. Varma
- Department of Chemistry, College of Science; Sultan Qaboos University; PO Box 36 Al-Khod 123 Oman
| | - Fakhr Eldin O. Suliman
- Department of Chemistry, College of Science; Sultan Qaboos University; PO Box 36 Al-Khod 123 Oman
| | - Hasnaa Al-Abri
- Department of Chemistry, College of Science; Sultan Qaboos University; PO Box 36 Al-Khod 123 Oman
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25
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El-Kosasy AM, Tawakkol SM, Ayad MF, Sheta AI. A Novel Potentiometric Detection Strategy for the Determination of Amlodipine Besylate Based on Functionalized Particles. ELECTROANAL 2014. [DOI: 10.1002/elan.201400025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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26
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Ebeid WM, Elkady EF, El-Zaher AA, El-Bagary RI, Patonay G. Steady-state and synchronous spectrofluorimetric methods for simultaneous determination of aliskiren hemifumarate and amlodipine besylate in dosage forms. LUMINESCENCE 2014; 29:878-83. [DOI: 10.1002/bio.2636] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 10/25/2013] [Accepted: 12/16/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Walid M. Ebeid
- Pharmaceutical Chemistry Department, Faculty of Pharmacy; Cairo University; Kasr El-Aini St. Cairo 11562 Egypt
- Department of Chemistry; Georgia State University; P.O. Box 4098 Atlanta Georgia 30302-4098 USA
| | - Ehab F. Elkady
- Pharmaceutical Chemistry Department, Faculty of Pharmacy; Cairo University; Kasr El-Aini St. Cairo 11562 Egypt
| | - Asmaa A. El-Zaher
- Pharmaceutical Chemistry Department, Faculty of Pharmacy; Cairo University; Kasr El-Aini St. Cairo 11562 Egypt
| | - Ramzia I. El-Bagary
- Pharmaceutical Chemistry Department, Faculty of Pharmacy; Cairo University; Kasr El-Aini St. Cairo 11562 Egypt
| | - Gabor Patonay
- Department of Chemistry; Georgia State University; P.O. Box 4098 Atlanta Georgia 30302-4098 USA
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27
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Salim MM, Ebeid WM, El-Enany N, Belal F, Walash M, Patonay G. Simultaneous determination of aliskiren hemifumarate, amlodipine besylate, and hydrochlorothiazide in their triple mixture dosage form by capillary zone electrophoresis. J Sep Sci 2014; 37:1206-13. [DOI: 10.1002/jssc.201301140] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Revised: 02/15/2014] [Accepted: 02/19/2014] [Indexed: 01/25/2023]
Affiliation(s)
- Mohamed M. Salim
- Department of Chemistry; Georgia State University; Atlanta GA USA
- Department of Analytical Chemistry; Faculty of Pharmacy; University of Mansoura; Mansoura Egypt
| | - Walid M. Ebeid
- Department of Chemistry; Georgia State University; Atlanta GA USA
- Pharmaceutical Chemistry Department; Faculty of Pharmacy; Cairo University; Cairo Egypt
| | - Nahed El-Enany
- Department of Analytical Chemistry; Faculty of Pharmacy; University of Mansoura; Mansoura Egypt
| | - Fathalla Belal
- Department of Analytical Chemistry; Faculty of Pharmacy; University of Mansoura; Mansoura Egypt
| | - Mohamed Walash
- Department of Analytical Chemistry; Faculty of Pharmacy; University of Mansoura; Mansoura Egypt
| | - Gabor Patonay
- Department of Chemistry; Georgia State University; Atlanta GA USA
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28
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Belal TS, Mahrous MS, Abdel-Khalek MM, Daabees HG, Khamis MM. Validated spectrofluorimetric determination of two pharmaceutical antihypertensive mixtures containing amlodipine besylate together with either candesartan cilexetil or telmisartan. LUMINESCENCE 2014; 29:893-900. [DOI: 10.1002/bio.2638] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Revised: 12/13/2013] [Accepted: 01/02/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Tarek S. Belal
- Department of Pharmaceutical Analytical Chemistry; University of Alexandria; Alexandria Egypt
| | - Mohamed S. Mahrous
- Department of Pharmaceutical Chemistry; University of Alexandria; Alexandria Egypt
| | | | - Hoda G. Daabees
- Department of Pharmaceutical Chemistry; Damanhour University; Damanhour Egypt
| | - Mona M. Khamis
- Department of Pharmaceutical Chemistry; University of Alexandria; Alexandria Egypt
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29
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El-Bagary RI, Patonay G, Elzahr AA, Elkady EF, Ebeid WA. Ion-Pair LC Method for Simultaneous Determination of Aliskiren Hemifumarate, Amlodipine Besylate and Hydrochlorothiazide in Pharmaceuticals. Chromatographia 2013. [DOI: 10.1007/s10337-013-2592-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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30
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Ozdemir FA, Akyuz A. Simultaneous Determination of Amlodipine and Aliskren in Tablets by High-Performance Liquid Chromatography. J Chromatogr Sci 2013; 52:685-90. [DOI: 10.1093/chromsci/bmt099] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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31
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Amin OAR, Bamane FH, Hanafy A. SIMULTANEOUS DETERMINATION AND PHARMACOKINETIC STUDY OF AMLODIPINE AND VALSARTAN IN RAT PLASMA USING ION-PAIR HPLC WITH FLUORESCENCE DETECTION. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.717060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
| | - Fayda H. Bamane
- b Department of Biochemistry , King Abdulaziz University , Saudi Arabia
| | - Abeer Hanafy
- c Department of Pharmacology , King Abdulaziz University , Saudi Arabia
- d Department of Pharmacology , Kafrelsheikh University , Egypt
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32
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Gizawy SM, Bebawy LI, Abdelmageed OH, Omar MA, Deryea SM, Abdel-Megied AM. HIGH PERFORMANCE LIQUID CHROMATOGRAPHY, TLC-DENSITOMETRY, AND FIRST-DERIVATIVE SPECTROPHOTOMETRY FOR SIMULTANEOUS DETERMINATION OF AMLODIPINE AND PERINDOPRIL IN BULK POWDER AND ITS TABLETS. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.686141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Samia M. Gizawy
- a Pharmaceutical Analytical Chemistry Department , Faculty of Pharmacy, Assuit University , Assuit , Egypt
| | - Loris I. Bebawy
- b National Organization for Drug Control and Research, Ben-El-Saraiat , Dokki , Gizza , Egypt
| | - Osama H. Abdelmageed
- c Pharmaceutical Chemistry Department , Faculty of Pharmacy, King Abdulaziz University , Jeddah , Kingdom of Saudi Arabia
| | - Mahmoud A. Omar
- d Analytical Chemistry Department , Faculty of Pharmacy, Minia University , Minia , Egypt
| | - Sayed M. Deryea
- d Analytical Chemistry Department , Faculty of Pharmacy, Minia University , Minia , Egypt
| | - Ahmed M. Abdel-Megied
- e Analytical Chemistry Department , Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), 6th October City , Egypt
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33
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Inglot T, Gumieniczek A, Mączka P, Rutkowska E. New HPLC Method with Experimental Design and Fluorescence Detection for Analytical Study of Antihypertensive Mixture, Amlodipine and Valsartan. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ajac.2013.41003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Kadioglu Y, Ozturk M. Spectrofluorimetric determination of amlodipine in human plasma without derivatization. BRAZ J PHARM SCI 2012. [DOI: 10.1590/s1984-82502012000400016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A rapid and sensitive spectrofluorimetric method was developed for the determination of amlodipine (AD), a calcium channel blocker, in the plasma. The type of solvent, the wavelength range, and the range of AD concentration were selected to optimize the experimental conditions. The calibration curves were linear (r² >0.997) in the concentration range of 0.1-12.5 ppm of AD. The limit of quantitation and limit of detection values for the method for plasma samples were 0.1 ppm and 0.07 ppm, respectively. The precision calculated as the relative standard deviation was less than 3.5%, and the accuracy (relative error) was better than 5.5% (n=6). The method developed in this study can be directly and easily applied for the determination of AD in the plasma without derivatization in plasma.
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35
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Sikkander ARM, Vedhi C, Manisankar P. Electrochemical determination of calcium channel blocker drugs using multiwall carbon nanotube-modified glassy carbon electrode. INTERNATIONAL JOURNAL OF INDUSTRIAL CHEMISTRY 2012. [DOI: 10.1186/2228-5547-3-29] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Abstract
Background
Calcium channel blockers belonging to the dihydropyridine family have been used as a potent arterial vasodilator in the management of angina and cardiovascular diseases. In the design of glassy carbon electrode coatings for the study of the same, multiwall carbon nanotubes (MWCNT) are favored. They are known for the reduction and oxidation of electroactive species towards cathodic and anodic direction with the simultaneous enhancement of the peak current.
Results
The MWCNT-modified glassy carbon electrode exhibited a sharp anodic peak potential at around at 0.5 V for amlodipine (AMLD) andnimodipine (NIMD), and 0.4 V for felodipine (FELD) in the cyclic voltammograms. The antihypertensive drugs were determined using a simple two-step procedure developed which comprised a preconcentration step followed by the differential pulse stripping voltammetric quantification. Concentration calibrations were linear within the range from 0.01 to 0.3 μg/mL for AMLD and FELD, and 0.025 to 0.3 μg/mL for NIMD.
Conclusion
The lower limit detection (LOD) was found to be very low on modified electrode. The LOD is 0.005 μg/mL for AMLD and FELD, and 0.01 μg/mL for NIMD. The prepared electrode showed an excellent electrocatalytic activity towards the oxidation of antihypertensive drugs leading to a remarked improvement in sensitivity. An electrochemical sensor featuring the MWCNT-modified electrode was applied successfully as the result for the calcium channel blocker determination in pharmaceutical samples.
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36
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Multivariate Versus Classical Univariate Calibration Methods for Spectrofluorimetric Data: Application to Simultaneous Determination of Olmesartan Medoxamil and Amlodipine Besylate in their Combined Dosage Form. J Fluoresc 2012; 23:79-91. [DOI: 10.1007/s10895-012-1119-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Accepted: 08/03/2012] [Indexed: 10/28/2022]
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37
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El-Shaboury SR, Hussein SA, Mohamed NA, El-Sutohy MM. Spectrofluorimetric method for determination of some angiotensin II receptor antagonists. J Pharm Anal 2012; 2:12-18. [PMID: 29403715 PMCID: PMC5760827 DOI: 10.1016/j.jpha.2011.10.005] [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: 08/04/2011] [Accepted: 10/24/2011] [Indexed: 10/28/2022] Open
Abstract
A simple, rapid, accurate and highly sensitive spectrofluorimetric method has been developed for determination of some angiotensin II receptor antagonists (AIIRA's), namely Losartan potassium (Los-K), Irbesartan (Irb), Valsartan (Val) and Candesartan cilexetil (Cand) in pure forms as well as in their pharmaceutical dosage forms. All the variables affecting the relative fluorescence intensity (RFI) were studied and optimized. Under the optimum conditions, linear relationships with good correlation coefficients (0.9982-0.9991) were obtained over the concentration range from 0.006 μg/mL to 1.7 μg/mL. Good accuracy and precision were successfully obtained for the analysis of tablets containing each drug alone or combined with hydrochlorothiazide (HCTZ) without interferences from the co-formulated HCTZ or the additives commonly present in tablets.
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Affiliation(s)
- Salwa R. El-Shaboury
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Samiha A. Hussein
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Niveen A. Mohamed
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Assiut University, Assiut 71526, Egypt
| | - Mohamed M. El-Sutohy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Al-Azhar University, Assiut branch, Assiut 71524, Egypt
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38
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Shaalan RA, Belal TS. GRADIENT HPLC-DAD DETERMINATION OF THE ANTIHYPERTENSIVE MIXTURE OF AMLODIPINE BESYLATE, VALSARTAN, AND HYDROCHLOROTHIAZIDE IN COMBINED PHARMACEUTICAL TABLETS. J LIQ CHROMATOGR R T 2012. [DOI: 10.1080/10826076.2011.597071] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Rasha A. Shaalan
- a Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy , University of Alexandria , Elmessalah , Alexandria , Egypt
| | - Tarek S. Belal
- a Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy , University of Alexandria , Elmessalah , Alexandria , Egypt
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39
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El-Gizawy SM, Abdelmageed OH, Omar MA, Deryea SM, Abdel-Megied AM. Development and Validation of HPLC Method for Simultaneous Determination of Amlodipine, Valsartan, Hydrochlorothiazide in Dosage Form and Spiked Human Plasma. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ajac.2012.36055] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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Khalil NY, Wani TA, Abunassif MA, Darwish IA. SENSITIVE HPLC METHOD WITH FLUORESCENCE DETECTION AND ON-LINE WAVELENGTH SWITCHING FOR SIMULTANEOUS DETERMINATION OF VALSARTAN AND AMLODIPINE IN HUMAN PLASMA. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.593069] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nasr Y. Khalil
- a Department of Pharmaceutical Chemistry , College of Pharmacy, King Saud University , Riyadh , Saudi Arabia
| | - Tanveer A. Wani
- a Department of Pharmaceutical Chemistry , College of Pharmacy, King Saud University , Riyadh , Saudi Arabia
| | - Mohamed A. Abunassif
- a Department of Pharmaceutical Chemistry , College of Pharmacy, King Saud University , Riyadh , Saudi Arabia
| | - Ibrahim A. Darwish
- a Department of Pharmaceutical Chemistry , College of Pharmacy, King Saud University , Riyadh , Saudi Arabia
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41
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Vignaduzzo SE, Castellano PM, Kaufman TS. DEVELOPMENT AND VALIDATION OF AN HPLC METHOD FOR THE SIMULTANEOUS DETERMINATION OF AMLODIPINE, HYDROCHLOROTHIAZIDE, AND VALSARTAN IN TABLETS OF THEIR NOVEL TRIPLE COMBINATION AND BINARY PHARMACEUTICAL ASSOCIATIONS. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.591020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Silvana E. Vignaduzzo
- a Pharmaceutical Analysis, Institute of Chemistry of Rosario and School of Biochemical and Pharmaceutical Sciences, National University of Rosario , Rosario, Argentina
| | - Patricia M. Castellano
- a Pharmaceutical Analysis, Institute of Chemistry of Rosario and School of Biochemical and Pharmaceutical Sciences, National University of Rosario , Rosario, Argentina
| | - Teodoro S. Kaufman
- a Pharmaceutical Analysis, Institute of Chemistry of Rosario and School of Biochemical and Pharmaceutical Sciences, National University of Rosario , Rosario, Argentina
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