1
|
Zhang C, Rodriguez E, Bi C, Zheng X, Suresh D, Suh K, Li Z, Elsebaei F, Hage DS. High performance affinity chromatography and related separation methods for the analysis of biological and pharmaceutical agents. Analyst 2018; 143:374-391. [PMID: 29200216 PMCID: PMC5768458 DOI: 10.1039/c7an01469d] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The last few decades have witnessed the development of many high-performance separation methods that use biologically related binding agents. The combination of HPLC with these binding agents results in a technique known as high performance affinity chromatography (HPAC). This review will discuss the general principles of HPAC and related techniques, with an emphasis on their use for the analysis of biological compounds and pharmaceutical agents. Various types of binding agents for these methods will be considered, including antibodies, immunoglobulin-binding proteins, aptamers, enzymes, lectins, transport proteins, lipids, and carbohydrates. Formats that will be discussed for these methods range from the direct detection of an analyte to indirect detection based on chromatographic immunoassays, as well as schemes based on analyte extraction or depletion, post-column detection, and multi-column systems. The use of biological agents in HPLC for chiral separations will also be considered, along with the use of HPAC as a tool to screen or study biological interactions. Various examples will be presented to illustrate these approaches and their applications in fields such as biochemistry, clinical chemistry, and pharmaceutical research.
Collapse
Affiliation(s)
- Chenhua Zhang
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588-0304, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
2
|
Li Z, Hage DS. Analysis of stereoselective drug interactions with serum proteins by high-performance affinity chromatography: A historical perspective. J Pharm Biomed Anal 2017; 144:12-24. [PMID: 28094095 PMCID: PMC5505820 DOI: 10.1016/j.jpba.2017.01.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/06/2017] [Accepted: 01/10/2017] [Indexed: 01/09/2023]
Abstract
The interactions of drugs with serum proteins are often stereoselective and can affect the distribution, activity, toxicity and rate of excretion of these drugs in the body. A number of approaches based on affinity chromatography, and particularly high-performance affinity chromatography (HPAC), have been used as tools to study these interactions. This review describes the general principles of affinity chromatography and HPAC as related to their use in drug binding studies. The types of serum agents that have been examined with these methods are also discussed, including human serum albumin, α1-acid glycoprotein, and lipoproteins. This is followed by a description of the various formats based on affinity chromatography and HPAC that have been used to investigate drug interactions with serum proteins and the historical development for each of these formats. Specific techniques that are discussed include zonal elution, frontal analysis, and kinetic methods such as those that make use of band-broadening measurements, peak decay analysis, or ultrafast affinity extraction.
Collapse
Affiliation(s)
- Zhao Li
- Department of Chemistry, University of Nebraska, Lincoln, NE, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska, Lincoln, NE, USA.
| |
Collapse
|
3
|
Nakhla DS, Hussein LA, Magdy N, Abdallah IA, Hassan HE. Precise simultaneous quantification of methadone and cocaine in rat serum and brain tissue samples following their successive i.p. administration. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1048:19-29. [PMID: 28192759 DOI: 10.1016/j.jchromb.2017.01.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 01/26/2017] [Accepted: 01/31/2017] [Indexed: 11/28/2022]
Abstract
A sensitive high-performance liquid chromatography (HPLC) assay with dual UV detection has been developed and validated for the simultaneous quantification of methadone and cocaine in rat serum and brain tissue samples. Liquid-liquid extraction using hexanes was applied for samples extraction with Levo-Tetrahydropalmatine (L-THP) as the internal standard. Chromatographic separation of the analytes was achieved on a reversed-phase Waters Symmetry® C18 column (150mm×4.6mm, 5μm). A gradient elution was employed with a mobile phase consisting of 5mM potassium phosphate containing 0.1% triethylamine (pH=6.5) (A) and acetonitrile (B) with a flow rate of 1mL/min. UV detection was employed at 215nm and 235nm for the determination of methadone and cocaine, respectively. The calibration curves were linear over the range of 0.05-10μg/mL for both methadone and cocaine. The assay was validated according to FDA guidelines for bioanalytical method validation and results were satisfactory and met FDA criteria. Inter-day accuracy values of serum and brain samples ranged from 96.97 to 105.59% while intra-day accuracy values ranged from 91.49 to 111.92%. Stability assays showed that both methadone and cocaine were stable during sample storage, preparation, and analytical procedures. The method was successfully used to analyze biological samples obtained from a drug- drug interaction pharmacokinetics (PK) study conducted in rats to investigate the effect of methadone on cocaine PK. Our method not only can be used for bioanalysis of samples obtained from rats but also can potentially be applied to human biological serum samples to monitor compliance to methadone maintenance therapy (MMT) and to detect possible cocaine-methadone co-abuse.
Collapse
Affiliation(s)
- David S Nakhla
- Department of Pharmaceutical Sciences, University of Maryland, School of Pharmacy, Baltimore, MD, United States; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Misr International University, Cairo, Egypt
| | - Lobna A Hussein
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - N Magdy
- Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Inas A Abdallah
- Department of Pharmaceutical Sciences, University of Maryland, School of Pharmacy, Baltimore, MD, United States; Department of Analytical Chemistry, Faculty of Pharmacy, University of Sadat City, Sadat City, Egypt
| | - Hazem E Hassan
- Department of Pharmaceutical Sciences, University of Maryland, School of Pharmacy, Baltimore, MD, United States; Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo, Egypt.
| |
Collapse
|
4
|
Abstract
The development of separation methods for the analysis and resolution of chiral drugs and solutes has been an area of ongoing interest in pharmaceutical research. The use of proteins as chiral binding agents in high-performance liquid chromatography (HPLC) has been an approach that has received particular attention in such work. This report provides an overview of proteins that have been used as binding agents to create chiral stationary phases (CSPs) and in the use of chromatographic methods to study these materials and protein-based chiral separations. The supports and methods that have been employed to prepare protein-based CSPs will also be discussed and compared. Specific types of CSPs that are considered include those that employ serum transport proteins (e.g., human serum albumin, bovine serum albumin, and alpha1-acid glycoprotein), enzymes (e.g., penicillin G acylase, cellobiohydrolases, and α-chymotrypsin) or other types of proteins (e.g., ovomucoid, antibodies, and avidin or streptavidin). The properties and applications for each type of protein and CSP will also be discussed in terms of their use in chromatography and chiral separations.
Collapse
Affiliation(s)
- Cong Bi
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Xiwei Zheng
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Shiden Azaria
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Sandya Beeram
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - Zhao Li
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| | - David S. Hage
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588-0304, USA
| |
Collapse
|
5
|
George R, Lobb M, Haywood A, Khan S, Hardy J, Good P, Hennig S, Norris R. Quantitative determination of the enantiomers of methadone in human plasma and saliva by chiral column chromatography coupled with mass spectrometric detection. Talanta 2016; 149:142-148. [DOI: 10.1016/j.talanta.2015.11.044] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 11/17/2015] [Accepted: 11/17/2015] [Indexed: 10/22/2022]
|
6
|
Mackuľak T, Birošová L, Bodík I, Grabic R, Takáčová A, Smolinská M, Hanusová A, Híveš J, Gál M. Zerovalent iron and iron(VI): Effective means for the removal of psychoactive pharmaceuticals and illicit drugs from wastewaters. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 539:420-426. [PMID: 26376114 DOI: 10.1016/j.scitotenv.2015.08.138] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Revised: 08/28/2015] [Accepted: 08/28/2015] [Indexed: 06/05/2023]
Abstract
Herein we report the analysis of 27 selected psychoactive compounds found in the wastewater of the largest suburb in the eastern part of Central Europe Bratislava—Petržalka, Slovakia. Thirteen of them (MDMA, methamphetamine, amphetamine, THC-COOH, benzoylecgonine, codeine, tramadol, venlafaxine, oxazepam, citalopram, methadone, EDDP, cocaine) were found in concentrations above 30 ng/L. These compoundswere selected for further monitoring. The possibility of complete degradation of these 13 substances by zerovalent iron and iron(VI) was studied in thewastewater from the Petržalka treatment plant. During the week the concentration of themajority of the studied compounds inwastewaterwas stable. Concentrations of MDMA, cocaine, tramadol, and oxazepam reached significantly higher levels during the weekend.Only about 10% removal efficiency for tramadol, venlafaxine, oxazepam, MDMA, citalopram, methadone, and EDDP was observed at the treatment plant. In contrast, methamphetamine, amphetamine, and codeine were removed with 68%, 83%, and 53% efficiency, respectively. The degradation of synthetic drugs (methamphetamine, cocaine, MDMA) in wastewater is limited, while cannabis (of natural biological origin) is degradedwith efficiency greater than 90%. After utilization of the Fenton reaction, its modification, and use of ferrate(VI), a high efficiency of eliminating all of these substances to values below the limit of detection was achieved.
Collapse
Affiliation(s)
- Tomáš Mackuľak
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia.
| | - Lucia Birošová
- Institute of Biochemistry, Nutrition and Health Protection, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Igor Bodík
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Roman Grabic
- University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zatisi 728/II, 389 01 Vodnany, Czech Republic
| | - Alžbeta Takáčová
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Miroslava Smolinská
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina B-2, 842 15 Bratislava, Slovakia
| | - Anna Hanusová
- Department of Sanitary and Environmental Engineering, Faculty of Civil Engineering, Slovak University of Technology, Radlinskeho 11, 810 05 Bratislava, Slovakia
| | - Ján Híveš
- Department of Inorganic Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| | - Miroslav Gál
- Department of Inorganic Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia
| |
Collapse
|
7
|
Mackuľak T, Birošová L, Gál M, Bodík I, Grabic R, Ryba J, Škubák J. Wastewater analysis: the mean of the monitoring of frequently prescribed pharmaceuticals in Slovakia. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:18. [PMID: 26650204 DOI: 10.1007/s10661-015-5011-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 11/25/2015] [Indexed: 05/25/2023]
Abstract
The estimation of medication use is based on the statistical data from pharmacies and hospitals. Excessive use or misuse of some compounds, especially psychoactive medications, has not yet been monitored in Slovakia. Wastewater analysis provides useful data about the medication use and misuse in individual regions. This study is focused on the analysis of 23 substances in the wastewaters of Slovakia. The monitoring programme has included stimulants, opioid and morphine derivatives, benzodiazepines, antidepressants, drug precursors and their metabolites. Urinary markers of these compounds were analysed at WWTP influent in seven regions (Bratislava, Košice, Zvolen, Banská Bystrica, Trenčín, Prešov a Piešťany) using LC-MS/MS technique. The analysis was performed from March to October 2013. The pattern in use of these compounds was also monitored. Tramadol and venlafaxine were found to be the most concentrated compounds among of all studied psychoactive pharmaceuticals. The highest specific loads of tramadol were detected in Piešťany (409 mg/day/1000 inhabitants) and Zvolen (366 mg/day/1000 inhabitants). There is a considerable number of spa facilities (hotels) situated in these cities and this fact contributes to a higher occurrence of these psychoactive compounds in respective wastewaters.
Collapse
Affiliation(s)
- Tomáš Mackuľak
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia.
| | - Lucia Birošová
- Institute of Biochemistry, Nutrition and Health Protection, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Miroslav Gál
- Department of Inorganic Technology, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Igor Bodík
- Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Roman Grabic
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in Ceske Budejovice, Zatisi 728/II, 389 01, Vodnany, Czech Republic
| | - Jozef Ryba
- Department Fibers and Textile Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Jaroslav Škubák
- Institute of Biochemistry, Nutrition and Health Protection, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| |
Collapse
|
8
|
Bouquié R, Hélène Hernando, Guillaume Deslandes, Mostefa Daho AB, Renaud C, Grall-Bronnec M, Dailly E, Jolliet P. Chiral on-line solid phase extraction coupled to liquid chromatography–tandem mass spectrometry assay for quantification of (R) and (S) enantiomers of methadone and its main metabolite in plasma. Talanta 2015; 134:373-378. [DOI: 10.1016/j.talanta.2014.11.052] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 11/17/2014] [Accepted: 11/22/2014] [Indexed: 11/28/2022]
|
9
|
Garby DM, Cheryk LA. Synthetic opioid analysis by LC-MS/MS. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2013; 902:65-73. [PMID: 22767108 DOI: 10.1007/978-1-61779-934-1_6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Determination of urinary drug concentrations can prove to be very useful in the monitoring of patients who are receiving a variety of synthetic opioids. Through the use of liquid chromatography-tandem mass spectrometry, the simultaneous measurement of synthetic opioids provides for smaller sample volume requirements along with gains in throughput and an increase in the sensitivity of the analysis.
Collapse
Affiliation(s)
- David M Garby
- Department of Laboratory Medicine, Mayo Medical Laboratories, Wilmington, MA, USA
| | | |
Collapse
|
10
|
Eichhorst JC, Etter ML, Hall PL, Lehotay DC. LC-MS/MS techniques for high-volume screening of drugs of abuse and target drug quantitation in urine/blood matrices. Methods Mol Biol 2013; 902:29-41. [PMID: 22767105 DOI: 10.1007/978-1-61779-934-1_3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
Liquid chromatography-tandem mass spectrometry, employing electrospray ionization (ESI), has been applied in the analysis of many drugs and drug metabolites. Sample preparation has been an important part of this technique when analyzing biological samples. Here we describe a high-volume urine screening technique for approximately 40 different drugs of abuse as well as methods for quantification of many other drugs in serum, plasma, and whole blood. These techniques can be used in many different settings from clinical and forensic toxicology examinations to pharmacokinetic studies. Sample preparation procedures range from simple "dilute and shoot" methods to more extensive solid-phase extraction techniques.
Collapse
Affiliation(s)
- Jeff C Eichhorst
- Saskatchewan Disease Control Laboratory, Saskatchewan Health, Regina, SK, Canada.
| | | | | | | |
Collapse
|
11
|
Shi CH, Zhang X, Suo H, Yin T, Xu H, Yuan B, Zhao Y. Simultaneous determination by LC-MS/MS of 25-methoxydammarane-3β,12β,20-triol epimers and active metabolites in rat plasma after intravenous administration. Xenobiotica 2013; 43:868-74. [DOI: 10.3109/00498254.2013.789149] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
12
|
Nie Y, Liu X, Yang X, Zhao Z. Review: Recent Application of Chiral Liquid Chromatography-Tandem Mass Spectrometric Methods for Enantiomeric Pharmaceutical and Biomedical Determinations. J Chromatogr Sci 2013; 51:753-63. [DOI: 10.1093/chromsci/bms209] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
13
|
Schwaninger AE, Meyer MR, Maurer HH. Chiral drug analysis using mass spectrometric detection relevant to research and practice in clinical and forensic toxicology. J Chromatogr A 2012; 1269:122-35. [DOI: 10.1016/j.chroma.2012.07.045] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2012] [Revised: 07/14/2012] [Accepted: 07/17/2012] [Indexed: 12/01/2022]
|
14
|
Holm KMD, Linnet K. Chiral Analysis of Methadone and its Main Metabolite, EDDP, in Postmortem Brain and Blood by Automated SPE and Liquid Chromatography-Mass Spectrometry. J Anal Toxicol 2012; 36:487-96. [DOI: 10.1093/jat/bks057] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
15
|
Cation-selective exhaustive injection and sweeping micellar electrokinetic chromatography for the analysis of methadone and its metabolites in serum of heroin addicts. J Chromatogr A 2011; 1218:6832-7. [DOI: 10.1016/j.chroma.2011.07.086] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2011] [Revised: 07/25/2011] [Accepted: 07/26/2011] [Indexed: 11/18/2022]
|
16
|
Michishita T, Franco P, Zhang T. New approaches of LC-MS compatible method development on α1-acid glycoprotein-based stationary phase for resolution of enantiomers by HPLC. J Sep Sci 2010; 33:3627-37. [DOI: 10.1002/jssc.201000627] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
17
|
Hagen NA, Moulin DE, Brasher PM, Biondo PD, Eliasziw M, Watanabe SM, Stiles CR. A formal feasibility study of sublingual methadone for breakthrough cancer pain. Palliat Med 2010; 24:696-706. [PMID: 20671005 DOI: 10.1177/0269216310375999] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We conducted a feasibility study of sublingual methadone for breakthrough cancer pain, to determine whether a larger, randomized trial was warranted, and to identify a study design that would be likely to succeed. From approximately 1930 patients in the initial pool, nine patients were enrolled. Five patients completed the study, generating data on 83 discrete episodes of breakthrough cancer pain at optimal dose. Mean pain intensity dropped by 1.7 points (on a 10 point numerical scale) within 10 min of sublingual methadone administration, and by 3.2 points after 15 min. No serious or severe toxicity was encountered. Based on the results of this feasibility study, a larger randomized clinical trial of sublingual methadone for breakthrough cancer pain using this trial model would not be successful. Extensive information obtained from small numbers of carefully studied patients provides proof of concept that sublingual methadone is effective, safe, and well tolerated.
Collapse
Affiliation(s)
- Neil A Hagen
- Alberta Health Services Cancer Care, Tom Baker Cancer Centre, Calgary, Alberta, Canada.
| | | | | | | | | | | | | |
Collapse
|
18
|
Wang SC, Ho IK, Wu SL, Liu SC, Kuo HW, Lin KM, Liu YL. Development of a method to measure methadone enantiomers and its metabolites without enantiomer standard compounds for the plasma of methadone maintenance patients. Biomed Chromatogr 2009; 24:782-8. [DOI: 10.1002/bmc.1363] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
19
|
Maquille A, Guillarme D, Rudaz S, Veuthey JL. High-Throughput Screening of Drugs of Abuse in Urine by Supported Liquid–Liquid Extraction and UHPLC Coupled to Tandem MS. Chromatographia 2009. [DOI: 10.1365/s10337-009-1337-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
20
|
Martins LF, Yegles M, Wennig R. Simultaneous enantioselective quantification of methadone and of 2-ethylidene-1,5-dimethyl-3,3-diphenyl-pyrrolidine in oral fluid using capillary electrophoresis. J Chromatogr B Analyt Technol Biomed Life Sci 2008; 862:79-85. [DOI: 10.1016/j.jchromb.2007.11.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2007] [Revised: 10/30/2007] [Accepted: 11/01/2007] [Indexed: 10/22/2022]
|
21
|
Mercolini L, Mandrioli R, Conti M, Leonardi C, Gerra G, Raggi MA. Simultaneous determination of methadone, buprenorphine and norbuprenorphine in biological fluids for therapeutic drug monitoring purposes. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 847:95-102. [PMID: 17046338 DOI: 10.1016/j.jchromb.2006.09.035] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2006] [Revised: 09/06/2006] [Accepted: 09/20/2006] [Indexed: 10/23/2022]
Abstract
Methadone and buprenorphine are two of the drugs most frequently used for abstinence from illicit opioids and in the treatment of pain. A sensitive and selective high-performance liquid chromatographic method with diode array detection for the simultaneous determination of methadone, buprenorphine and norbuprenorphine has been developed. Separation of the three analytes was obtained by using a reversed-phase column (C8, 250mmx4.6mm i.d., 5microm) and a mobile phase composed of 40% phosphate buffer containing triethylamine, 50% methanol and 10% acetonitrile (final apparent pH 6.0). Loxapine was used as the internal standard. An accurate pre-treatment procedure of biological samples was developed, using solid-phase extraction with C8 cartridges (100mg, 1mL) and needing small amounts of plasma or urine (300microL). The calibration curves were linear over a working range of 10.0-1500.0ng/mL for methadone and of 5.0-500.0ng/mL for buprenorphine and norbuprenorphine in both matrices. The limit of quantitation (LOQ) and the limit of detection (LOD) were 1.0 and 0.4ng/mL for methadone and 0.5 and 0.2ng/mL for both buprenorphine and norbuprenorphine, respectively. The method was successfully applied to the analysis of plasma and urine samples from patients undergoing treatment with these drugs. Precision and accuracy results were satisfactory and no interference from endogenous or exogenous compounds was found. The method is suitable for the simultaneous determination of methadone and buprenorphine in human plasma and urine for therapeutic drug monitoring purposes.
Collapse
Affiliation(s)
- Laura Mercolini
- Faculty of Pharmacy, Department of Pharmaceutical Sciences, Alma Mater Studiorum-University of Bologna, Via Belmeloro 6, I-40126 Bologna, Italy
| | | | | | | | | | | |
Collapse
|