1
|
Amra S, Bourouina M, Bourouina Bacha S, Hauchard D. Preconcentration and Successful Selective Detection of Traces of Diclofenac in Water using a Nanostructured Modified Carbon Paste Electrode. ELECTROANAL 2020. [DOI: 10.1002/elan.202060415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Siham Amra
- Département de Chimie, Faculté des Sciences Exactes Université A. Mira Bejaia 06000 Algérie
- Univ Rennes Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR – UMR6226 F-35000 Rennes France
| | - Mustapha Bourouina
- Département de Chimie, Faculté des Sciences Exactes Université A. Mira Bejaia 06000 Algérie
| | - Saliha Bourouina Bacha
- Département de Génie des procédés, Faculté de technologie Université A. Mira Bejaia 06000 Algérie
| | - Didier Hauchard
- Univ Rennes Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR – UMR6226 F-35000 Rennes France
| |
Collapse
|
2
|
Pencil graphite electrode based electrochemical system for the investigation of antihypertensive drug hydrochlorothiazide: An electrochemical study. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2019.136718] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
3
|
Electrochemical study of hydrochlorothiazide on electrochemically pre-treated pencil graphite electrode as a sensor. SENSING AND BIO-SENSING RESEARCH 2017. [DOI: 10.1016/j.sbsr.2017.09.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
4
|
Oliveira SN, Ribeiro FW, Sousa CP, Soares JES, Suffredini HB, Becker H, de Lima-Neto P, Correia AN. Imipramine sensing in pharmaceutical formulations using boron-doped diamond electrode. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.01.067] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
5
|
Cázares-Delgadillo J, Ganem-Rondero A, Merino V, Kalia YN. Controlled transdermal iontophoresis for poly-pharmacotherapy: Simultaneous delivery of granisetron, metoclopramide and dexamethasone sodium phosphate in vitro and in vivo. Eur J Pharm Sci 2016; 85:31-8. [PMID: 26826281 DOI: 10.1016/j.ejps.2016.01.027] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 11/16/2022]
Abstract
Iontophoresis has been used to deliver small molecules, peptides and proteins into and across the skin. In principle, it provides a controlled, non-invasive method for poly-pharmacotherapy since it is possible to formulate and to deliver multiple therapeutic agents simultaneously from the anodal and cathodal compartments. The objective of this proof-of-principle study was to investigate the simultaneous anodal iontophoretic delivery of granisetron (GST) and metoclopramide (MCL) and cathodal iontophoresis of dexamethasone sodium phosphate (DEX-P). In addition to validating the hypothesis, these are medications that are routinely used in combination to treat chemotherapy-induced emesis. Two preliminary in vitro studies using porcine skin were performed: Study 1 - effect of formulation composition on anodal co-iontophoresis of GST and MCL and Study 2 - combined anodal iontophoresis of GST (10mM) and MCL (110 mM) and cathodal iontophoresis of DEX-P (40 mM). The results from Study 1 demonstrated the dependence of GST/MCL transport on the respective drug concentrations when co-iontophoresed at 0.3 mA·cm(-2). Although they possess similar physicochemical properties, MCL seemed to be a more efficient charge carrier (JMCL=0.0591∗CMCLvs JGST=0.0414∗CGST). In Study 2, MCL permeation was markedly superior to that of GST (2324.83 ± 307.85 and 209.83 ± 24.84 μg·cm(-2), respectively); this was consistent with the difference in their relative concentrations; DEX-P permeation was 336.94 ± 71.91 μg·cm(-2). The in vivo studies in Wistar rats (10mM GST, 110 mM MCL and 40 mM DEX-P (0.5 mA·cm(-2) for 5h with Ag/AgCl electrodes and salt bridges) demonstrated that significant drug levels were achieved rapidly for each drug. This was most noticeable for dexamethasone (DEX) where relatively constant plasma levels were obtained from the 1 to 5h time-points; DEX-P was not detected in the plasma since it was completely hydrolyzed to the active metabolite. The calculated input rates in vivo (k01) for GST, MCL and DEX were 0.45 ± 0.05, 3.29 ± 0.48 and 1.97 ± 0.38 μg·cm(-2) · min(-1), respectively. The study confirmed that iontophoresis provided a controlled method for the simultaneous administration of multiple therapeutic agents and that it could be of use for poly-pharmacotherapy in general and more specifically that it was able to deliver different drugs used in the treatment of chemotherapy-induced emesis.
Collapse
Affiliation(s)
- Jennyfer Cázares-Delgadillo
- School of Pharmaceutical Sciences, University of Geneva & University of Lausanne, 30 Quai Ernest Ansermet, 1211 Geneva, Switzerland
| | - Adriana Ganem-Rondero
- División de Estudios de Posgrado (Tecnología Farmacéutica), Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Av. 1° de Mayo S/N Cuautitlán Izcalli, Estado de México 54704, Mexico
| | - Virginia Merino
- Departamento de Farmacia y Tecnología Farmacéutica, Faculty of Pharmacy, University of Valencia, Avda. Vicente Andrés Estellés s/n, 46100 Burjassot, Valencia, Spain
| | - Yogeshvar N Kalia
- School of Pharmaceutical Sciences, University of Geneva & University of Lausanne, 30 Quai Ernest Ansermet, 1211 Geneva, Switzerland.
| |
Collapse
|
6
|
Song J, Sun P, Ji Z, Li J. Flow injection determination of diclofenac sodium based on its sensitizing effect on the chemiluminescent reaction of acidic potassium permanganate-formaldehyde. LUMINESCENCE 2014; 30:32-7. [PMID: 24802238 DOI: 10.1002/bio.2685] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Revised: 03/12/2014] [Accepted: 03/23/2014] [Indexed: 11/06/2022]
Abstract
A sensitive and simple chemiluminescent (CL) method for the determination of diclofenac sodium has been developed by combining the flow injection technique and its sensitizing effect on the weak CL reaction between formaldehyde and acidic potassium permanganate. A calibration curve is constructed for diclofenac sodium under optimized experimental parameters over the range 0.040-5.0 µg/mL and the limit of detection is 0.020 µg/mL (3σ). The inter-assay relative standard deviation for 0.040 µg/mL diclofenac sodium (n = 11) is 2.0%. This method is rapid, sensitive, simple, and shows good selectivity and reproducibility. The proposed method has been successfully applied to the determination of the studied diclofenac sodium in pharmaceutical preparations with satisfactory results. Furthermore, the possible mechanism for the CL reaction has been discussed in detail on the basis of UV and CL spectra.
Collapse
Affiliation(s)
- Jingjing Song
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, People's Republic of China; The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, Suzhou, 215123, People's Republic of China
| | | | | | | |
Collapse
|
7
|
Qiu X, Wang Z, Wang B, Zhan H, Pan X, Xu RA. Simultaneous determination of irbesartan and hydrochlorothiazide in human plasma by ultra high performance liquid chromatography tandem mass spectrometry and its application to a bioequivalence study. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 957:110-5. [DOI: 10.1016/j.jchromb.2014.03.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 02/26/2014] [Accepted: 03/03/2014] [Indexed: 11/26/2022]
|
8
|
Belal FF, Sharaf El-Din MK, Tolba MM, Elmansi H. Derivative Spectrophotometric and Liquid Chromatographic Methods for the Simultaneous Determination of Metoclopramide Hydrochloride and Aspirin in Pharmaceuticals. J Chromatogr Sci 2014; 52:1224-32. [DOI: 10.1093/chromsci/bmt202] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
9
|
Heydari R, Shamsipur M, Naleini N. Simultaneous determination of EDTA, sorbic acid, and diclofenac sodium in pharmaceutical preparations using high-performance liquid chromatography. AAPS PharmSciTech 2013; 14:764-9. [PMID: 23585291 PMCID: PMC3666002 DOI: 10.1208/s12249-013-9962-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 03/22/2013] [Indexed: 11/30/2022] Open
Abstract
A simple high-performance liquid chromatographic method for simultaneous determination of ethylenediaminetetraacetic acid (EDTA), sorbic acid, and diclofenac sodium was developed and validated. Separation was achieved on a C(18) column (10 cm×4.6 mm) using gradient elution. The mobile phase consisted of acetonitrile-ammonium dihydrogen phosphate buffer solution (0.01 M, pH=2.5, containing 0.8% tetra-n-butyl ammonium hydroxide). The detector wavelength was set at 254 nm. Under these conditions, separation of three compounds was achieved in less than 10 min. The effect of two metal salts and metal concentration on peak area of EDTA was investigated. The pH effect on retention of EDTA and sorbic acid was studied. The method showed linearity for EDTA, sorbic acid, and diclofenac in the ranges of 2.5-100.0, 5.0-200.0, and 20.0-120.0 μg/mL, respectively. The within- and between-day relative standard deviations ranged from 0.52 to 1.94%, 0.50 to 1.34%, and 0.78 to 1.67% for EDTA, sorbic acid, and diclofenac, respectively. The recovery of EDTA, sorbic acid, and diclofenac from pharmaceutical preparation ranged from 96.0-102.0%, 99.7-101.5%, to 97.0-102.5%, respectively. To the best of our knowledge, this is the first report about simultaneous determination of EDTA, sorbic acid, and diclofenac.
Collapse
Affiliation(s)
- Rouhollah Heydari
- />Department of Chemistry, Faculty of Science, Khorramabad Branch, Islamic Azad University, Khorramabad, Iran
| | - Mojtaba Shamsipur
- />Department of Chemistry, Faculty of Science, Razi University, Kermanshah, Iran
| | - Nasim Naleini
- />Department of Chemistry, Faculty of Science, Khorramabad Branch, Islamic Azad University, Khorramabad, Iran
| |
Collapse
|
10
|
Xin C, Lihong W, Fei H, Yan W, Qifang W, Yang Y, Yue Y, San-ming L. To enhance the efficiency of nefopam transdermal iontophoresis by using a novel method based on ion-exchange fiber. Drug Dev Ind Pharm 2013; 40:9-16. [DOI: 10.3109/03639045.2012.743558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
11
|
Walash M, Belal F, El-Enany N, El-Maghrabey M. SIMULTANEOUS DETERMINATION OF METOCLOPRAMIDE HYDROCHLORIDE AND PYRIDOXINE HYDROCHLORIDE IN SYRUP USING HPLC METHOD WITH FLUORESCENCE DETECTION: APPLICATION TO HUMAN PLASMA. J LIQ CHROMATOGR R T 2013. [DOI: 10.1080/10826076.2012.658590] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Mohamed Walash
- a Department of Analytical Chemistry, Faculty of Pharmacy , University of Mansoura , Mansoura , Egypt
| | - Fathalla Belal
- a Department of Analytical Chemistry, Faculty of Pharmacy , University of Mansoura , Mansoura , Egypt
| | - Nahed El-Enany
- a Department of Analytical Chemistry, Faculty of Pharmacy , University of Mansoura , Mansoura , Egypt
| | - Mahmoud El-Maghrabey
- a Department of Analytical Chemistry, Faculty of Pharmacy , University of Mansoura , Mansoura , Egypt
| |
Collapse
|
12
|
Voltammetric and amperometric determination of metoclopramide on boron-doped diamond film electrode. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0056-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractNew methods for the determination of metoclopramide, antiemetic and gastroprokinetic pharmaceutical, were developed, using differential pulse voltammetry (DPV) and flow injection analysis (FIA) with amperometric detection on a boron-doped diamond film electrode. Electrode pretreatment necessary to ensure the stable results was investigated and it was found, that while DPV requires frequent electrode cleaning, FIA with a sufficiently high flow rate can maintain a stable signal with no signs of electrode passivation. The calculated quantification limits of the DPV and FIA with amperometric detection were 0.13 μmol L−1 and 0.015 mmol L−1, respectively. The applicability of the new methods was verified by the determination of metoclopramide in a pharmaceutical preparation. FIA with amperometic detection proved to be sensitive, accurate and, due to the resistance of the electrode to the passivation, also simple to handle.
Collapse
|
13
|
Xin C, Li-hong W, Jing Y, Yang Y, Yue Y, Qi-fang W, San-ming L. Ketoconazole ion-exchange fiber complex: a novel method to reduce the individual difference of bioavailability in oral administration caused by gastric anacidity. Pharm Dev Technol 2012; 18:1346-54. [PMID: 22670853 DOI: 10.3109/10837450.2012.696266] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Che Xin
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | | | | | | | | | | | | |
Collapse
|
14
|
A novel method to enhance the efficiency of drug transdermal iontophoresis delivery by using complexes of drug and ion-exchange fibers. Int J Pharm 2012; 428:68-75. [DOI: 10.1016/j.ijpharm.2012.02.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Revised: 02/20/2012] [Accepted: 02/23/2012] [Indexed: 11/23/2022]
|
15
|
Shang D, Wang X, Zhao X, Huang F, Tian G, Lu W, Zhou T. Simultaneous determination of nitrendipine and hydrochlorothiazide in spontaneously hypertensive rat plasma using HPLC with on-line solid-phase extraction. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:3459-64. [DOI: 10.1016/j.jchromb.2011.09.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 09/03/2011] [Accepted: 09/12/2011] [Indexed: 10/17/2022]
|
16
|
Coudoré F, Harvard L, Lefeuvre S, Billaud EM, Beaune P, Bobrie G, Azizi M, Prognon P, Laurent S. HPLC–DAD Analysis of Hydrochlorothiazide and Irbesartan in Hypertensive Patients on Fixed-Dose Combination Therapy. Chromatographia 2011. [DOI: 10.1007/s10337-011-2111-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
17
|
CANTARELLI MA, PELLERANO RG, MARCHEVSKY EJ, CAMIÑA JM. Simultaneous Determination of Amoxicillin and Diclofenac in Pharmaceutical Formulations Using UV Spectral Data and the PLS Chemometric Method. ANAL SCI 2011; 27:73-8. [DOI: 10.2116/analsci.27.73] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | | | | | - Jose M. CAMIÑA
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
| |
Collapse
|
18
|
Bio-sample preparation and analytical methods for the determination of tricyclic antidepressants. Bioanalysis 2011; 3:97-118. [DOI: 10.4155/bio.10.160] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
An extended and comprehensive review is presented herein, focusing on sample preparation (pretreatment and extraction) and different analytical methods applied for the quantification of tricyclic antidepressants. These procedures are relevant tools in clinical and forensic toxicology. It is revealed that SPE, for sample preparation, and HPLC, using reversed-phase alkyl (C18) or cyanopropyl-bonded silica columns for the analytes separation, are effective and versatile methods for assay of tricyclic antidepressants. These methods enable achievable detection limits using UV/diode array detection, readily available in most laboratories, down to 1–8 ng ml-1, and using electron capture detection better than 1 ng ml-1, which is lower than that for nitrogen–phosphorus detector. MS interfaced with electrospray ionization offered similar sensitivity, whilst sonic spray ionization provided detection down to 0.03 ng ml-1. A brief discussion on chemical structures, metabolism and mechanism of action of this group of drugs is also presented.
Collapse
|
19
|
Attia MS, Othman AM, Elraghi E, Aboul-Enein HY. Spectrofluorimetric Assessment of Metoclopramide Hydrochloride Using Terbium Doped in PMMA Matrix Optical Sensor. J Fluoresc 2010; 21:739-45. [DOI: 10.1007/s10895-010-0764-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2010] [Accepted: 10/25/2010] [Indexed: 11/29/2022]
|
20
|
Comparing metoclopramide electrotransport kinetics in vitro and in vivo. Eur J Pharm Sci 2010; 41:353-9. [DOI: 10.1016/j.ejps.2010.07.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2010] [Revised: 06/30/2010] [Accepted: 07/04/2010] [Indexed: 11/23/2022]
|
21
|
Transdermal iontophoresis of dexamethasone sodium phosphate in vitro and in vivo: Effect of experimental parameters and skin type on drug stability and transport kinetics. Eur J Pharm Biopharm 2010; 75:173-8. [DOI: 10.1016/j.ejpb.2010.03.011] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Revised: 03/04/2010] [Accepted: 03/18/2010] [Indexed: 11/19/2022]
|
22
|
Tutunji LF, Tutunji MF, Alzoubi MI, Khabbas MH, Arida AI. Simultaneous determination of irbesartan and hydrochlorothiazide in human plasma using HPLC coupled with tandem mass spectrometry: Application to bioequivalence studies. J Pharm Biomed Anal 2010; 51:985-90. [DOI: 10.1016/j.jpba.2009.10.023] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2009] [Revised: 09/26/2009] [Accepted: 10/30/2009] [Indexed: 11/25/2022]
|
23
|
Javanbakht M, Shaabani N, Akbari-adergani B. Novel molecularly imprinted polymers for the selective extraction and determination of metoclopramide in human serum and urine samples using high-performance liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:2537-44. [DOI: 10.1016/j.jchromb.2009.06.030] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2009] [Revised: 06/20/2009] [Accepted: 06/22/2009] [Indexed: 11/15/2022]
|
24
|
Mazurek S, Szostak R. Quantitative determination of diclofenac sodium in solid dosage forms by FT-Raman spectroscopy. J Pharm Biomed Anal 2008; 48:814-21. [PMID: 18819768 DOI: 10.1016/j.jpba.2008.08.013] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2008] [Revised: 08/05/2008] [Accepted: 08/06/2008] [Indexed: 10/21/2022]
Abstract
The FT-Raman quantification of diclofenac sodium in tablets and capsules was performed with the help of the partial least squares (PLS), principal component regression (PCR) and counter-propagation artificial neural networks (CP-ANN) methods. For the analysed tablets, calibration models were built using unnormalised spectra and spectra normalised by the intensity of a selected band of an internal standard. Different pre-processing methods were applied for the capsules. To compare the predictive ability of the models, the relative standard errors of prediction (RSEP) were calculated. The 5 x 5 CP-ANN and PLS methods gave models of comparable quality, which were usually more efficient than the PCR ones. The RSEP error values for the tablets were in the range of 2.4-3.8% for the calibration and 2.6-3.5% for the validation data sets and for the three procedures applied. For capsules, the RSEP errors were in the range of 0.8-1.9% and 1.4-1.7% for the calibration and validation samples, respectively. Five commercial products containing 25, 50 or 75 mg of diclofenac sodium per tablet/capsule were quantified. Concentrations found from the Raman data analysis agree with the results of the reference analysis and correlate strongly with the declared values with the recovery of 99.5-101.3%, 99.7-102.0% and 99.9-101.2% for the PLS, PCR and CP-ANN methods, respectively. The proposed procedure can be a fast and convenient alternative to the standard pharmacopoeial methods of diclofenac sodium quantification in solid dosage forms.
Collapse
Affiliation(s)
- Sylwester Mazurek
- Department of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
| | | |
Collapse
|
25
|
Electrogenerated chemiluminescence sensor for metoclopramide determination based on Ru(bpy)32+-doped silica nanoparticles dispersed in Nafion on glassy carbon electrode. J Pharm Biomed Anal 2008; 47:670-6. [DOI: 10.1016/j.jpba.2008.03.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2007] [Revised: 03/05/2008] [Accepted: 03/09/2008] [Indexed: 11/19/2022]
|
26
|
Wu YT, Tsai TR, Lin LC, Tsai TH. Liquid chromatographic method with amperometric detection to determine acteoside in rat blood and brain microdialysates and its application to pharmacokinetic study. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 853:281-6. [PMID: 17442636 DOI: 10.1016/j.jchromb.2007.03.033] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2007] [Revised: 03/17/2007] [Accepted: 03/20/2007] [Indexed: 10/23/2022]
Abstract
A simple and sensitive liquid chromatography with amperometric detection was developed for the first time to monitor the protein-unbound acteoside in the rat blood and brain microdialysate by microdialysis technique. Microdialysis samples without further cleanup procedures were directly injected into the HPLC and separated using a reversed-phase C18 column (150 mmx2 mm, i.d. 5 microm) maintained at ambient temperature and a mobile phase comprised of acetonitrile-50 mM monosodium phosphate (pH 2.8) (17:83, v/v) with a flow rate of 0.2 mL/min. Based on the experimental voltamogram, the applied potential was set at +0.9 V oxidative mode. The concentration-response relationship was linear (r2>0.99) over a concentration range of 5-500 ng/mL; method precision and accuracy fell within predefined limits (less than 20%). The developed method was applied to assess the pharmacokinetics of acteoside, and the results suggested that acteoside was fitted better by the two-compartmental model following a single intravenous injection of acteoside. Acteoside was unable to be detected in the brain dialysate. The distribution and elimination half-lives of unbound acteoside in the blood were 5 and 28 min, respectively, which suggested the rapid distribution of acteoside.
Collapse
Affiliation(s)
- Yu-Tse Wu
- Institute of Traditional Medicine, National Yang-Ming University, Taipei 112, Taiwan
| | | | | | | |
Collapse
|
27
|
Özkan SA. LC with Electrochemical Detection. Recent Application to Pharmaceuticals and Biological Fluids. Chromatographia 2007. [DOI: 10.1365/s10337-007-0223-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|