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Spectrophotometric determination of nifedipine in pharmaceutical formulations, serum and urine samples via oxidative coupling reaction. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2012.04.025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Kuminek G, Tagliari MP, Granada A, Bertol CD, Langassner SZ, Silva MAS, Stulzer HK. DEVELOPMENT AND VALIDATION OF A RAPID AND SIMPLE STABILITY-INDICATING LC METHOD FOR NIFEDIPINE. J LIQ CHROMATOGR R T 2010. [DOI: 10.1080/10826076.2010.518936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Gislaine Kuminek
- a Laboratório de Controle de Qualidade, Departamento de Ciências Farmacêuticas , Universidade Federal de Santa Catarina , Florianópolis, Brazil
| | - Monika Piazzon Tagliari
- a Laboratório de Controle de Qualidade, Departamento de Ciências Farmacêuticas , Universidade Federal de Santa Catarina , Florianópolis, Brazil
| | - Andrea Granada
- a Laboratório de Controle de Qualidade, Departamento de Ciências Farmacêuticas , Universidade Federal de Santa Catarina , Florianópolis, Brazil
| | - Charise Dalazen Bertol
- a Laboratório de Controle de Qualidade, Departamento de Ciências Farmacêuticas , Universidade Federal de Santa Catarina , Florianópolis, Brazil
| | - Silvana Zucolotto Langassner
- b Laboratório de Química Farmacêutica, Departamento de Ciências Farmacêuticas , Universidade Federal de Santa Catarina, Campus Universitário Trindade , Florianópolis, Brazil
| | - Marcos Antonio Segatto Silva
- a Laboratório de Controle de Qualidade, Departamento de Ciências Farmacêuticas , Universidade Federal de Santa Catarina , Florianópolis, Brazil
| | - Hellen Karine Stulzer
- a Laboratório de Controle de Qualidade, Departamento de Ciências Farmacêuticas , Universidade Federal de Santa Catarina , Florianópolis, Brazil
- c Laboratório de Controle de Qualidade, Departamento de Ciências Farmacêuticas , Universidade Estadual de Ponta Grossa , Ponta Grossa, Brazil
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Wang XD, Li JL, Lu Y, Chen X, Huang M, Chowbay B, Zhou SF. Rapid and simultaneous determination of nifedipine and dehydronifedipine in human plasma by liquid chromatography-tandem mass spectrometry: Application to a clinical herb-drug interaction study. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 852:534-44. [PMID: 17339138 DOI: 10.1016/j.jchromb.2007.02.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2006] [Revised: 02/01/2007] [Accepted: 02/09/2007] [Indexed: 01/03/2023]
Abstract
Nifedipine (NIF), a calcium channel antagonist, is metabolized primarily by cytochrome P450 (CYP3A4) to dehydronifedipine (DNIF). As such, NIF is often used as a probe drug for determining CYP3A4 activity in human studies. A rapid and sensitive liquid chromatography/tandem mass spectrometry (LC/MS/MS) method was developed and validated to simultaneously determine NIF and DNIF in human plasma using nitrendipine as the internal standard (IS). After extraction of the plasma samples by ether-n-hexane (3:1, v/v), NIF, DNIF and the IS were subjected to LC/MS/MS analysis using electro-spray ionization (ESI). Chromatographic separation was performed on a Hypersil BDS C(18) column (50 mm x 2.1 mm, i.d., 3 microm). The method had a chromatographic running time of approximately 2.5 min and linear calibration curves over the concentrations of 0.5-100 ng/mL for NIF and DNIF. The recoveries of the one-step liquid extraction method were 81.3-89.1% for NIF and 71.6-80.4% for DNIF. The lower limit of quantification (LLOQ) of the analytical method was 0.5 ng/mL for both analytes. The intra- and inter-day precision was less than 15% for all quality control samples at concentrations of 2, 10, and 50 ng/mL. The validated LC/MS/MS method has been successfully used to study pharmacokinetic interactions of NIF with the herbal antidepressant St. John's wort in healthy volunteers. These results indicated that the developed LC/MS/MS method was efficient with a significantly shorter running time (2.5 min) for NIF and DNIF compared to those methods previously reported in the literature. The presented LC/MS/MS method had acceptable accuracy, precision and sensitivity and was used in a clinical pharmacokinetic interaction study of NIF with St. John's wort, a known herbal inducer of CYP3A4. St. John's wort was shown to induce NIF metabolism with increased plasma concentrations of DNIF.
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Affiliation(s)
- Xue-Ding Wang
- Institute of Clinical Pharmacology, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
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Shahriyar SM, Lau-Cam CA. A SIMPLE HPLC METHOD WITH SPECTROPHOTOMETRIC DETECTION FOR THE SIMULTANEOUS ASSAY OF NIFEDIPINE AND VERAPAMIL IN RAT PLASMA. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-100100412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- S. M. Shahriyar
- a College of Pharmacy and Allied Health Professions, St. John's University, Jamaica , New York, 11439
| | - C. A. Lau-Cam
- b College of Pharmacy and Allied Health Professions, St. John's University, Jamaica , New York, 11439
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Castro D, Moreno MA, Lastres JL. First-derivative spectrophotometric and LC determination of nifedipine in Brij 96 based oil/water/oil multiple microemulsions on stability studies. J Pharm Biomed Anal 2001; 26:563-72. [PMID: 11516906 DOI: 10.1016/s0731-7085(01)00474-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A first-derivative spectrophotometric (1D(387)) method was developed for the determination of nifedipine in oil/water/oil (O/W/O) multiple microemulsions during stability studies. The UV first-derivative spectra were recorded over the wavelength range 200-600 nm (Delta lambda=16). The derivative procedure was based on the linear relationship between nifedipine concentration and the first-derivative amplitude at 387 nm. This method was validated and compared with a liquid chromatography (LC) procedure used for the quantitative analysis of the drug. Both methods showed excellent precision and accuracy with values of 2.09 and 1.82%, respectively, for the LC method and of 1.53 and 1.64%, respectively, for the 1D(387) method. The established linearity range was 5-30 microg ml(-1) with r(2) values of 0.9980 and 0.9988 for LC and first-derivative procedures, respectively. Nifedipine recoveries from spiked placebos were >95% for both methods over the linear range analysed. These methods have been successfully used for determining of nifedipine content of multiple microemulsions during stability studies, since there was no interference with its decomposition products.
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Affiliation(s)
- D Castro
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, Complutense University of Madrid, 28040 Madrid, Spain.
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Nakamura I, Takahashi M, Izumi H. Sensitive high-performance liquid chromatographic determination of nifedipine in cat plasma following improved sample treatment. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1999; 729:265-70. [PMID: 10410951 DOI: 10.1016/s0378-4347(99)00167-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A simple, easy and accurate reversed-phase high-performance liquid chromatographic method is described for the determination of nifedipine in cat plasma. The procedure involves extraction of nifedipine from plasma using a Sep-Pak C18 cartridge and ultraviolet detection at 350 nm. The present method provides the required reproducibility and sensitivity for the determination of low concentrations of nifedipine without interference from plasma components or photodegradation products. The method was validated over the range 1-50 ng/ml nifedipine. Accuracy and precision were, respectively, 97% or more and 5% or less over the concentration range examined. The minimum quantifiable concentration of nifedipine was found to be 1 ng/ml.
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Affiliation(s)
- I Nakamura
- Department of Hospital Pharmacy, Tohoku University School of Dentistry, Sendai, Japan.
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Streel B, Zimmer C, Sibenaler R, Ceccato A. Simultaneous determination of nifedipine and dehydronifedipine in human plasma by liquid chromatography-tandem mass spectrometry. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1998; 720:119-28. [PMID: 9892074 DOI: 10.1016/s0378-4347(98)00423-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Quantitative analysis of therapeutic compounds and their metabolites in biological matrix (such as plasma, serum or urine) nowadays requires sensitive and selective methods to allow the determination of concentrations in the ng/ml range. A new on-line LC-MS-MS method using atmospheric pressure chemical ionisation (APCI) as interface for the simultaneous determination of nifedipine (NIF) and its metabolite in human plasma, dehydronifedipine (DNIF) has been developed. The compounds were extracted from plasma using solid-phase extraction (SPE) on disposable extraction cartridges (DECs). The SPE operations were performed automatically by means of a sample processor equipped with a robotic arm (ASPEC system). The DEC filled with phenyl modified silica was first conditioned with methanol and water. The washing step was performed with water. Finally, the analytes were successively eluted with methanol and water. The liquid chromatographic (LC) separation of NIF and DNIF was achieved on a RP-18 stationary phase (4 microm). The mobile phase consisted of methanol-50 mM ammonium acetate solution (50:50, v/v). The LC was then coupled to tandem mass spectrometry with an APCI interface in the positive ion mode. The method developed was validated. The absolute recoveries evaluated over the whole concentration range were 95+/-2% and 95+/-4% for NIF and DNIF, respectively. The method was found to be linear in the 0.5-100 ng/ml concentration range for the two analytes (r2 = 0.999 for both NIF and DNIF). The mean R.S.D. values for repeatability and intermediate precision were 2.9 and 3.0% for NIF and 2.2-4.7% for the metabolite. The method developed was successfully used to investigate the plasma concentration of NIF and DNIF in the pharmacokinetic studies.
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Affiliation(s)
- B Streel
- S.M.B. Laboratories R&D (Galephar), Brussels, Belgium
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Horváth V, Hrabéczy-Páll A, Niegreisz Z, Kocsi E, Horvai G, Gödörházy L, Tolokán A, Klebovich I, Balogh-Nemes K. Sensitive high-performance liquid chromatographic determination of nifedipine in dog plasma using an automated sample preparation system with laboratory robot. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL APPLICATIONS 1996; 686:211-9. [PMID: 8971602 DOI: 10.1016/s0378-4347(96)00216-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Nifedipine, a calcium-channel blocking drug was analysed in dog plasma after oral dosing with two different formulations. Sample preparation was automated with a laboratory robot. Quantitative determination of the drug was performed on a reversed-phase HPLC system with electrochemical detection (ED) using an internal standard. Validation of the analytical method showed that the system is well suited for pharmacokinetic studies on dogs. The assay was linear in the range 1-50 ng/ml. Inter-day and intra-day variability were between 6.43-18.15% C.V. and 1.57-5.53% C.V., respectively.
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Affiliation(s)
- V Horváth
- Technical University of Budapest, Institute for General and Analytical Chemistry, Hungary
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Jankowski A, Lamparczyk H. Evaluation of chromatographic methods for the determination of nifedipine in human serum. J Chromatogr A 1994; 668:469-73. [PMID: 8032493 DOI: 10.1016/0021-9673(94)80141-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Gas-liquid chromatography and high-performance liquid chromatography were compared for the identification and determination of nifedipine in biological samples and the elaboration of the optimum liquid-liquid extraction procedure. The determination limits were 2 and 10 ng/ml, respectively, and the detection limits were 1 and 5 ng/ml, respectively. The calibration graphs were linear in the ranges 2-300 and 10-500 ng/ml, respectively. Recoveries based on three different concentrations were 88.7-95.8% and 93.7-104.2%, respectively. Both methods are sensitive, specific and reproducible enough for pharmacokinetic studies and therapeutic drug monitoring.
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Affiliation(s)
- A Jankowski
- Department of Biopharmaceutics, Medical Centre of Postgraduate Education, Bydgoszcz, Poland
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Soons PA, Schellens JH, Roosemalen MC, Breimer DD. Analysis of nifedipine and its pyridine metabolite dehydronifedipine in blood and plasma: review and improved high-performance liquid chromatographic methodology. J Pharm Biomed Anal 1991; 9:475-84. [PMID: 1747400 DOI: 10.1016/0731-7085(91)80249-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A reversed-phase HPLC method is described for the simultaneous determination of nifedipine and its primary pyridine metabolite dehydronifedipine in blood and plasma, that involves UV detection and neutral (blood) or alkaline (plasma) extraction. The limit of reliable determination is found to be 3 ng ml-1 with an inter-assay RSD of below 11%. In the presence of haemoglobin, nifedipine is unstable at pH greater than 10, necessitating neutral extraction for the measurement of nifedipine in haemolysed blood. Published methods for analysis of nifedipine are reviewed, emphasizing the lack of specificity and sensitivity which render many of them unsuitable for the investigation of nifedipine disposition in man.
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Affiliation(s)
- P A Soons
- Division of Pharmacology, University of Leiden, The Netherlands
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Abstract
Numerous publications during the past ten years have described the determination of various calcium channel blockers in biological fluids, using gas and liquid chromatographic techniques. Diltiazem, verapamil, flunarizine and a growing number of dihydropyridines belong to this group of drugs, which in most instances are active at low plasma concentrations. From a bioanalytical point of view these compounds have many features in common, such as high lipophilicity and favourable detection properties.
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Affiliation(s)
- M Ahnoff
- Bionalytical Chemistry, AB Hässle, Mölndal, Sweden
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