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Development and validation of an LC-MS/MS method for the quantification of mescaline and major metabolites in human plasma. J Pharm Biomed Anal 2022; 220:114980. [DOI: 10.1016/j.jpba.2022.114980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/28/2022] [Accepted: 07/31/2022] [Indexed: 11/20/2022]
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2
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A Pharmacokinetic Study of Ephedrine and Pseudoephedrine after Oral Administration of Ojeok-San by Validated LC-MS/MS Method in Human Plasma. Molecules 2021; 26:molecules26226991. [PMID: 34834083 PMCID: PMC8622238 DOI: 10.3390/molecules26226991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 11/18/2021] [Accepted: 11/18/2021] [Indexed: 12/02/2022] Open
Abstract
A sensitive and reproducible liquid chromatography-tandem mass spectrometry (LC-MS/MS) system was developed and fully validated for the simultaneous determination of ephedrine and pseudoephedrine in human plasma after oral administration of the herbal prescription Ojeok-san (OJS); 2-phenylethylamine was used as the internal standard (IS). Both compounds presented a linear calibration curve (r2 ≥ 0.99) over a concentration range of 0.2–50 ng/mL. The developed method was fully validated in terms of selectivity, lower limit of quantitation, precision, accuracy, recovery, matrix effect, and stability, according to the regulatory guidelines from the U.S. Food and Drug Administration and the Korea Ministry of Food and Drug Safety. This validated method was successfully applied for the pharmacokinetic assessment of ephedrine and pseudoephedrine in 20 healthy Korean volunteers administered OJS.
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3
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Losacker M, Kraemer M, Philipsen A, Duecker K, Dreimueller N, Engelmann J, Roehrich J, Hess C. Enantioselective Quantification of Amphetamine and Metabolites in Serum Samples: Forensic Evaluation and Estimation of Consumption Time. Metabolites 2021; 11:metabo11080521. [PMID: 34436462 PMCID: PMC8400571 DOI: 10.3390/metabo11080521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 11/16/2022] Open
Abstract
In forensic toxicology, amphetamine intoxications represent one of the most common case groups and present difficult questions for toxicologists. Estimating the time of consumption and the current influence of the stimulant is particularly difficult when only total amphetamine concentrations are considered. Stereoselective analysis and the consideration of metabolites can provide valuable information to facilitate interpretation. An enantioselective liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for detection of amphetamine, norephedrine and 4-hydroxyamphetamine was developed. Validation showed satisfactory selectivity, sensitivity, linearity (0.5-250 ng/mL), precision and accuracy for all enantiomers. The method was applied to a collective of 425 forensic serum samples and 30 serum samples from psychiatric inpatients stating their last time of amphetamine consumption. Norephedrine and 4-hydroxyamphetamine were detected more frequently at higher amphetamine concentrations and at lower amphetamine (R)/(S) concentration ratios, possibly indicating recent consumption. Mean (R)/(S) ratio of amphetamine was 1.14, whereas higher ratios (mean 1.36) were found for amphetamine concentrations below 100 ng/mL. The (R)/(S) ratios of psychiatric inpatients significantly correlated with the reported time intervals to last consumption. The use of amphetamine (R)/(S) ratios and the simultaneous detection of metabolites are promising factors that can facilitate estimation of consumption time and current impairment.
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Affiliation(s)
- Moritz Losacker
- Department of Forensic Toxicology, Institute of Legal Medicine, University Medical Center Mainz, Am Pulverturm 3, D-55131 Mainz, Germany; (J.R.); (C.H.)
- Correspondence:
| | - Michael Kraemer
- Department of Forensic Toxicology, Institute of Legal Medicine, University Hospital Bonn, Stiftsplatz 12, D-53111 Bonn, Germany;
| | - Alexandra Philipsen
- Clinic and Polyclinic for Psychiatry and Psychotherapy, University Hospital Bonn, Venusberg Campus 1, D-53127 Bonn, Germany; (A.P.); (K.D.)
| | - Kristina Duecker
- Clinic and Polyclinic for Psychiatry and Psychotherapy, University Hospital Bonn, Venusberg Campus 1, D-53127 Bonn, Germany; (A.P.); (K.D.)
| | - Nadine Dreimueller
- Department of Psychiatry and Psychotherapy, University Medical Center Mainz, Untere Zahlbacher Str. 8, D-55131 Mainz, Germany; (N.D.); (J.E.)
| | - Jan Engelmann
- Department of Psychiatry and Psychotherapy, University Medical Center Mainz, Untere Zahlbacher Str. 8, D-55131 Mainz, Germany; (N.D.); (J.E.)
| | - Joerg Roehrich
- Department of Forensic Toxicology, Institute of Legal Medicine, University Medical Center Mainz, Am Pulverturm 3, D-55131 Mainz, Germany; (J.R.); (C.H.)
| | - Cornelius Hess
- Department of Forensic Toxicology, Institute of Legal Medicine, University Medical Center Mainz, Am Pulverturm 3, D-55131 Mainz, Germany; (J.R.); (C.H.)
- Reference Institute for Bioanalytics, Friesdorfer Str. 153, D-53175 Bonn, Germany
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4
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Psychoactive Substances of Natural Origin: Toxicological Aspects, Therapeutic Properties and Analysis in Biological Samples. Molecules 2021; 26:molecules26051397. [PMID: 33807728 PMCID: PMC7961374 DOI: 10.3390/molecules26051397] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 02/28/2021] [Accepted: 03/02/2021] [Indexed: 12/14/2022] Open
Abstract
The consumption of new psychoactive substances (NPSs) has been increasing, and this problem affects several countries worldwide. There is a class of NPSs of natural origin, consisting of plants and fungi, which have a wide range of alkaloids, responsible for causing relaxing, stimulating or hallucinogenic effects. The consumption of some of these substances is prompted by religious beliefs and cultural reasons, making the legislation very variable or even ambiguous. However, the abusive consumption of these substances can present an enormous risk to the health of the individuals, since their metabolism and effects are not yet fully known. Additionally, NPSs are widely spread over the internet, and their appearance is very fast, which requires the development of sophisticated analytical methodologies, capable of detecting these compounds. Thus, the objective of this work is to review the toxicological aspects, traditional use/therapeutic potential and the analytical methods developed in biological matrices in twelve plant specimens (Areca catechu, Argyreia nervosa, Ayahuasca, Catha edulis, Datura stramonium, Lophophora williamsii, Mandragora officinarum, Mitragyna speciosa, Piper methysticum Forst, Psilocybe, Salvia divinorum and Tabernanthe iboga).
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5
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Bin Jardan YA, Mohamed K, Abbas N, El-Gendy M, Alsaif N, Alanazi M, Mohammed M, Abounassif M, Hefnawy M. Development and validation of GC-MS method for determination of methcathinone and its main metabolite in mice plasma and brain tissue after SPE: Pharmacokinetic and distribution study. J Pharm Biomed Anal 2020; 194:113798. [PMID: 33298381 DOI: 10.1016/j.jpba.2020.113798] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/19/2020] [Accepted: 11/21/2020] [Indexed: 02/02/2023]
Abstract
Only focusing on the plasma levels is inadequate for the full consideration of the physiological disposition of illicit drugs in vivo. Therefore, we conducted the inclusive study on the in vivo dynamic process of intraperitoneal administration of methcathinone (MET), a well-known member of the synthetic cathinone derivatives, which is structurally similar to amphetamine analogs. This study described a validated, selective and sensitive GC-MS method for the simultaneous quantification of MET and its main metabolite, ephedrine (EPD), in the plasma and brain tissue of mice, after solid phase extraction (SPE). Ephedrine-d3 was used as an internal standard (IS). The developed method was validated following US-FDA guidelines within a concentration range of 5-1000 ng/mL for both drugs (r2 > 0.998) in the mice plasma and brain. The recoveries of MET and EPD from the mice plasma and brain ranged from 108.5 to 112.1%. The intra- and inter-day RSDs were ≤ 11.0 %. The proposed method was applied, for the first time, to investigate the pharmacokinetic (PK) and distribution study of MET and EPD following intraperitoneal administration of MET (1.4 mg/kg) to Swiss albino mice. The results exhibited that the Cmax and Tmax of MET in mice plasma was 517.1 ng/mL and 15 min as compared to 3.6 ng/mL and 2 h of EPD. Moreover, MET rapidly passed the blood brain barrier with Cmax of 1444.5 ng/mL achieved at 15 min, whereas, EPD monitored Cmax of 43.6 ng/mL at 4 h in mice brain. The highest concentration of MET in the mice brain followed by plasma was reported, with a necessity to perform more detailed clinical investigations.
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Affiliation(s)
- Yousef A Bin Jardan
- Department of Pharmaceutics, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451, Saudi Arabia
| | - Khaled Mohamed
- Forensic Sciences Department, College of Criminal Justice, Naif Arab University for Security Sciences (NAUSS), Riyadh, Saudi Arabia
| | - Nagwan Abbas
- Forensic Sciences Department, College of Criminal Justice, Naif Arab University for Security Sciences (NAUSS), Riyadh, Saudi Arabia
| | - Manal El-Gendy
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451, Saudi Arabia
| | - Nawaf Alsaif
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451, Saudi Arabia
| | - Mohammed Alanazi
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451, Saudi Arabia
| | - Mostafa Mohammed
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451, Saudi Arabia; National Organization for Drug Control and Research, P.O. Box 29, Cairo, Egypt
| | - Mohammed Abounassif
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451, Saudi Arabia
| | - Mohamed Hefnawy
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P. O. Box 2457, Riyadh, 11451, Saudi Arabia; Department of Analytical Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
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6
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Cláudia M, Pedro A, Tiago R, Francisco CR, Eugenia G. Determination of New Psychoactive Substances in Whole Blood Using Microwave Fast Derivatization and Gas Chromatography/Mass Spectrometry. J Anal Toxicol 2020; 44:92-102. [PMID: 31436798 DOI: 10.1093/jat/bkz053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 04/15/2019] [Accepted: 06/04/2019] [Indexed: 01/20/2023] Open
Abstract
The production and consumption of new psychoactive substances (NPSs) has been raising a major concern worldwide. Due to easy access and available information, many NPSs continue to be synthesized with an alarming increase of those available to purchase, despite all the control efforts created. A new analytical method was developed and validated to determine a group of phenethylamines and synthetic cathinones: cathinone, flephedrone, buphedrone, 4-MTA, α-PVP, methylone, 2C-P, ethylone, pentylone, MDPV and bromo-dragonFLY in whole blood. A mixed-mode solid phase extraction was applied to 250 μL of sample, and the extracts were derivatized with fast microwave technique before being analyzed by gas chromatography-mass spectrometry (GC-MS). The validation procedure followed the Scientific Working Group for Forensic Toxicology (SWGTOX) guidelines with parameters that included selectivity, linearity, limits of detection and quantification, intra- and inter-day precision and accuracy, recoveries and stability. The method presented linearity between 5 and 500 ng/mL for cathinone, buphedrone, 4-MTA, methylone, 2C-P and bromo-dragonFLY, 10-500 ng/mL for flephedrone, ethylone, pentylone and MDPV, and 40-500 ng/mL for α-PVP, with determination coefficients above 0.99 for all analytes. Recoveries ranged between 70.3% and 116.6%, and regarding intra- and inter-day precision, the relative mean errors were typically lower than 8.6%. The method was successfully applied to over 100 authentic samples from the Laboratory of Chemistry and Forensic Toxicology, Centre Branch, of the National Institute of Legal Medicine and Forensic Sciences, Portugal.
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Affiliation(s)
- Margalho Cláudia
- Instituto Nacional de Medicina Legal e Ciências Forenses - Delegação do Centro, Serviço de Química e Toxicologia Forenses, Largo da Sé Nova, 3000-213, Coimbra Portugal
| | - Almeida Pedro
- Instituto Nacional de Medicina Legal e Ciências Forenses - Delegação do Centro, Serviço de Química e Toxicologia Forenses, Largo da Sé Nova, 3000-213, Coimbra Portugal.,Centro de Investigação em Ciências da Saúde, Faculdade de Ciências da Saúde da Universidade da Beira Interior (CICS-UBI), Avenida Infante D. Henrique, 6201-506, Covilhã, Portugal
| | - Rosado Tiago
- Centro de Investigação em Ciências da Saúde, Faculdade de Ciências da Saúde da Universidade da Beira Interior (CICS-UBI), Avenida Infante D. Henrique, 6201-506, Covilhã, Portugal.,Laboratório de Fármaco-Toxicologia-UBIMedical, Universidade da Beira Interior, EM506, 6200-284, Covilhã, Portugal
| | - Corte Real Francisco
- Instituto Nacional de Medicina Legal e Ciências Forenses - Delegação do Centro, Serviço de Química e Toxicologia Forenses, Largo da Sé Nova, 3000-213, Coimbra Portugal
| | - Gallardo Eugenia
- Centro de Investigação em Ciências da Saúde, Faculdade de Ciências da Saúde da Universidade da Beira Interior (CICS-UBI), Avenida Infante D. Henrique, 6201-506, Covilhã, Portugal.,Laboratório de Fármaco-Toxicologia-UBIMedical, Universidade da Beira Interior, EM506, 6200-284, Covilhã, Portugal
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7
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High‐throughput doping control analysis of 28 amphetamine‐type stimulants in equine plasma using hydrophilic interaction liquid chromatography–tandem mass spectrometry. Drug Test Anal 2018; 11:441-454. [DOI: 10.1002/dta.2516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 06/14/2018] [Accepted: 09/26/2018] [Indexed: 11/07/2022]
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8
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Mohamed KM, Al-Hazmi AH, Alasiri AM, Ali MES. A GC–MS Method for Detection and Quantification of Cathine, Cathinone, Methcathinone and Ephedrine in Oral Fluid. J Chromatogr Sci 2016; 54:1271-6. [DOI: 10.1093/chromsci/bmw082] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Indexed: 11/14/2022]
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9
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Margalho C, Castanheira A, Real FC, Gallardo E, López-Rivadulla M. Determination of "new psychoactive substances" in postmortem matrices using microwave derivatization and gas chromatography-mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1020:14-23. [PMID: 26994330 DOI: 10.1016/j.jchromb.2016.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 03/01/2016] [Accepted: 03/02/2016] [Indexed: 01/07/2023]
Abstract
Despite worldwide efforts aiming to ban the marketing and subsequent abuse of psychoactive substances such as synthetic cathinones and phenethylamines, there has been an alarming growth of both in recent years. Different compounds similar to those already existing are continuously appearing in the market in order to circumvent the legislation. An analytical methodology has been validated for qualitative and quantitative determinations of D-cathine (D-norpseudoehedrine), ephedrine, methcathinone, 1-(4-methoxyphenyl)-propan-2-amine (PMA), mephedrone, methedrone, 2,5-dimethoxy-4-methylamphetamine (DOM), 4-bromo-2,5-dimethoxyamphetamine (DOB), 2,5-dimethoxyphenethylamine (2C-H), 4-bromo-2,5-dimethoxyphenethylamine (2C-B), 4-iodo-2,5-dimethoxyphenethylamine (2C-I), 2-[2,5-dimethoxy-4-(ethylthio)phenyl]ethanamine (2C-T-2), 2,5-dimethoxy-4-isopropylthiophenethylamine (2C-T-4) and 2-[2,5-dimethoxy-4-(propylthio)phenyl]ethanamine (2C-T-7), in low volumes of vitreous humor (100 μL), pericardial fluid (250 μL) and whole blood (250 μL), using deutered amphetamine, ephedrine and mephedrone as internal standards. The validation parameters included selectivity, linearity and limits of detection and quantification, intra- and interday precision and trueness, recovery and stability. The method included mixed-mode solid phase extraction, followed by microwave fast derivatization and analysis by gas chromatography-mass spectrometry operated in selected ion monitoring mode. The procedure was linear between 5 and 600 ng/mL, with determination coefficients higher than 0.99 for all analytes. Intra- and interday precision ranged from 0.1 to 13.6%, while accuracy variability was within 80-120% interval from the nominal concentration at all studied levels. The extraction efficiencies ranged from 76.6 to 112.8%. Stability was considered acceptable for all compounds in the studied matrices. The developed assay was applied to authentic samples of the Laboratory of Chemistry and Forensic Toxicology, Centre Branch, of the National Institute of Legal Medicine and Forensic Sciences, Portugal.
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Affiliation(s)
- Cláudia Margalho
- Instituto Nacional de Medicina Legal e Ciências Forenses, I.P. (INMLCF, I.P.)-Delegação do Centro, Coimbra, Portugal.
| | - Alice Castanheira
- Instituto Nacional de Medicina Legal e Ciências Forenses, I.P. (INMLCF, I.P.)-Delegação do Centro, Coimbra, Portugal
| | - Francisco Corte Real
- Instituto Nacional de Medicina Legal e Ciências Forenses, I.P. (INMLCF, I.P.)-Delegação do Centro, Coimbra, Portugal; Faculdade de Medicina da Universidade de Coimbra, Portugal
| | - Eugenia Gallardo
- CICS-UBI-Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Portugal
| | - Manuel López-Rivadulla
- Servicio de Toxicología Forense, Instituto Universitario de Ciencias Forenses Universidad de Santiago de Compostela, Spain
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Miao L, Liu Y, Li H, Qi Y, Lu F. Two-dimensional correlation infrared spectroscopy applied to the identification of ephedrine and pseudoephedrine in illegally adulterated slimming herbal products. Drug Test Anal 2016; 9:221-229. [DOI: 10.1002/dta.1963] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 01/20/2016] [Accepted: 01/21/2016] [Indexed: 12/11/2022]
Affiliation(s)
- Li Miao
- Department of Pharmaceutical Analysis, School of Pharmacy; Second Military Medical University; Shanghai 200433 China
| | - Yan Liu
- Department of Pharmaceutical Analysis, School of Pharmacy; Second Military Medical University; Shanghai 200433 China
| | - Hao Li
- Department of Pharmaceutical Analysis, School of Pharmacy; Second Military Medical University; Shanghai 200433 China
| | - Yunpeng Qi
- Department of Pharmaceutical Analysis, School of Pharmacy; Second Military Medical University; Shanghai 200433 China
| | - Feng Lu
- Department of Pharmaceutical Analysis, School of Pharmacy; Second Military Medical University; Shanghai 200433 China
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Smith JP, Sutcliffe OB, Banks CE. An overview of recent developments in the analytical detection of new psychoactive substances (NPSs). Analyst 2016; 140:4932-48. [PMID: 26031385 DOI: 10.1039/c5an00797f] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
New psychoactive substances (NPSs), sometimes referred to as "legal highs" in more colloquial environments/the media, are a class of compounds that have been recently made available for abuse (not necessarily recently discovered) which provide similar effects to the traditional well studied illegal drugs but are not always controlled under existing local, regional or international drug legislation. Following an unprecedented increase in the number of NPSs in the last 5 years (with 101 substances discovered for the first time in 2014 alone) its, occasionally fatal, consequences have been extensively reported in the media. Such NPSs are typically marketed as 'not for human consumption' and are instead labelled and sold as plant food, bath salts as well as a whole host of other equally nondescript aliases in order to bypass legislative controls. NPSs are a new multi-disciplinary research field with the main emphasis in terms of forensic identification due to their adverse health effects, which can range from minimal to life threatening and even fatalities. In this mini-review we overview this recent emerging research area of NPSs and the analytical approaches reported to provide detection strategies as well as detailing recent reports towards providing point-of-care/in-the-field NPS ("legal high") sensors.
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Affiliation(s)
- Jamie P Smith
- Faculty of Science and Engineering, School of Science and the Environment, Division of Chemistry and Environmental Science, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, UK.
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Urine Mescaline Screening With a Biochip Array Immunoassay and Quantification by Gas Chromatography-Mass Spectrometry. Ther Drug Monit 2015; 37:805-11. [PMID: 25992796 DOI: 10.1097/ftd.0000000000000220] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Mescaline, the primary psychoactive chemical in peyote cactus, has been consumed for thousands of years in ancient religious ceremonies. The US military wanted to determine if mescaline intake was a problem for personnel readiness. Twenty thousand seventeen urine specimens negative for cannabinoids, cocaine, opiates, and amphetamines were tested for mescaline with the Randox Drugs of Abuse V (DOA-V) biochip array immunoassay at the manufacturer's recommended cutoff of 6 mcg/L. A sensitive and specific method for mescaline quantification in urine was developed and fully validated. Extracted analytes were derivatized with pentafluoropropionic anhydride and pentafluoropropanol and quantified by gas chromatography-mass spectrometry (GC/MS) with electron impact ionization. Standard curves, using linear least squares regression with 1/x weighting, were linear from 1 to 250 mcg/L with coefficients of determination >0.994. Intra- and inter-assay imprecision was <4.4 coefficient of variation (%CV), with accuracies >90.4%. Mean extraction efficiencies were >92.0% across the linear range. This fully validated method was applied for the confirmation of urinary mescaline in 526 presumptive-positive specimens and 198 randomly selected presumptive-negative specimens at the manufacturer's 6 mcg/L cutoff. No specimen confirmed positive at the GC/MS limit of quantification of 1 mcg/L. Results indicated that during this time frame, there was insufficient mescaline drug use in the military to warrant routine screening in the drug testing program. However, mescaline stability, although assessed, could have contributed to lower prevalence. We also present a validated GC/MS method for mescaline quantification in urine for reliable confirmation of suspected mescaline intake.
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13
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Detection and quantification of 56 new psychoactive substances in whole blood and urine by LC–MS/MS. Bioanalysis 2015; 7:1119-36. [DOI: 10.4155/bio.15.48] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: New psychoactive substances (NPS) have become increasingly prevalent and are sold in internet shops as ‘bath salts’ or ‘research chemicals’ and comprehensive bioanalytical methods are needed for their detection. Methodology: We developed and validated a method using LC and MS/MS to quantify 56 NPS in blood and urine, including amphetamine derivatives, 2C compounds, aminoindanes, cathinones, piperazines, tryptamines, dissociatives and others. Instrumentation included a Synergi Polar-RP column (Phenomenex) and a 3200 QTrap mass spectrometer (AB Sciex). Run time was 20 min. Conclusion: A novel method is presented for the unambiguous identification and quantification of 56 NPS in blood and urine samples in clinical and forensic cases, e.g., intoxications or driving under the influence of drugs.
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Kruve A, Rebane R, Kipper K, Oldekop ML, Evard H, Herodes K, Ravio P, Leito I. Tutorial review on validation of liquid chromatography–mass spectrometry methods: Part I. Anal Chim Acta 2015; 870:29-44. [DOI: 10.1016/j.aca.2015.02.017] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 01/31/2015] [Accepted: 02/09/2015] [Indexed: 12/11/2022]
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15
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Tutorial review on validation of liquid chromatography–mass spectrometry methods: Part II. Anal Chim Acta 2015; 870:8-28. [DOI: 10.1016/j.aca.2015.02.016] [Citation(s) in RCA: 154] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 02/09/2015] [Indexed: 11/17/2022]
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16
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Tang MH, Ching C, Lee CY, Lam YH, Mak TW. Simultaneous detection of 93 conventional and emerging drugs of abuse and their metabolites in urine by UHPLC-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 969:272-84. [DOI: 10.1016/j.jchromb.2014.08.033] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 07/24/2014] [Accepted: 08/25/2014] [Indexed: 11/17/2022]
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17
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Smith JP, Metters JP, Khreit OIG, Sutcliffe OB, Banks CE. Forensic Electrochemistry Applied to the Sensing of New Psychoactive Substances: Electroanalytical Sensing of Synthetic Cathinones and Analytical Validation in the Quantification of Seized Street Samples. Anal Chem 2014; 86:9985-92. [DOI: 10.1021/ac502991g] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jamie P. Smith
- Faculty of Science
and Engineering, School of Chemistry and the Environment, Division
of Chemistry and Environmental Science, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, Lancashire, U.K
| | - Jonathan P. Metters
- Faculty of Science
and Engineering, School of Chemistry and the Environment, Division
of Chemistry and Environmental Science, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, Lancashire, U.K
| | - Osama I. G. Khreit
- Strathclyde Institute
of Pharmacy and Biomedical
Sciences, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Oliver B. Sutcliffe
- Faculty of Science
and Engineering, School of Chemistry and the Environment, Division
of Chemistry and Environmental Science, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, Lancashire, U.K
| | - Craig E. Banks
- Faculty of Science
and Engineering, School of Chemistry and the Environment, Division
of Chemistry and Environmental Science, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, Lancashire, U.K
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Temerdashev AZ, Grigor’ev IM, Rybal’chenko IV. Evolution of new narcotic substances and methods of their determination. JOURNAL OF ANALYTICAL CHEMISTRY 2014. [DOI: 10.1134/s1061934814090111] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Li X, Uboh CE, Soma LR, Liu Y, Guan F, Aurand CR, Bell DS, You Y, Chen J, Maylin GA. Sensitive hydrophilic interaction liquid chromatography/tandem mass spectrometry method for rapid detection, quantification and confirmation of cathinone-derived designer drugs for doping control in equine plasma. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2014; 28:217-229. [PMID: 24338970 DOI: 10.1002/rcm.6778] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 10/29/2013] [Accepted: 10/31/2013] [Indexed: 06/03/2023]
Abstract
RATIONALE Cathinone derivatives are new amphetamine-like stimulants that can evade detection when presently available methods are used for doping control. To prevent misuse of these banned substances in racehorses, development of a liquid chromatography/tandem mass spectrometry (LC/MS/MS) method became the impetus for undertaking this study. METHODS Analytes were recovered via liquid-liquid extraction using methyl tert-butyl ether. Analyte separation was achieved on a hydrophilic interaction column using liquid chromatography and mass analysis was performed on a QTRAP mass spectrometer in positive electrospray ionization (ESI) mode with multiple reaction monitoring (MRM). Analyte identification was carried out by screening for a specified MRM transition. Quantification was conducted using an internal standard. Confirmation was performed by establishing a match in retention time and ion intensity ratios comparison. RESULTS The method was linear over the range 0.2-50 ng/mL. The specificity was evaluated by analysis of six different batches of blank plasma and those spiked with each analyte (0.2 ng/mL). The recovery of analytes from plasma at three different concentrations was >70%. The limits of detection, quantification and confirmation were 0.02-0.05, 0.2-1.0 and 0.2-10 ng/mL, respectively. The matrix effect was insignificant. The intra-day and inter-day precision were 1.94-12.08 and 2.58-13.32%, respectively. CONCLUSIONS The method is routinely employed in screening for the eleven analytes in post-competition samples collected from racehorses in Pennsylvania to enforce the ban on the use of these performance-enhancing agents in racehorses. The method is sensitive, fast, effective and reliably reproducible.
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Affiliation(s)
- Xiaoqing Li
- University of Pennsylvania, School of Veterinary Medicine, Department of Clinical Studies, New Bolton Center Campus, Kennett Square, PA, 19348, USA
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Smith JP, Metters JP, Irving C, Sutcliffe OB, Banks CE. Forensic electrochemistry: the electroanalytical sensing of synthetic cathinone-derivatives and their accompanying adulterants in “legal high” products. Analyst 2014; 139:389-400. [DOI: 10.1039/c3an01985c] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Liu L, Wen Y, Liu K, Sun L, Lu Y, Yin Z. Simultaneous determination of a broad range of cardiovascular drugs in plasma with a simple and efficient extraction/clean up procedure and chromatography-mass spectrometry analysis. RSC Adv 2014. [DOI: 10.1039/c4ra01045k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A simple, easy to use and efficient method was described for simultaneous determination of ten cardiovascular drugs with a broad range of physicochemical properties in rat plasma via online SPE and HPLC-MS/MS.
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Affiliation(s)
- Lei Liu
- College of Pharmacy & State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071, PR China
| | - Yabin Wen
- College of Life Science
- Nankai University
- Tianjin 300071, PR China
| | - Kangning Liu
- College of Pharmacy & State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071, PR China
| | - Liang Sun
- College of Pharmacy & State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071, PR China
| | - Yaxin Lu
- College of Pharmacy & State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071, PR China
| | - Zheng Yin
- College of Pharmacy & State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Tianjin 300071, PR China
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Glennon RA. Bath salts, mephedrone, and methylenedioxypyrovalerone as emerging illicit drugs that will need targeted therapeutic intervention. ADVANCES IN PHARMACOLOGY (SAN DIEGO, CALIF.) 2014; 69:581-620. [PMID: 24484988 PMCID: PMC4471862 DOI: 10.1016/b978-0-12-420118-7.00015-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
The term "synthetic cathinones" is fairly new, but, although the abuse of synthetic cathinones is a recent problem, research on cathinone analogs dates back >100 years. One structural element cathinone analogs have in common is an α-aminophenone moiety. Introduction of amine and/or aryl substituents affords a large number of agents. Today, >40 synthetic cathinones have been identified on the clandestine market and many have multiple "street names." Many cathinone analogs, although not referred to as such until the late 1970s, were initially prepared as intermediates in the synthesis of ephedrine analogs. The cathinones do not represent a pharmacologically or mechanistically homogeneous class of agents. Currently abused synthetic cathinones are derived from earlier agents and seem to produce their actions primarily via the dopamine, norepinephrine, and/or serotonin transporter; that is, they either release and/or inhibit the reuptake of one or more of these neurotransmitters. The actions of these agents can resemble those of central stimulants such as methamphetamine, cocaine, and/or empathogens such as 1-(3,4-methylenedioxyphenyl)-2-aminopropane (Ecstasy) and/or produce other effects. Side effects are primarily of a neurological and/or cardiovascular nature. The use of the "and/or" term is emphasized because synthetic cathinones represent a broad class of agents that produce a variety of actions; the agents cannot be viewed as being pharmacologically equivalent. Until valid structure-activity relationships are formulated for each behavioral/mechanistic action, individual synthetic cathinones remain to be evaluated on a case-by-case basis. Treatment of synthetic cathinone intoxication requires more "basic science" research. At this time, treatment is mostly palliative.
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Affiliation(s)
- Richard A. Glennon
- Department of Medicinal Chemistry, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia 23298-0540 USA
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Role of LC-MS/MS in hair testing for the determination of common drugs of abuse and other psychoactive drugs. Bioanalysis 2013; 5:1919-38. [PMID: 23905865 DOI: 10.4155/bio.13.132] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Hair testing has been used in toxicological investigations for the last two decades, but only recently a remarkable extension of hair analysis to a variety of application fields was observed, besides drug abuse recognition. The dramatic improvements of LC-MS/MS instrumentation make the detection of tiny amounts of almost whatever drug in hair possible, even after single-dose intake. The progresses observed during the last 5 years in the detection of psychoactive substances in hair are reviewed herein. The literature is partitioned according to the target compounds, namely traditional drugs of abuse, new psychoactive substances and pharmaceutical psychoactive substances. The LC-MS/MS methods presented are addressed to determine a single class of drugs, with the primary aim of accurate quantitation, or to perform multiclass analysis, for rapid and effective screening protocols.
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The rapid identification and quantification of iso-α-acids and reduced iso-α-acids in blood using UHPLC-MS/MS: validation of a novel marker for beer consumption. Anal Bioanal Chem 2013; 405:9755-67. [DOI: 10.1007/s00216-013-7413-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2013] [Revised: 09/25/2013] [Accepted: 10/02/2013] [Indexed: 11/25/2022]
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25
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Petruczynik A, Waksmundzka-Hajnos M. High performance liquid chromatography of selected alkaloids in ion-exchange systems. J Chromatogr A 2013; 1311:48-54. [DOI: 10.1016/j.chroma.2013.06.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 06/12/2013] [Accepted: 06/14/2013] [Indexed: 10/26/2022]
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Dziadosz M, Weller JP, Klintschar M, Teske J. Scheduled multiple reaction monitoring algorithm as a way to analyse new designer drugs combined with synthetic cannabinoids in human serum with liquid chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 929:84-9. [DOI: 10.1016/j.jchromb.2013.04.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 04/05/2013] [Accepted: 04/12/2013] [Indexed: 10/26/2022]
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27
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New challenges and innovation in forensic toxicology: Focus on the “New Psychoactive Substances”. J Chromatogr A 2013; 1287:84-95. [DOI: 10.1016/j.chroma.2012.12.049] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 12/20/2012] [Accepted: 12/21/2012] [Indexed: 11/18/2022]
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Gambelunghe C, Marsili R, Aroni K, Bacci M, Rossi R. GC-MS and GC-MS/MS in PCI Mode Determination of Mescaline in Peyote Tea and in Biological Matrices. J Forensic Sci 2012; 58:270-8. [DOI: 10.1111/j.1556-4029.2012.02249.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 10/12/2011] [Accepted: 10/23/2011] [Indexed: 11/28/2022]
Affiliation(s)
- Cristiana Gambelunghe
- Department of Clinical and Experimental Medicine, Division of Legal and Sports Medicine; University of Perugia; Padiglione W, via E. dal Pozzo; 06123; Perugia; Italy
| | - Remo Marsili
- Institute of Forensic Medicine; Catholic University of the Sacred Heart; L.go F.Vito; 1-00168; Rome; Italy
| | - Kyriaki Aroni
- Department of Clinical and Experimental Medicine, Division of Legal and Sports Medicine; University of Perugia; Padiglione W, via E. dal Pozzo; 06123; Perugia; Italy
| | - Mauro Bacci
- Department of Clinical and Experimental Medicine, Division of Legal and Sports Medicine; University of Perugia; Padiglione W, via E. dal Pozzo; 06123; Perugia; Italy
| | - Riccardo Rossi
- Institute of Forensic Medicine; Catholic University of the Sacred Heart; L.go F.Vito; 1-00168; Rome; Italy
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Wong CHF, Ho ENM, Kwok WH, Leung DKK, Leung GNW, Tang FPW, Wong ASY, Wong JKY, Yu NH, Wan TSM. Interconversion of ephedrine and pseudoephedrine during chemical derivatization. Drug Test Anal 2012; 4:1028-33. [PMID: 22733708 DOI: 10.1002/dta.1384] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Revised: 04/19/2012] [Accepted: 05/22/2012] [Indexed: 11/09/2022]
Abstract
Gas chromatography-mass spectrometry (GC-MS) analysis after heptafluorobutyric anhydride (HFBA) derivatization was one of the published methods used for the quantification of ephedrine (EP) and pseudoephedrine (PE) in urine. This method allows the clear separation of the derivatized diastereoisomers on a methyl-silicone-based column. Recently the authors came across a human urine sample with apparently high levels (µg/ml) of EP and PE upon initial screening. However, duplicate analyses of this sample using the HFBA-GC-MS method revealed an unusual discrepancy in the estimated levels of EP and PE, with the area response ratios of EP/PE at around 29% on one occasion and around 57% on another. The same sample was re-analyzed for EP and PE using other techniques, including GC-MS after trimethylsilylation and ultra-high-performance liquid chromatography-tandem mass spectrometry. Surprisingly, the concentration of EP in the sample was determined to be at least two orders of magnitude less than what was observed with the HFBA-GC-MS method. A thorough investigation was then conducted, and the results showed that both substances could interconvert during HFBA derivatization. Similar diastereoisomeric conversion was also observed using other fluorinated acylating agents (e.g. pentafluoropropionic anhydride and trifluoroacetic anhydride). The extent of interconversion was correlated with the degree of fluorination of the acylating agents, with HFBA giving the highest conversion. This conversion has never been reported before. A mechanism for the interconversion was proposed. These findings indicated that fluorinated acylating agents should not be used for the unequivocal identification or quantification of EP and PE as the results obtained can be erroneous.
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Affiliation(s)
- Colton H F Wong
- Racing Laboratory, The Hong Kong Jockey Club, Sha Tin, NT, Hong Kong, China.
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Analysis of alkaloids from different chemical groups by different liquid chromatography methods. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0037-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractAlkaloids are biologically active compounds widely used as pharmaceuticals and synthesised as secondary methabolites in plants. Many of these compounds are strongly toxic. Therefore, they are often subject of scientific interests and analysis. Since alkaloids — basic compounds appear in aqueous solutions as ionized and unionized forms, they are difficult for chromatographic separation for peak tailing, poor systems efficiency, poor separation and poor column-to-column reproducibility. For this reason it is necessity searching of more suitable chromatographic systems for analysis of the compounds. In this article we present an overview on the separation of selected alkaloids from different chemical groups by liquid chromatography thus indicating the range of useful methods now available for alkaloid analysis. Different selectivity, system efficiency and peaks shape may be achieved in different LC methods separations by use of alternative stationary phases: silica, alumina, chemically bonded stationary phases, cation exchange phases, or by varying nonaqueous or aqueous mobile phase (containing different modifier, different buffers at different pH, ion-pairing or silanol blocker reagents). Developments in TLC (NP and RP systems), HPLC (NP, RP, HILIC, ion-exchange) are presented and the advantages of each method for alkaloids analysis are discussed.
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Ammann J, McLaren JM, Gerostamoulos D, Beyer J. Detection and Quantification of New Designer Drugs in Human Blood: Part 1 - Synthetic Cannabinoids. J Anal Toxicol 2012; 36:372-80. [DOI: 10.1093/jat/bks048] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ammann D, McLaren JM, Gerostamoulos D, Beyer J. Detection and Quantification of New Designer Drugs in Human Blood: Part 2 - Designer Cathinones. J Anal Toxicol 2012; 36:381-9. [DOI: 10.1093/jat/bks049] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Peters FT, Remane D. Aspects of matrix effects in applications of liquid chromatography–mass spectrometry to forensic and clinical toxicology—a review. Anal Bioanal Chem 2012; 403:2155-72. [DOI: 10.1007/s00216-012-6035-2] [Citation(s) in RCA: 122] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 02/22/2012] [Accepted: 04/06/2012] [Indexed: 11/28/2022]
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Kassim S, Hawash A, Johnston A, Croucher R. Validation of self-reported khat chewing amongst khat chewers: an exploratory study. JOURNAL OF ETHNOPHARMACOLOGY 2012; 140:193-196. [PMID: 22244798 DOI: 10.1016/j.jep.2011.12.040] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2011] [Revised: 11/25/2011] [Accepted: 12/22/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Khat chewing amongst the UK communities originating from Yemen and the East African coast is suggested to create dependency through its main stimulant components (cathinone, norephedrine and norpseudoephedrine) on the central nervous system. AIMS OF THE STUDY To validate self-reported khat chewing behaviours by measuring levels of cathinone, norephedrine and norpseudoephedrine in saliva and to explore their associations with self-reported khat chewing dependency. MATERIALS AND METHODS Face-to-face interviews were conducted amongst 30 male UK-resident khat chewers. Saliva samples were collected from each participant and high-performance liquid chromatography (HPLC) employed to extract and quantify the levels of the biomarkers. RESULTS The mean (SD) for cathinone and the composite norephedrine and norpseudoephedrine levels were 33.93 (±39.20) and 29.28 (±26.32)μg/mL respectively. These biomarkers were significantly associated (p≤0.05) with khat chewing dependency. CONCLUSIONS Validation of self-reported khat chewing is possible. Khat chewing dependency correlates significantly with biomarker levels in saliva. Replication is required.
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Affiliation(s)
- Saba Kassim
- Queen Mary University of London, Barts and The London School of Medicine and Dentistry, Institute of Dentistry, 4 Newark Street, London E1 2AT, UK.
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36
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Rust KY, Baumgartner MR, Meggiolaro N, Kraemer T. Detection and validated quantification of 21 benzodiazepines and 3 “z-drugs” in human hair by LC–MS/MS. Forensic Sci Int 2012; 215:64-72. [DOI: 10.1016/j.forsciint.2011.07.052] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Revised: 06/26/2011] [Accepted: 07/22/2011] [Indexed: 10/17/2022]
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Li M, Hou XF, Zhang J, Wang SC, Fu Q, He LC. Applications of HPLC/MS in the analysis of traditional Chinese medicines. J Pharm Anal 2012; 1:81-91. [PMID: 29403684 PMCID: PMC5760786 DOI: 10.1016/s2095-1779(11)70015-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2011] [Accepted: 05/20/2011] [Indexed: 01/26/2023] Open
Abstract
In China, traditional Chinese medicines (TCMs) have been used in clinical applications for thousands of years. The successful hyphenation of high-Performance liquid chromatography (HPLC) and mass spectrometry (MS) has been applied widely in TCMs and biological samples analysis. Undoubtedly, HPLC/MS technique has facilitated the understanding of the treatment mechanism of TCMs. We reviewed more than 350 published papers within the last 5 years on HPLC/MS in the analysis of TCMs. The present review focused on the applications of HPLC/MS in the component analysis, metabolites analysis, and pharmacokinetics of TCMs etc. 50% of the literature is related to the component analysis of TCMs, which show that this field is the most populär type of research. In the metabolites analysis, HPLC coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry has been demonstrated to be the powerful tool for the characterization of structural features and fragmentation behavior patterns. This paper presented a brief overview of the applications of HPLC/MS in the analysis of TCMs. HPLC/MS in the fingerprint analysis is reviewed elsewhere.
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Affiliation(s)
- Miao Li
- School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - Xiao-Fang Hou
- School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - Jie Zhang
- School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - Si-Cen Wang
- School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - Qiang Fu
- School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
| | - Lang-Chong He
- School of Medicine, Xi'an Jiaotong University, Xi'an 710061, China
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Abstract
This paper provides a review of novel strategies for sample preparation in forensic toxicology. The review initially outlines the principle of each technique, followed by sections addressing each class of abused drugs separately. The novel strategies currently reviewed focus on the preparation of various biological samples for the subsequent determination of opiates, benzodiazepines, amphetamines, cocaine, hallucinogens, tricyclic antidepressants, antipsychotics and cannabinoids. According to our experience, these analytes are the most frequently responsible for intoxications in Greece. The applications of techniques such as disposable pipette extraction, microextraction by packed sorbent, matrix solid-phase dispersion, solid-phase microextraction, polymer monolith microextraction, stir bar sorptive extraction and others, which are rapidly gaining acceptance in the field of toxicology, are currently reviewed.
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Santali EY, Cadogan AK, Daeid NN, Savage KA, Sutcliffe OB. Synthesis, full chemical characterisation and development of validated methods for the quantification of (±)-4′-methylmethcathinone (mephedrone): A new “legal high”. J Pharm Biomed Anal 2011; 56:246-55. [DOI: 10.1016/j.jpba.2011.05.022] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 04/27/2011] [Accepted: 05/15/2011] [Indexed: 11/25/2022]
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40
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Kelly JP. Cathinone derivatives: A review of their chemistry, pharmacology and toxicology. Drug Test Anal 2011; 3:439-53. [DOI: 10.1002/dta.313] [Citation(s) in RCA: 240] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Revised: 05/19/2011] [Accepted: 05/19/2011] [Indexed: 11/05/2022]
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Grueninger D, Englert R. Determination of the amphetamine-like designer drugs methcathinone and 4-methylmethcathinone in urine by LC-MS/MS. ACTA ACUST UNITED AC 2011. [DOI: 10.1051/ata/2011008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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42
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Sørensen LK. Determination of cathinones and related ephedrines in forensic whole-blood samples by liquid-chromatography-electrospray tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:727-36. [PMID: 21376674 DOI: 10.1016/j.jchromb.2011.02.010] [Citation(s) in RCA: 109] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 02/07/2011] [Accepted: 02/07/2011] [Indexed: 10/18/2022]
Abstract
A liquid-chromatography-tandem-mass-spectrometry method using pneumatically assisted electrospray ionisation (LC-ESI-MS/MS) was developed for the simultaneous determination of cathinone, methcathinone, ethcathinone, amfepramone, mephedrone, flephedrone, methedrone, methylone, butylone, cathine, norephedrine, ephedrine, pseudoephedrine, methylephedrine and methylpseudoephedrine in human live and post-mortem whole blood. The blood proteins were precipitated by the addition of methanol, and the extract was purified by ultrafiltration. The separation of diastereomeric ephedrines was achieved on an ethyl-linked phenyl column. Matrix-matched calibrants combined with the isotope dilution of selected substances were used for quantitative analysis. The relative intra-laboratory reproducibility standard deviations were generally better than 7% at concentrations of 20 μg/L, and the mean true recoveries were 87-106% in the concentration range of 10-250 μg/L. The detection limits were in the range of 0.5-3 μg/L. The cathinones were unstable in whole blood and sample extracts under neutral conditions, but the stability could be improved by the acidification of the sample matrix.
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Affiliation(s)
- Lambert K Sørensen
- Section for Toxicology and Drug Analysis, Department of Forensic Medicine, Aarhus University, Aarhus N, Denmark.
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43
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Validated method for the determination of ethylglucuronide and ethylsulfate in human urine. Anal Bioanal Chem 2011; 400:189-96. [DOI: 10.1007/s00216-011-4667-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2010] [Revised: 12/23/2010] [Accepted: 01/04/2011] [Indexed: 10/18/2022]
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Rossato LG, de Pinho PG, Silva R, Carmo H, Carvalho F, Bastos MDL, Costa VM, Remião F. Development and validation of a GC/IT-MS method for simultaneous quantitation of para and meta-synephrine in biological samples. J Pharm Biomed Anal 2010; 52:721-6. [PMID: 20303689 DOI: 10.1016/j.jpba.2010.02.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2009] [Revised: 02/12/2010] [Accepted: 02/16/2010] [Indexed: 11/16/2022]
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Saar E, Gerostamoulos D, Drummer OH, Beyer J. Identification and quantification of 30 antipsychotics in blood using LC-MS/MS. JOURNAL OF MASS SPECTROMETRY : JMS 2010; 45:915-925. [PMID: 20648676 DOI: 10.1002/jms.1783] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Over the last decade, the prescription rates of antipsychotic (AP) drugs have increased worldwide. Studies have shown that the risk of sudden cardiac death is threefold higher among patients treated with APs. To investigate the presence of APs in postmortem cases, a liquid chromatography (LC)-MS/MS method was developed using only 0.1 ml of blood sample with 10 microl of internal standard (IS) (haloperidol-d(4), 1 microg/ml). After the addition of 0.2 ml of Trizma buffer, the blood sample was extracted using liquid-liquid extraction (LLE) with 1 ml of 1-chlorobutane for 5 min on a shaker at 1500 rpm. After centrifugation at 12,000 rpm for 1 min, the separated solvent layer was transferred to an autosampler vial and evaporated to dryness under N(2). The residue was reconstituted in 0.05 ml acetonitrile containing 0.1% formic acid, vortexed for 30 s and an additional 0.45 ml of 50 mmol/l ammonium formate pH 3.5 was added and the sample vortexed; 0.1 ml of the final extract was injected into a Shimadzu Prominence HPLC system, with detection of drugs achieved using an Applied Biosystems 3200 Q-TRAP LC-MS/MS system equipped with a Turbo V ion source [electron spray ionization (ESI), multiple reaction monitoring (MRM) mode]. The method has been validated according to international guidelines and was found to be selective for all tested compounds. Calibration was satisfactory for all drugs, except olanzapine, from subtherapeutic to toxic concentrations. The lower limits of quantifications (LLOQs) corresponded to the lowest concentrations used for the calibration curves. With the exception of the lowest concentrations of bromperidol, buspirone and perphenazine, accuracy data were within the acceptance interval of +/- 15% (+/- 20% at LLOQ) of the nominal values for all drugs. The method has been proven to be useful for the routine analysis of APs in postmortem blood samples.
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Affiliation(s)
- Eva Saar
- Victorian Institute of Forensic Medicine, Department of Forensic Medicine, Monash University, 57-83 Kavanagh St, Southbank, Victoria 3006, Australia
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Laussmann T, Meier-Giebing S. Forensic analysis of hallucinogenic mushrooms and khat (Catha edulisForsk) using cation-exchange liquid chromatography. Forensic Sci Int 2010; 195:160-4. [DOI: 10.1016/j.forsciint.2009.12.013] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Revised: 12/02/2009] [Accepted: 12/06/2009] [Indexed: 11/25/2022]
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Beyer J, Drummer OH, Maurer HH. Analysis of toxic alkaloids in body samples. Forensic Sci Int 2009; 185:1-9. [DOI: 10.1016/j.forsciint.2008.12.006] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2008] [Revised: 09/25/2008] [Accepted: 12/03/2008] [Indexed: 10/21/2022]
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Thevis M, Sigmund G, Thomas A, Gougoulidis V, Rodchenkov G, Schänzer W. Doping control analysis of metamfepramone and two major metabolites using liquid chromatography-tandem mass spectrometry. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2009; 15:507-515. [PMID: 19661559 DOI: 10.1255/ejms.1010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The sympathomimetic agent metamfepramone (2-dimethylamino-1-phenylpropan-1-one, dimethylpropion) is widely used for the treatment of the common cold or hypotonic conditions. Due to its stimulating properties and its rapid metabolism resulting in major degradation products such as methylpseudoephedrine and methcathinone, it has been considered relevant for doping controls by the World Anti-Doping Agency (WADA). The rapid degradation of the active drug complicates the detection of metamfepramone itself but the metabolites methylpseudoephedrine and methcathinone can be monitored, and the finding of the latter in particular allows the inference of a metamfepramone administration. In order to improve sports drug testing procedures, metamfepramone, methylpseudoephedrine and methcathinone were characterized using electrospray ionization-high resolution/high accuracy mass spectrometry, and a method employing liquid chromatography/tandem mass spectrometry was established that allowed the analysis of these three analytes by direct injection of 2 microL of urine specimens. The assay was validated with regard to specificity, lower limits of detection (2-10 ng mL(-1)), intraday and interday precision (3-17%) and ion suppression/enhancement effects. The developed procedure has been used to verify or falsify suspicious signals observed in routine screening procedures based on gas chromatography/mass spectrometry and yielded an adverse analytical finding concerning a metamfepramone administration in an authentic doping control sample. Although the active drug was not detected, the indicative metabolites methylpseudoephedrine and methcathinone were considered sufficient to infer the application of the prohibited drug.
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Affiliation(s)
- Mario Thevis
- Center for Preventive Doping Research-Institute of Biochemistry, German Sport University Cologne, Am Sportpark Müngersdorf 6, 50933, Cologne, Germany.
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Rapid GC–MS confirmation of amphetamines in urine by extractive acylation. Forensic Sci Int 2009; 183:78-86. [DOI: 10.1016/j.forsciint.2008.10.021] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2008] [Revised: 10/28/2008] [Accepted: 10/30/2008] [Indexed: 11/23/2022]
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