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Pratiwi R, Noviana E, Fauziati R, Carrão DB, Gandhi FA, Majid MA, Saputri FA. A Review of Analytical Methods for Codeine Determination. Molecules 2021; 26:800. [PMID: 33557168 PMCID: PMC7913935 DOI: 10.3390/molecules26040800] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/28/2021] [Accepted: 02/01/2021] [Indexed: 02/06/2023] Open
Abstract
Codeine is derived from morphine, an opioid analgesic, and has weaker analgesic and sedative effects than the parent molecule. This weak opioid is commonly used in combination with other drugs for over-the-counter cough relief medication. Due to the psychoactive properties of opioid drugs, the easily obtained codeine often becomes subject to misuse. Codeine misuse has emerged as a concerning public health issue due to its associated adverse effects such as headache, nausea, vomiting, and hemorrhage. Thus, it is very important to develop reliable analytical techniques to detect codeine for both quality control of pharmaceutical formulations and identifying drug misuse in the community. This review aims to provide critical outlooks on analytical methods applicable to the determination of codeine.
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Affiliation(s)
- Rimadani Pratiwi
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia; (R.F.); (F.A.G.); (M.A.M.); (F.A.S.)
| | - Eka Noviana
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia;
| | - Rizky Fauziati
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia; (R.F.); (F.A.G.); (M.A.M.); (F.A.S.)
| | - Daniel Blascke Carrão
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14040-901, Brazil;
| | - Firas Adinda Gandhi
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia; (R.F.); (F.A.G.); (M.A.M.); (F.A.S.)
| | - Mutiara Aini Majid
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia; (R.F.); (F.A.G.); (M.A.M.); (F.A.S.)
| | - Febrina Amelia Saputri
- Department of Pharmaceutical Analysis and Medicinal Chemistry, Faculty of Pharmacy, Universitas Padjadjaran, Bandung 45363, Indonesia; (R.F.); (F.A.G.); (M.A.M.); (F.A.S.)
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Dehnavi F, Dadfarnia S, Shabani AMH, Babaei A. Dispersive Liquid–Liquid Microextraction Based on Solidification of Floating Organic Drop for Isolation and Determination of Opium Alkaloids. JOURNAL OF ANALYTICAL CHEMISTRY 2018. [DOI: 10.1134/s106193481808004x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Subaihi A, Muhamadali H, Mutter ST, Blanch E, Ellis DI, Goodacre R. Quantitative detection of codeine in human plasma using surface-enhanced Raman scattering via adaptation of the isotopic labelling principle. Analyst 2017; 142:1099-1105. [DOI: 10.1039/c7an00193b] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this study surface-enhanced Raman scattering (SERS) combined with the isotopic labelling (IL) principle has been used for the quantification of codeine spiked into both water and human plasma.
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Affiliation(s)
- Abdu Subaihi
- School of Chemistry
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
| | - Howbeer Muhamadali
- School of Chemistry
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
| | - Shaun T. Mutter
- School of Chemistry
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
| | | | - David I. Ellis
- School of Chemistry
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
| | - Royston Goodacre
- School of Chemistry
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
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4
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Review: The Application of Liquid Chromatography Electrochemical Detection for the Determination of Drugs of Abuse. SEPARATIONS 2016. [DOI: 10.3390/separations3040028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Madrakian T, Fazl F, Ahmadi M, Afkhami A. Efficient solid phase extraction of codeine from human urine samples using a novel magnetic molecularly imprinted nanoadsorbent and its spectrofluorometric determination. NEW J CHEM 2016. [DOI: 10.1039/c5nj01588j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
From a medical or clinical point of view, to assess toxicity, adverse effects, interactions and therapeutic efficiency, monitoring drug levels in body fluids, such as urine and plasma, has become increasingly necessary.
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Affiliation(s)
| | - Fariba Fazl
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan
- Iran
| | | | - Abbas Afkhami
- Faculty of Chemistry
- Bu-Ali Sina University
- Hamedan
- Iran
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Anticodeine aptamer immobilized on a Whatman cellulose paper for thin-film microextraction of codeine from urine followed by electrospray ionization ion mobility spectrometry. Anal Bioanal Chem 2014; 407:1615-23. [PMID: 25524232 DOI: 10.1007/s00216-014-8392-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2014] [Revised: 12/01/2014] [Accepted: 12/04/2014] [Indexed: 01/22/2023]
Abstract
A combination of thin-film microextaction based on an aptamer immobilized on modified Whatman cellulose paper followed by electrospray ionization ion mobility spectrometry has been developed for the analysis of codeine in urine samples. The immobilization is based on the covalent linking of an amino-modified anticodeine aptamer to aldehyde groups of the oxidized cellulose paper. The covalent bonds were examined by infrared spectroscopy and elemental analysis. The effect of the extraction parameters, including the elution conditions (solvent type and volume), extraction time, and extraction temperature, on the extraction efficiency were investigated. Under the optimized conditions, the linear dynamic range was found to be 10-300 ng/mL with a detection limit of 3.4 ng/mL for codeine in urine. The relative standard deviation was 6.8% for three replicate measurements of codeine at 100 ng/mL in urine. Furthermore, the samples were analyzed with a standard method for the analysis of codeine using high-performance liquid chromatography with ultraviolet detection. The comparison of the results validates the accuracy of the proposed method as an alternative method for the analysis of codeine in urine samples.
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7
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Zhou K, Khokhar JY, Zhao B, Tyndale RF. First demonstration that brain CYP2D-mediated opiate metabolic activation alters analgesia in vivo. Biochem Pharmacol 2013; 85:1848-55. [PMID: 23623752 DOI: 10.1016/j.bcp.2013.04.014] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 04/13/2013] [Accepted: 04/16/2013] [Indexed: 12/13/2022]
Abstract
The response to centrally acting drugs is highly variable between individuals and does not always correlate with plasma drug levels. Drug-metabolizing CYP enzymes in the brain may contribute to this variability by affecting local drug and metabolite concentrations. CYP2D metabolizes codeine to the active morphine metabolite. We investigated the effect of inhibiting brain, and not liver, CYP2D activity on codeine-induced analgesia. Rats received intracerebroventricular injections of CYP2D inhibitors (20 μg propranolol or 40 μg propafenone) or vehicle controls. Compared to vehicle-pretreated rats, inhibitor-pretreated rats had: (a) lower analgesia in the tail-flick test (p<0.05) and lower areas under the analgesia-time curve (p<0.02) within the first hour after 30 mg/kg subcutaneous codeine, (b) lower morphine concentrations and morphine to codeine ratios in the brain (p<0.02 and p<0.05, respectively), but not in plasma (p>0.6 and p>0.7, respectively), tested at 30 min after 30 mg/kg subcutaneous codeine, and (c) lower morphine formation from codeine ex vivo by brain membranes (p<0.04), but not by liver microsomes (p>0.9). Analgesia trended toward a correlation with brain morphine concentrations (p=0.07) and correlated with brain morphine to codeine ratios (p<0.005), but not with plasma morphine concentrations (p>0.8) or plasma morphine to codeine ratios (p>0.8). Our findings suggest that brain CYP2D affects brain morphine levels after peripheral codeine administration, and may thereby alter codeine's therapeutic efficacy, side-effect profile and abuse liability. Brain CYPs are highly variable due to genetics, environmental factors and age, and may therefore contribute to interindividual variation in the response to centrally acting drugs.
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Affiliation(s)
- Kaidi Zhou
- Departments of Pharmacology & Toxicology and Psychiatry, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada
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Ensafi AA, Heydari-Bafrooei E, Rezaei B. Different interaction of codeine and morphine with DNA: a concept for simultaneous determination. Biosens Bioelectron 2012; 41:627-33. [PMID: 23079341 DOI: 10.1016/j.bios.2012.09.039] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 09/17/2012] [Accepted: 09/21/2012] [Indexed: 11/24/2022]
Abstract
In this study, the interaction between codeine and morphine with dsDNA was assessed at pH 7.0. Poly(diallyldimethylammonium chloride), PDDA, was used as a dispersant of MWCNTs. Using differential pulse voltammetry (DPV) at pencil graphite electrode (PGE) showed that both molecules were electrochemically oxidized due to the presence of phenolic and amino groups in their structures. When DNA was added to the solution, the electrochemical signal of codeine and morphine was decreased and shifted to more negative and positive potentials, respectively. The interaction modes were respectively electrostatic for codeine and intercalation for morphine with two anodic peaks of codeine being merged into them when DNA concentration was increased. At high DNA concentrations, a sharp anodic wave for codeine and a clear discrimination of codeine and morphine oxidation peaks were observed. Finally, a pencil graphite electrode was modified with carbon nanotubes and DNA was tested in order to determine codeine and morphine in solution. Electrochemical oxidation of codeine and morphine bonded on dsDNA/MWCNTs-PDDA/PGE was used to obtain an analytical signal. Allowing five min as an accumulation time, a linear dependence was observed between 0.05 and 40 μg mL(-1) for codeine and 0.05 and 42 μg mL(-1) for morphine. Detection limits of 0.041 and 0.043 μg mL(-1) were obtained for codeine and morphine, respectively. The biosensor was applied to validate its capability for the analysis of codeine and morphine in blood serum, urine samples and pharmaceutical formulations.
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Affiliation(s)
- Ali A Ensafi
- Department of Chemistry, Isfahan University of Technology, Isfahan 84156-83111, Iran.
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9
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Lu M, Li Q, Lai Y, Zhang L, Qiu B, Chen G, Cai Z. Determination of stimulants and narcotics as well as their in vitro metabolites by online CE-ESI-MS. Electrophoresis 2011; 32:472-8. [PMID: 21254133 DOI: 10.1002/elps.201000453] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2010] [Revised: 11/12/2010] [Accepted: 11/27/2010] [Indexed: 11/06/2022]
Abstract
A simple, rapid and sensitive CE-ESI-MS method for the simultaneous analysis of seven stimulants and narcotics (amphetamine, ephedrine, methadone, pethidine, tetracaine, codeine and heroin) was developed. The CE-ESI-MS experimental conditions were optimized as follows: 20 mmol/L ammonium acetate with pH 9.0 as running buffer, the separation voltage of 22 kV and the sheath liquid of isopropanol/water (1:1 v/v) containing 7.5 mmol/L acetic acid with 3.0 μL/min flow rate. Under the optimized conditions, the stimulants and narcotics were well separated within 4.6 min using a 70-cm length fused-silica capillary (50 μm id). The detection limits (S/N=3) of the CE-ESI-MS analysis were in the range of 0.40-1.0 ng/mL. Method repeatability of intra-day and inter-day was satisfactory. The recoveries obtained from the analysis of spiked urine samples were between 84.1 and 108%. The developed method was successfully applied for the simultaneous analysis of methadone, pethidine and codeine and their in vitro metabolites.
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Affiliation(s)
- Minghua Lu
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Fuzhou, PR China
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Kolmonen M, Leinonen A, Kuuranne T, Pelander A, Ojanperä I. Hydrophilic interaction liquid chromatography and accurate mass measurement for quantification and confirmation of morphine, codeine and their glucuronide conjugates in human urine. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:2959-66. [DOI: 10.1016/j.jchromb.2010.08.047] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 08/26/2010] [Accepted: 08/30/2010] [Indexed: 10/19/2022]
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11
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Simultaneous voltammetric and amperometric determination of morphine and codeine using a chemically modified-palladized aluminum electrode. J Electroanal Chem (Lausanne) 2008. [DOI: 10.1016/j.jelechem.2008.09.016] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Ganjali M, Norouzi P, Dinarvand R, Farrokhi R, Moosavi-movahedi A. Development of fast Fourier transformations with continuous cyclic voltammetry at an Au microelectrode and its application for the sub nano-molar monitoring of methyl morphine trace amounts. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2008. [DOI: 10.1016/j.msec.2008.01.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Lin YH, Chiang JF, Lee MR, Lee RJ, Ko WK, Wu SM. Cation-selective exhaustive injection and sweeping micellar electrokinetic chromatography for analysis of morphine and its four metabolites in human urine. Electrophoresis 2008; 29:2340-7. [DOI: 10.1002/elps.200700825] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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14
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Cheng YF, Neue UD, Bonin R, Block E, Bean L. SIMPLIFIED PROCEDURE FOR THE DETERMINATION OF CODEINE AND ITS METABOLITE IN URINE AND PLASMA BY LC/UV AND LC/MS USING MIXED-MODE CATION EXCHANGE FOR SAMPLE PREPARATION. J LIQ CHROMATOGR R T 2007. [DOI: 10.1081/jlc-100103452] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Yung-Fong Cheng
- a Waters Corporation , 34 Maple Street, Milford, MA, 01757, U.S.A
| | - Uwe D. Neue
- a Waters Corporation , 34 Maple Street, Milford, MA, 01757, U.S.A
| | - Robert Bonin
- a Waters Corporation , 34 Maple Street, Milford, MA, 01757, U.S.A
| | - Eric Block
- a Waters Corporation , 34 Maple Street, Milford, MA, 01757, U.S.A
| | - Laura Bean
- a Waters Corporation , 34 Maple Street, Milford, MA, 01757, U.S.A
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Musshoff F, Trafkowski J, Kuepper U, Madea B. An automated and fully validated LC-MS/MS procedure for the simultaneous determination of 11 opioids used in palliative care, with 5 of their metabolites. JOURNAL OF MASS SPECTROMETRY : JMS 2006; 41:633-40. [PMID: 16541404 DOI: 10.1002/jms.1021] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
A fully validated liquid chromatographic procedure coupled with electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) is presented for quantitative determination of the opioids buprenorphine, codeine, fentanyl, hydromorphone, methadone, morphine, oxycodone, oxymorphone, piritramide, tilidine, and tramadol together with their metabolites bisnortilidine, morphine-glucuronides, norfentanyl, and nortilidine in blood plasma after an automatically performed solid-phase extraction (SPE). Separation was achieved in 35 min on a Phenomenex C12 MAX-RP column (4 microm, 150 x 2 mm) using a gradient of ammonium formiate buffer (pH 3.5) and acetonitrile. The validation data were within the required limits. The assay was successfully applied to authentic plasma samples, allowing confirmation of the diagnosis of overdose situations as well as monitoring of patients' compliance, especially in patients under palliative care.
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Affiliation(s)
- F Musshoff
- Institute of Forensic Medicine, Stiftsplatz 12, 53111 Bonn, Germany.
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16
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Kaushik R, Levine B, LaCourse WR. A brief review: HPLC methods to directly detect drug glucuronides in biological matrices (Part I). Anal Chim Acta 2006. [DOI: 10.1016/j.aca.2005.09.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Zhou T, Yu H, Hu Q, Fang Y. Determination of codeine and its metabolite in human urine by CE with amperometric detection. J Pharm Biomed Anal 2002; 30:13-9. [PMID: 12151061 DOI: 10.1016/s0731-7085(02)00019-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The amperometric detection of codeine and its metabolite, morphine following capillary zone electrophoretic separation is described. A carbon-disk electrode used as working electrode for two analytes exhibited a good response at 0.90 V (vs. Ag/AgCl). The optimal conditions of separation and detection were pH 8.4 phosphate buffer solution (0.06 mol x l(-1)), 12 kV for the separation voltage, sample injection at 12 kV for 10 s. The linear ranges were from 3.1 x 10(-7) to 2.5 x 10(-5) mol x l(-1) for codeine and 1.9 x 10(-7) to 1.5 x 10(-5) x mol l(-1) for morphine with a correlation coefficient of 0.9996 and 0.9999, respectively. The detection limits for codeine and morphine were 1.6 x 10(-7) and 6.8 x 10(-8) x mol l(-1). The method developed was successfully applied to the determination of codeine and its metabolite, morphine in the human urine without any other sample pretreatment except filtration, and the results were satisfactory.
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Affiliation(s)
- Tianshu Zhou
- Department of Chemistry, East China Normal University, 200062, Shanghai, PR China
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Shih Y, Zen JM, Yang HH. Determination of codeine in urine and drug formulations using a clay-modified screen-printed carbon electrode. J Pharm Biomed Anal 2002; 29:827-33. [PMID: 12093515 DOI: 10.1016/s0731-7085(02)00179-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Both flow-injection analysis and square-wave stripping voltammetry were evaluated for the determination of codeine in pharmaceutical formulations using a nontronite clay-modified screen-printed carbon electrode. Compared with a bare screen-printed carbon electrode, the nontronite clay-modified screen-printed carbon electrode exhibited a marked enhancement of the current response of codeine. A linear calibration plot was obtained over the 2.5-45 microM range (correlation coefficient=0.999) in pH 6.0 phosphate buffer solution with a detection limit of 20 nM (S/N=3) by square-wave voltammetry (SWV). While, in flow-injection analysis, the linearity was over 5-120 ng range with a detection limit of 1 ng in 20 microl loop. The nontronite clay-modified screen-printed carbon electrode can be either disposable or reused since the renewal gave a good reproducible surface. Quantitative analysis was performed by the standard addition method for codeine content in both urine and commercially available drugs.
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Affiliation(s)
- Y Shih
- Department of Applied Cosmetology, Hung-Kuang Institute of Technology, 34 Chung-Chie Rd. Sha-Lu, 433, Taichung, Taiwan, ROC
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Pennanen K, Kotiaho T, Huikko K, Kostiainen R. Identification of ozone-oxidation products of oxycodone by electrospray ion trap mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2001; 36:791-797. [PMID: 11473402 DOI: 10.1002/jms.180] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The products of oxycodone oxidized by ozone were characterized by electrospray ionization-tandem mass spectrometry (ESI--MS/MS). Liquid Chromatography(LC)--MS analyses revealed that the main constituents in the oxidation reaction mixture included the protonated molecules m/z 316, corresponding to oxycodone, and m/z 332, m/z 348, m/z 366, corresponding to the oxidation products. ESI--MS/MS and MS(n) spectra were used to study oxycodone fragmentation in detail and to characterize the structures of oxidation products. The results show that the oxidation products were formed by addition of one or two oxygen atoms or by addition of three oxygen and two hydrogen atoms to oxycodone. The fragmentation of the oxidation products also shows that the aromatic ring oxidizes due to rupture of the C-3--C-4 bond during product formation.
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Affiliation(s)
- K Pennanen
- Division of Pharmaceutical Chemistry, Department of Pharmacy, PO Box 56, FIN-00014, University of Helsinki, Helsinki, Finland
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Evgen’ev MI, Budnikov GK. Electrochemical detection in high-performance liquid chromatography of organic compounds. JOURNAL OF ANALYTICAL CHEMISTRY 2000. [DOI: 10.1007/bf02757338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Haffen E, Paintaud G, Berard M, Masuyer C, Bechtel Y, Bechtel PR. On the assessment of drug metabolism by assays of codeine and its main metabolites. Ther Drug Monit 2000; 22:258-65. [PMID: 10850391 DOI: 10.1097/00007691-200006000-00005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Codeine and its main metabolites appear to have advantages for assessing drug metabolic phenotypes. The authors have further developed a high-performance liquid chromatography (HPLC) method for the quantification of codeine and six of its metabolites in urine. Quantification was performed by electrochemical detection for morphine, normorphine, morphine-6-glucuronide, and the internal standard 4-O-methyldopamine; and by ultraviolet detection for codeine, norcodeine, and morphine-3-glucuronide. The method had a detection limit of 2 nmol/L(-1) for morphine and normorphine, 4 nmol/L(-1) for morphine-6-glucuronide, 3 nmol/L for the internal standard, 20 nmol/L(-1) for morphine-3-glucuronide, and 60 nmol/L(-1) for codeine and norcodeine. The coefficients of variations were <9% for intraday and <10% for interday analyses. The recovery of codeine and its metabolites ranged from 55% (for morphine-3-glucuronide) to 90% (for codeine, norcodeine, morphine, and morphine-6-glucuronide). Eleven healthy volunteers were phenotyped for CYP2D6 using codeine as well as debrisoquine and dextromethorphan. Ten subjects were extensive metabolizers (EM) and one a poor metabolizer (PM) of codeine, debrisoquine, and dextromethorphan. Significant correlations between the metabolic ratios (MRs) of the different probe drugs were obtained (r2 > 0.95, p < 0.001). This HPLC method is simple, sensitive, accurate, and reproducible for assessing the CYP2D6 phenotype.
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Affiliation(s)
- E Haffen
- Department of Clinical Pharmacology, University Hospital of Besancon, France
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Chapter 1 Opiate agonists. ACTA ACUST UNITED AC 2000. [DOI: 10.1016/s1567-7192(00)80051-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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