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Feng CH, Chang YM, Weng JR. Rapid methylation of valsartan in human plasma using evaporative derivatization reagent to improve its sensitivity in MALDI-TOF mass spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:3694-3701. [PMID: 36102878 DOI: 10.1039/d2ay01164f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) is a rapid and low-solvent-consumption technique. However, almost every mass in the low mass-to-charge-ratio region of the mass spectrum appears as strongly fluctuating matrix background signals. Thus, it is difficult to identify small molecules using this technique. In this study, we used methanol to methylate valsartan, an angiotensin II receptor blocker that is commonly used to treat high blood pressure and heart failure. The methylation derivatization of valsartan enhanced the detection sensitivity and transformed the detection m/z ratio. The liquid-phase microextraction of valsartan in human plasma (20 μL) was achieved by acidifying valsartan with HCl aqueous solution and extracting it with toluene. An acetyl chloride/anhydrous methanol mixture was added for methylation derivatization, which was completed within 30 min at 30 °C. Finally, the residue was re-dissolved in irbesartan methanolic solution, which together with the matrix 2-mercaptobenzothiazole was spotted on an AnchorChip target plate for MALDI-TOF MS analysis. Liquid-phase microextraction was performed and the methylation-derivatization parameters were investigated. The valsartan calibration range was 0.2-10 μg mL-1 with good linearity in human plasma. In the within- and between-run analyses, the relative standard deviation and relative error were both <11.32%. This method was successfully applied to determine the valsartan concentration in the plasma of 10 patients with hypertension.
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Affiliation(s)
- Chia-Hsien Feng
- Department of Fragrance and Cosmetic Science, College of Pharmacy, Kaohsiung Medical University, 100, Shih-Chuan 1st Road, Kaohsiung 80708, Taiwan.
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Master Degree Program in Toxicology, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Yung-Ming Chang
- Division of Cardiovascular Medicine, Department of Internal Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Jing-Ru Weng
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
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2
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Bandopadhyay S, Beg S, Katare OP, Sharma T, Singh B. Integrated Analytical Quality by Design (AQbD) Approach for the Development and Validation of Bioanalytical Liquid Chromatography Method for Estimation of Valsartan. J Chromatogr Sci 2020; 58:606-621. [DOI: 10.1093/chromsci/bmaa024] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 05/15/2019] [Indexed: 11/12/2022]
Abstract
Abstract
The present studies describe the systematic development and validation of a simple, rapid, sensitive and cost-effective reversed-phase high-performance liquid chromatographic bioanalytical method for the estimation of valsartan in rat plasma employing analytical quality by design (AQbD) principles quality risk management was applied for identifying the critical method parameters (CMPs) and subsequently method optimization was performed employing Box–Behnken design by selecting mobile phase pH, flow rate and % organic modifier as the CMPs and evaluated for critical analytical attributes (CAAs) such as peak area, retention time, peak tailing and number of theoretical plates. The developed method was then transferred to bioanalysis, where liquid–liquid extraction process was used for separating the drug from rat plasma. The optimization of extraction process was performed with the help of face-centered cubic design by selecting centrifugation speed and centrifugation time as the CMPs for maximizing % recovery, signal-to-noise ratio and purity threshold of the drug peak after extraction as the CAAs. Optimum chromatographic solution was chosen by mathematical and graphical search techniques, and design space was demarcated. Validation studies performed for the developed method indicated linearity ranging between 5 and 100 ng.mL−1, whereas accuracy and precision study showed good percent recovery (99–102%) along with % relative standard deviation within ±2%. Sensitivity evaluation revealed limit of detection and limit of quantification were found to be 0.76 ng.mL−1 and 2.29 ng.mL−1, respectively. In a nutshell, the present work demonstrates significant merits of AQbD approach for holistic process understanding and analytical method development and validation with enhanced robustness and performance.
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Affiliation(s)
- Shantanu Bandopadhyay
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Sector 14, Chandigarh 160014, India
| | - Sarwar Beg
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard (Hamdard University), Hamdard Nagar, New Delhi 110062, India
| | - O P Katare
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Sector 14, Chandigarh 160014, India
| | - Teenu Sharma
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Sector 14, Chandigarh 160014, India
| | - Bhupinder Singh
- University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies, Panjab University, Sector 14, Chandigarh 160014, India
- UGC Centre of Excellence in Nano Applications (Biomedical Sciences), Panjab University, Sector 14, Chandigarh 160014, India
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3
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Marghany KA, Abdelsalam RA, Haddad GM. HPLC method transfer study for simultaneous determination of seven angiotensin II receptor blockers. J Sep Sci 2020; 43:1398-1405. [PMID: 31991050 DOI: 10.1002/jssc.201900534] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 12/29/2019] [Accepted: 01/22/2020] [Indexed: 01/09/2023]
Abstract
In this study, a sensitive high-performance liquid chromatography method was developed and validated for the simultaneous determination of seven angiotensin II receptor blockers, namely, hydrochlorothiazide, chlorthalidone, eprosartan mesylate, valsartan, losartan potassium, irbesartan, and candesartan cilexetil. Different chromatographic parameters were tested and fully optimized. Best chromatographic separation was accomplished on a reversed-phase octadecylsilyl column (250 × 4.6 mm id; 5 μm) under gradient elution using methanol/sodium phosphate monobasic buffer (0.01 M, pH 6.5) as mobile phase. The detection of target analytes was obtained at 254 nm. The pH of the buffer has been selected according to Marvin® sketch software. The proposed method was validated according to ICH guidelines and showed good precision (relative standard deviation < 1), good linearity (square of correlation coefficient ≥ 0.999), and high accuracy (between 98 and 102%) with detection limit and quantitation limit (40 and 160 ng/mL, respectively) for all the detected analytes.
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Affiliation(s)
- Khaled A Marghany
- Ministry of Health, Directorate of Health Affairs, Ismailia Health Administration, Ismailia, Egypt
| | - Randa A Abdelsalam
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
| | - Ghada M Haddad
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt
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Azadi A, Ahmadi S. Simultaneous magnetic dispersive micro solid phase extraction of valsartan and atorvastatin using a CMC-coated Fe3O4 nanocomposite prior to HPLC-UV detection: multivariate optimization. NEW J CHEM 2019. [DOI: 10.1039/c9nj03599k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, a sensitive, rapid, accurate and practical procedure is established for determination of atorvastatin and valsartan from human biological fluids by dispersive micro solid phase extraction (D-μ-SPE) combined with HPLC-UV detector.
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Affiliation(s)
- Ali Azadi
- Department of Chemistry
- Kermanshah Branch
- Islamic Azad University
- Kermanshah
- Iran
| | - Shahin Ahmadi
- Department of Chemistry
- Kermanshah Branch
- Islamic Azad University
- Kermanshah
- Iran
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5
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Sahu PK, Ramisetti NR, Cecchi T, Swain S, Patro CS, Panda J. An overview of experimental designs in HPLC method development and validation. J Pharm Biomed Anal 2017; 147:590-611. [PMID: 28579052 DOI: 10.1016/j.jpba.2017.05.006] [Citation(s) in RCA: 158] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 05/01/2017] [Accepted: 05/04/2017] [Indexed: 01/25/2023]
Abstract
Chemometric approaches have been increasingly viewed as precious complements to high performance liquid chromatographic practices, since a large number of variables can be simultaneously controlled to achieve the desired separations. Moreover, their applications may efficiently identify and optimize the significant factors to accomplish competent results through limited experimental trials. The present manuscript discusses usefulness of various chemometric approaches in high and ultra performance liquid chromatography for (i) methods development from dissolution studies and sample preparation to detection, considering the progressive substitution of traditional detectors with tandem mass spectrometry instruments and the importance of stability indicating assays (ii) method validation through screening and optimization designs. Choice of appropriate types of experimental designs so as to either screen the most influential factors or optimize the selected factors' combination and the mathematical models in chemometry have been briefly recalled and the advantages of chemometric approaches have been emphasized. The evolution of the design of experiments to the Quality by Design paradigm for method development has been reviewed and the Six Sigma practice as a quality indicator in chromatography has been explained. Chemometric applications and various strategies in chromatographic separations have been described.
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Affiliation(s)
- Prafulla Kumar Sahu
- Department of Pharmaceutical Analysis and Quality Assurance, Raghu College of Pharmacy, Dakamarri, Bheemunipatnam Mandal, Visakhapatnam, 531162, Andhra Pradesh, India
| | - Nageswara Rao Ramisetti
- Analytical Chemistry Division, CSIR-Indian Institute of Chemical Technology (IICT), Tarnaka, Hyderabad, 500007, Telangana, India.
| | - Teresa Cecchi
- Chemistry Department, ITT MONTANI, Via Montani 7, 63900, Fermo, FM, Italy.
| | - Suryakanta Swain
- Department of Pharmaceutics, SIMS College of Pharmacy, Mangaladas Nagar, Vijayawada Road, Guntur, 522 001, Andhra Pradesh, India
| | - Chandra Sekhar Patro
- Department of Pharmaceutical Analysis and Quality Assurance, Raghu College of Pharmacy, Dakamarri, Bheemunipatnam Mandal, Visakhapatnam, 531162, Andhra Pradesh, India
| | - Jagadeesh Panda
- Department of Pharmaceutical Analysis and Quality Assurance, Raghu College of Pharmacy, Dakamarri, Bheemunipatnam Mandal, Visakhapatnam, 531162, Andhra Pradesh, India
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Pebdani AA, Shabani AMH, Dadfarnia S, Talebianpoor MS, Khodadoust S. Preconcentration of valsartan by dispersive liquid-liquid microextraction based on solidification of floating organic drop and its determination in urine sample: Central composite design. J Sep Sci 2016; 39:1935-44. [DOI: 10.1002/jssc.201600010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 03/11/2016] [Accepted: 03/11/2016] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | | | - Saeid Khodadoust
- Department of Chemistry; Khatam Alanbia University of Technology; Behbahan Iran
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7
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Development and Validation of HPLC Method for the Simultaneous Determination of Five Food Additives and Caffeine in Soft Drinks. Int J Anal Chem 2016; 2016:2879406. [PMID: 26989415 PMCID: PMC4773534 DOI: 10.1155/2016/2879406] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 01/19/2016] [Accepted: 01/20/2016] [Indexed: 11/18/2022] Open
Abstract
Box-Behnken design was applied to optimize high performance liquid chromatography (HPLC) conditions for the simultaneous determination of potassium sorbate, sodium benzoate, carmoisine, allura red, ponceau 4R, and caffeine in commercial soft drinks. The experimental variables chosen were pH (6.0–7.0), flow rate (1.0–1.4 mL/min), and mobile phase ratio (85–95% acetate buffer). Resolution values of all peak pairs were used as a response. Stationary phase was Inertsil OctaDecylSilane- (ODS-) 3V reverse phase column (250 × 4.6 mm, 5 μm) dimensions. The detection was performed at 230 nm. Optimal values were found 6.0 pH, 1.0 mL/min flow rate, and 95% mobile phase ratio for the method which was validated by calculating the linearity (r2 > 0.9962), accuracy (recoveries ≥ 95.75%), precision (intraday variation ≤ 1.923%, interday variation ≤ 1.950%), limits of detection (LODs), and limits of quantification (LOQs) parameters. LODs and LOQs for analytes were in the range of 0.10–0.19 μg/mL and 0.33–0.63 μg/mL, respectively. The proposed method was applied successfully for the simultaneous determination of the mixtures of five food additives and caffeine in soft drinks.
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Abstract
Valsartan is an antihypertensive drug which selectively inhibits angiotensin receptor type II. Generally, valsartan is available as film-coated tablets. This review summarizes thermal analysis, spectroscopy characteristics (UV, IR, MS, and NMR), polymorphism forms, impurities, and related compounds of valsartan. The methods of analysis of valsartan in pharmaceutical dosage forms and in biological fluids using spectrophotometer, CE, TLC, and HPLC methods are discussed in details. Both official and nonofficial methods are described. It is recommended to use LC-MS method for analyzing valsartan in complex matrices such as biological fluids and herbal preparations; in this case, MRM is preferred than SIM method.
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Affiliation(s)
- Febry Ardiana
- Research & Development, Bernofarm Pharmaceutical Company, Buduran-Sidoarjo, Indonesia
| | - Gunawan Indrayanto
- Faculty of Pharmacy, Airlangga University, Dharmawangsa Dalam, Surabaya, Indonesia.
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Sharif K, Rahman M, Azmir J, Mohamed A, Jahurul M, Sahena F, Zaidul I. Experimental design of supercritical fluid extraction – A review. J FOOD ENG 2014. [DOI: 10.1016/j.jfoodeng.2013.10.003] [Citation(s) in RCA: 206] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Baranowska I, Magiera S, Baranowski J. Clinical applications of fast liquid chromatography: a review on the analysis of cardiovascular drugs and their metabolites. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 927:54-79. [PMID: 23462623 DOI: 10.1016/j.jchromb.2013.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Revised: 01/29/2013] [Accepted: 02/01/2013] [Indexed: 01/16/2023]
Abstract
One of the major challenges facing the medicine today is developing new therapies that enhance human health. To help address these challenges the utilization of analytical technologies and high-throughput automated platforms has been employed; in order to perform more experiments in a shorter time frame with increased data quality. In the last decade various analytical strategies have been established to enhance separation speed and efficiency in liquid chromatography applications. Liquid chromatography is an increasingly important tool for monitoring drugs and their metabolites. Furthermore, liquid chromatography has played an important role in pharmacokinetics and metabolism studies at these drug development stages since its introduction. This paper provides an overview of current trends in fast chromatography for the analysis of cardiovascular drugs and their metabolites in clinical applications. Current trends in fast liquid chromatographic separations involve monolith technologies, fused-core columns, high-temperature liquid chromatography (HTLC) and ultra-high performance liquid chromatography (UHPLC). The high specificity in combination with high sensitivity makes it an attractive complementary method to traditional methodology used for routine applications. The practical aspects of, recent developments in and the present status of fast chromatography for the analysis of biological fluids for therapeutic drug and metabolite monitoring, pharmacokinetic studies and bioequivalence studies are presented.
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Affiliation(s)
- Irena Baranowska
- Department of Analytical Chemistry, Silesian University of Technology, 7M. Strzody Str., 44-100 Gliwice, Poland.
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12
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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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13
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Shaalan RA, Belal TS. Simultaneous spectrofluorimetric determination of amlodipine besylate and valsartan in their combined tablets. Drug Test Anal 2011; 2:489-93. [PMID: 20872895 DOI: 10.1002/dta.160] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Amlodipine, a dihydropyridine calcium channel blocker, and valsartan, an angiotensin II receptor blocker, are co-formulated in a single-dose combination for the treatment of hypertension. The combination is used by patients whose blood pressure is not adequately controlled on either component monotherapy. This work describes a simple, sensitive, and reliable spectrofluorimetric method for the simultaneous determination of the two antihypertensive drugs; amlodipine besylate (AML) and valsartan (VAL) in their combined tablets. The method involved measurement of the native fluorescence at 455 nm (λ(Ex) 360 nm) and 378 nm (λ(Ex) 245 nm) for AML and VAL, respectively. Analytical performance of the proposed spectrofluorimetric procedure was statistically validated with respect to linearity, ranges, precision, accuracy, selectivity, robustness, detection, and quantification limits. Regression analysis showed good correlation between fluorescence intensity and concentration over the concentration ranges 0.2-3.6 and 0.008-0.080 µg mL⁻¹ for AML and VAL, respectively. The limits of detection were 0.025 and 0.0012 µg mL⁻¹ for AML and VAL, respectively. The proposed method was successfully applied for the assay of the two drugs in their combined pharmaceutical tablets with recoveries not less than 98.85%. No interference was observed from common pharmaceutical additives. The results were favourably compared with those obtained by a reference spectrophotometric method.
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Affiliation(s)
- Rasha A Shaalan
- Pharmaceutical Analytical Chemistry Department, University of Alexandria, Egypt
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14
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Gonzalez O, Iriarte G, Ferreirós N, Maguregui MI, Alonso RM, Jiménez RM. Optimization and validation of a SPE-HPLC-PDA-fluorescence method for the simultaneous determination of drugs used in combined cardiovascular therapy in human plasma. J Pharm Biomed Anal 2009; 50:630-9. [DOI: 10.1016/j.jpba.2008.10.037] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2008] [Revised: 10/10/2008] [Accepted: 10/15/2008] [Indexed: 11/25/2022]
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15
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Analysis of angiotensin II receptor antagonist and protein markers at microliter level plasma by LC–MS/MS. J Pharm Biomed Anal 2009; 49:123-8. [DOI: 10.1016/j.jpba.2008.09.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2008] [Revised: 09/27/2008] [Accepted: 09/30/2008] [Indexed: 11/20/2022]
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16
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Gheshlaghi R, Scharer J, Moo-Young M, Douglas P. Application of statistical design for the optimization of amino acid separation by reverse-phase HPLC. Anal Biochem 2008; 383:93-102. [DOI: 10.1016/j.ab.2008.07.032] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Revised: 07/28/2008] [Accepted: 07/29/2008] [Indexed: 10/21/2022]
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17
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Liu F, Zhang J, Xu Y, Gao S, Guo Q. Simultaneous Determination of Hydrochlorothiazide and Valsartan in Human Plasma by Liquid Chromatography/Tandem Mass Spectrometry. ANAL LETT 2008. [DOI: 10.1080/00032710802119186] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Deng YH, Zhang HS, Du XL, Wang H. Quantification of biogenic amines in human plasma based on the derivatization withN-hydroxy-succinimidyl fluorescein-O-acetate by high-performance liquid chromatography. J Sep Sci 2008; 31:990-8. [DOI: 10.1002/jssc.200700399] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Iriarte G, Ferreirós N, Ibarrondo I, Alonso RM, Itxaso Maguregui M, Jiménez RM. Biovalidation of an SPE-HPLC-UV-fluorescence method for the determination of Valsartan and its metabolite valeryl-4-hydroxy-valsartan in human plasma. J Sep Sci 2007; 30:2231-40. [PMID: 17694512 DOI: 10.1002/jssc.200700033] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A simple and fast method for the simultaneous determination of the antihypertensive drug Valsartan and its metabolite in human plasma has been validated. The proposed method deals with SPE, followed by an HPLC separation coupled with fluorimetric and photometric detection. The optimization of the SPE-HPLC method was achieved by an experimental design. The separation was performed on an RP C18 Atlantis 100 mmx3.9 mm column. The mobile phase consisted of a mixture of ACN 0.025% TFA and phosphate buffer (5 mM, pH = 2.5) 0.025% TFA and was delivered in gradient mode at a flow rate of 1.30 mL/min. The eluent was monitored with a fluorescence detector at 234 and 378 nm excitation and emission wavelengths, respectively, and at 254 nm using a photometric detector. The full analytical validation was performed according to the Food and Drug Administration (FDA) 'guidance for industry: bioanalytical method validation' and the recoveries obtained for Valsartan and its metabolite ranged from 94.6 to 108.8%. The validated method was successfully applied to 12 plasma samples obtained from patients under antihypertensive treatment with Valsartan.
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Affiliation(s)
- Gorka Iriarte
- Kimika Analitikoaren Saila, Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea/UPV, Bilbo, Basque Country, Spain
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Ferreira SLC, Bruns RE, da Silva EGP, Dos Santos WNL, Quintella CM, David JM, de Andrade JB, Breitkreitz MC, Jardim ICSF, Neto BB. Statistical designs and response surface techniques for the optimization of chromatographic systems. J Chromatogr A 2007; 1158:2-14. [PMID: 17416377 DOI: 10.1016/j.chroma.2007.03.051] [Citation(s) in RCA: 340] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2007] [Revised: 03/08/2007] [Accepted: 03/13/2007] [Indexed: 12/01/2022]
Abstract
This paper describes fundamentals and applications of multivariate statistical techniques for the optimization of chromatographic systems. The surface response methodologies: central composite design, Doehlert matrix and Box-Behnken design are discussed and applications of these techniques for optimization of sample preparation steps (extractions) and determination of experimental conditions for chromatographic separations are presented. The use of mixture design for optimization of mobile phases is also related. An optimization example involving a real separation process is exhaustively described. A discussion about model validation is presented. Some applications of other multivariate techniques for optimization of chromatographic methods are also summarized.
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Affiliation(s)
- Sergio Luis Costa Ferreira
- Universidade Federal da Bahia, Instituto de Química, Campus Universitário de Ondina, Salvador, Bahia 40170-290, Brazil.
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