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Helander A, Bäckberg M, Hultén P, Al-Saffar Y, Beck O. Detection of new psychoactive substance use among emergency room patients: results from the Swedish STRIDA project. Forensic Sci Int 2014; 243:23-9. [PMID: 24726531 DOI: 10.1016/j.forsciint.2014.02.022] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Revised: 12/10/2013] [Accepted: 02/21/2014] [Indexed: 10/25/2022]
Abstract
The "STRIDA" project monitors the occurrence and trends of new psychoactive substances (NPS; "Internet drugs/designer drugs/legal highs") in Sweden, and collects information about their clinical symptoms, toxicity and associated health hazards. The initial results of the project documented a widespread use of many different NPS by mainly adolescents and young (age range 13-63 years, median 20), male (79%) adults, among cases of drug intoxications presenting at emergency departments and intensive care units across the country. The new substances were identified in samples of urine and blood by a multi-component LC-MS/MS method, and the severity of clinical symptoms were graded by the Poisoning Severity Score (PSS). Of the initial 189 samples submitted for laboratory investigation, 156 (83%) tested positive for at least one drug. Besides classical substances such as ethanol, cannabis and amphetamines, many NPS were detected comprising synthetic cannabinoid receptor agonists ("Spice"), piperazines, substituted phenethylamines, synthetic cathinones, hallucinogenic tryptamines, piperidines, opioid related substances, ketamine and related substances, and GABA analogues (in total more than 50 substances). About half of the cases were demonstrated to be multiple drug intoxications, sometimes making it hard to associate the clinical presentations with one specific substance. In conclusion, the STRIDA project has documented use of a broad variety of NPS among mainly young people all over Sweden.
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Affiliation(s)
- Anders Helander
- Karolinska Institutet, Department of Laboratory Medicine, Stockholm, Sweden; Karolinska University Laboratory, Clinical Pharmacology, Stockholm, Sweden.
| | | | - Peter Hultén
- Swedish Poisons Information Centre, Stockholm, Sweden
| | - Yasir Al-Saffar
- Karolinska Institutet, Department of Laboratory Medicine, Stockholm, Sweden
| | - Olof Beck
- Karolinska Institutet, Department of Laboratory Medicine, Stockholm, Sweden; Karolinska University Laboratory, Clinical Pharmacology, Stockholm, Sweden
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Kerrigan S, Mott A, Jatzlau B, Ortiz F, Perrella L, Martin S, Bryand K. Designer Psychostimulants in Urine by Liquid Chromatography-Tandem Mass Spectrometry,. J Forensic Sci 2013; 59:175-83. [DOI: 10.1111/1556-4029.12306] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 11/14/2012] [Accepted: 11/23/2012] [Indexed: 11/30/2022]
Affiliation(s)
- Sarah Kerrigan
- Department of Forensic Science; College of Criminal Justice; Sam Houston State University; Box 2525 1003 Bowers Blvd. Huntsville TX 77341
- Sam Houston State University Regional Crime Laboratory; The Woodlands TX 77381
| | - Ashley Mott
- Department of Forensic Science; College of Criminal Justice; Sam Houston State University; Box 2525 1003 Bowers Blvd. Huntsville TX 77341
| | - Breanna Jatzlau
- Department of Forensic Science; College of Criminal Justice; Sam Houston State University; Box 2525 1003 Bowers Blvd. Huntsville TX 77341
| | - Francisco Ortiz
- Department of Forensic Science; College of Criminal Justice; Sam Houston State University; Box 2525 1003 Bowers Blvd. Huntsville TX 77341
| | - Laura Perrella
- Department of Forensic Science; College of Criminal Justice; Sam Houston State University; Box 2525 1003 Bowers Blvd. Huntsville TX 77341
| | - Sarah Martin
- Department of Forensic Science; College of Criminal Justice; Sam Houston State University; Box 2525 1003 Bowers Blvd. Huntsville TX 77341
| | - Kelsie Bryand
- Department of Forensic Science; College of Criminal Justice; Sam Houston State University; Box 2525 1003 Bowers Blvd. Huntsville TX 77341
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Kudo K, Usumoto Y, Usui K, Hayashida M, Kurisaki E, Saka K, Tsuji A, Ikeda N. Rapid and simultaneous extraction of acidic and basic drugs from human whole blood for reliable semi-quantitative NAGINATA drug screening by GC–MS. Forensic Toxicol 2013. [DOI: 10.1007/s11419-013-0215-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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54
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Meyer MR, Caspar A, Brandt SD, Maurer HH. A qualitative/quantitative approach for the detection of 37 tryptamine-derived designer drugs, 5 β-carbolines, ibogaine, and yohimbine in human urine and plasma using standard urine screening and multi-analyte approaches. Anal Bioanal Chem 2013; 406:225-37. [DOI: 10.1007/s00216-013-7425-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 10/02/2013] [Accepted: 10/07/2013] [Indexed: 11/28/2022]
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55
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Separation and determination of chlorophenylpiperazine isomers in confiscated pills by capillary electrophoresis. J Pharm Biomed Anal 2013; 84:140-7. [DOI: 10.1016/j.jpba.2013.05.042] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 05/26/2013] [Accepted: 05/27/2013] [Indexed: 11/18/2022]
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56
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Ambach L, Hernández Redondo A, König S, Weinmann W. Rapid and simple LC-MS/MS screening of 64 novel psychoactive substances using dried blood spots. Drug Test Anal 2013; 6:367-75. [PMID: 23868723 DOI: 10.1002/dta.1505] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 05/31/2013] [Accepted: 06/01/2013] [Indexed: 11/08/2022]
Abstract
The range of novel psychoactive substances (NPS) including phenethylamines, cathinones, piperazines, tryptamines, etc. is continuously growing. Therefore, fast and reliable screening methods for these compounds are essential and needed. The use of dried blood spots (DBS) for a fast straightforward approach helps to simplify and shorten sample preparation significantly. DBS were produced from 10 µl of whole blood and extracted offline with 500 µl methanol followed by evaporation and reconstitution in mobile phase. Reversed-phase chromatographic separation and mass spectrometric detection (RP-LC-MS/MS) was achieved within a run time of 10 min. The screening method was validated by evaluating the following parameters: limit of detection (LOD), matrix effect, selectivity and specificity, extraction efficiency, and short-term and long-term stability. Furthermore, the method was applied to authentic samples and results were compared with those obtained with a validated whole blood method used for routine analysis of NPS. LOD was between 1 and 10 ng/ml. No interference from matrix compounds was observed. The method was proven to be specific and selective for the analytes, although with limitations for 3-FMC/flephedrone and MDDMA/MDEA. Mean extraction efficiency was 84.6 %. All substances were stable in DBS for at least a week when cooled. Cooling was essential for the stability of cathinones. Prepared samples were stable for at least 3 days. Comparison to the validated whole blood method yielded similar results. DBS were shown to be useful in developing a rapid screening method for NPS with simplified sample preparation.
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Affiliation(s)
- Lars Ambach
- Institute of Forensic Medicine, University of Bern, Bühlstrasse 20, CH-3012, Bern, Switzerland
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57
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Al-Saffar Y, Stephanson NN, Beck O. Multicomponent LC–MS/MS screening method for detection of new psychoactive drugs, legal highs, in urine—Experience from the Swedish population. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 930:112-20. [DOI: 10.1016/j.jchromb.2013.04.043] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2012] [Revised: 04/22/2013] [Accepted: 04/30/2013] [Indexed: 11/15/2022]
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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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Helander A, Beck O, Hägerkvist R, Hultén P. Identification of novel psychoactive drug use in Sweden based on laboratory analysis – initial experiences from the STRIDA project. Scandinavian Journal of Clinical and Laboratory Investigation 2013; 73:400-6. [DOI: 10.3109/00365513.2013.793817] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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60
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What is the future of (ultra) high performance liquid chromatography coupled to low and high resolution mass spectrometry for toxicological drug screening? J Chromatogr A 2013; 1292:19-24. [DOI: 10.1016/j.chroma.2012.08.069] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Revised: 08/16/2012] [Accepted: 08/22/2012] [Indexed: 12/12/2022]
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61
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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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62
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Fornal E. Identification of substituted cathinones: 3,4-Methylenedioxy derivatives by high performance liquid chromatography-quadrupole time of flight mass spectrometry. J Pharm Biomed Anal 2013; 81-82:13-9. [PMID: 23603275 DOI: 10.1016/j.jpba.2013.03.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 03/20/2013] [Accepted: 03/24/2013] [Indexed: 10/27/2022]
Abstract
The potential of high performance liquid chromatography-high resolution mass spectrometry (HPLC-HRMS) for screening of synthetic cathinones in legal highs was examined. Samples were analysed by liquid chromatography coupled to hybrid quadrupole time-of-flight mass spectrometer (Q/TOF). Nanoelectrospray ionisation (nanoESI) was employed. MS and MS/MS spectra were acquired. Six 3,4-methylenedioxy derivatives: methylone, butylone, pentylone, MDPBP, MDPV and BMDP were detected and identified. The fragmentation pattern of 3,4-methylenedioxy derivatives in collision induced dissociation (CID) was derived and described, which will facilitate future screenings and identifications of new synthetic cathinones. For 3,4-methylenodioxy derivative cathinones the loss of neutral groups CH₄O₂, H₂O, amines and imines is observed. The loss of water and the methylenedioxy group does not occur when cyclic amino group - pyrrolidynyl is present in the molecule. Phenyloxazole cations are formed when CH₄O₂ is lost. The formation of the metylenedioxybenzoyloxonium and allyldioxybenzoyloxonium ions is typical for 3,4-methylenodioxy derivatives, however, the formation of the former appears to be inhibited by the presence in the molecule of the group of atoms able to form very stable tropylium carbocation.
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Affiliation(s)
- Emilia Fornal
- Chemistry Department, The John Paul II Catholic University of Lublin, al. Krasnicka 102, 20-718 Lublin, Poland.
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63
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Van Vrancken MJ, Benavides R, Wians FH. Identification of designer drug 2C-E (4-ethyl-2, 5-dimethoxy-phenethylamine) in urine following a drug overdose. Proc (Bayl Univ Med Cent) 2013; 26:58-61. [PMID: 23382618 DOI: 10.1080/08998280.2013.11928922] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
In recent years, access to information regarding acquisition and synthesis of newer designer drugs has been at an all-time high due largely to the Internet. As these drugs have become more prevalent, laboratory techniques have been developed and refined to identify and screen for this burgeoning population of drugs. This provides a unique opportunity for learning about many of these methods. Laboratory testing techniques and instrumentation are obscure to many health care professionals, yet their results are crucial. Here, we present a case of an overdose of an uncommon designer drug (2C-E) and discuss the basics of liquid chromatography and mass spectrometry, two important techniques used in isolating and identifying the drug. Although often overlooked and taken for granted, these techniques can play a pivotal role in the diagnosis and subsequent management of select patients.
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64
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Montesano C, Sergi M, Moro M, Napoletano S, Romolo FS, Del Carlo M, Compagnone D, Curini R. Screening of methylenedioxyamphetamine- and piperazine-derived designer drugs in urine by LC-MS/MS using neutral loss and precursor ion scan. JOURNAL OF MASS SPECTROMETRY : JMS 2013; 48:49-59. [PMID: 23303747 DOI: 10.1002/jms.3115] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Revised: 09/28/2012] [Accepted: 09/29/2012] [Indexed: 06/01/2023]
Abstract
This study describes a method for the screening of methylenedioxyamphetamine- and piperazine-derived compounds in urine by liquid chromatography-tandem mass spectrometry. These substances, characterized by possessing common moieties, are screened using precursor ion and neutral loss scan mode and then quantified in multiple reaction monitoring acquisition mode. Based on the product-ion spectra of different known molecules, chosen as 'model', characteristic neutral losses and product ions were selected: piperazines were detected in precursor ion scan of m/z 44 and neutral loss of 43 and 86 while amphetamines in precursor ion scan of m/z 133, 135 and 163. The applicability of the screening approach was studied in blank urine spiked with selected analytes and processed by solid-phase extraction. Linearity, matrix effect, precision, accuracy, limits of detection and limits of quantification were evaluated both for the screening and the quantification methods. The ability of the screening method to provide semi-quantitative data was demonstrated. This method appears to be a useful tool for the identification of designer drugs derived from piperazines or methylenedioxyamphetamines and can be potentially applied to other drug classes.
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Affiliation(s)
- Camilla Montesano
- Department of Chemistry, Sapienza University of Rome, 00185, Rome, Italy
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65
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66
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Determination of 32 cathinone derivatives and other designer drugs in serum by comprehensive LC-QQQ-MS/MS analysis. Anal Bioanal Chem 2012. [PMID: 23180084 DOI: 10.1007/s00216-012-6548-8] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Recently, clandestine drug lab operators have attempted to bypass controlled substances laws and regulations with "designer" compounds chemically and pharmacologically similar to controlled substances. For example, "bath salts" have erupted onto the scene as "legal highs" containing cathinone analogs that have produced severe side effects in users worldwide. These products have sparked concern among law enforcement agencies, and emergency bans have been placed on the sale of such items. Despite the increasing number of designer drugs available, there are few comprehensive screening techniques for their detection and quantification in biological specimens. The liquid chromatography triple quadrupole tandem mass spectrometry (LC-QQQ-MS/MS) method presented here encompasses over thirty important compounds within the phenethylamine, tryptamine, and piperazine designer drug classes. Analytes were determined by LC-QQQ-MS/MS in the multiple-reaction monitoring mode after mixed-mode solid-phase extraction. The bioanalytical method was fully validated according to recommended international guidelines. The assay was selective for all analytes with acceptable accuracy and precision. Limits of quantification were in the range of 1-10 ng/mL for each compound with limits of detection near 10 pg/mL. In order to evaluate its applicability in a forensic toxicological setting, the validated method was used to analyze post-mortem specimens from two cases that were suspected of containing designer drugs. The method was able to identify and quantify seven of these compounds at concentrations as low as 11 ng/mL. The method should have wide applicability for rapid screening of important new drugs of abuse at high sensitivity in both post- and ante-mortem forensic analysis.
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67
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Fast screening of 88 pharmaceutical drugs and metabolites in whole blood by ultrahigh-performance liquid chromatography–tandem mass spectrometry. Anal Bioanal Chem 2012; 405:863-79. [DOI: 10.1007/s00216-012-6403-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 08/17/2012] [Accepted: 08/31/2012] [Indexed: 01/27/2023]
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68
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Caudevilla-Gálligo F, Riba J, Ventura M, González D, Farré M, Barbanoj MJ, Bouso JC. 4-Bromo-2,5-dimethoxyphenethylamine (2C-B): presence in the recreational drug market in Spain, pattern of use and subjective effects. J Psychopharmacol 2012; 26:1026-35. [PMID: 22234927 DOI: 10.1177/0269881111431752] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
4-Bromo-2,5-dimethoxyphenethylamine (2C-B) is a psychoactive analogue of mescaline that is becoming increasingly popular as a rave and club drug. We investigated its presence in the illicit drug market in Spain, its pattern of use and profile of subjective effects. Drug material was analysed for 2C-B and information on pattern of use and subjective effects was obtained from recreational users. Scores were statistically compared with previously collected data on psychostimulants (d-amphetamine), entactogens (MDMA) and psychedelics (ayahuasca and Salvia divinorum). The percentage of samples containing 2C-B doubled between 2006 and 2009, evolved from powder to tablet form and showed low falsification rates. Respondents reported taking 2C-B orally in doses of about 20 mg. Subjective effects involved perceptual modifications analogous to those observed after ayahuasca and salvia but absent after amphetamine and MDMA. Pleasure and sociability effects did not differ from those after MDMA and incapacitation was lower than for the psychedelics used as comparators. In conclusion, we found 2C-B is consistently present in the illicit drug market in Spain. While it elicits perceptual modifications that are analogous to other psychedelics, the lower impairment and higher pleasurable effects make it comparable with entactogens.
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69
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70
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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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71
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Arbo MD, Bastos ML, Carmo HF. Piperazine compounds as drugs of abuse. Drug Alcohol Depend 2012; 122:174-85. [PMID: 22071119 DOI: 10.1016/j.drugalcdep.2011.10.007] [Citation(s) in RCA: 128] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 09/29/2011] [Accepted: 10/10/2011] [Indexed: 01/05/2023]
Abstract
Synthetic drugs are among the most commonly abused drugs in the world. This abuse is widespread among young people, especially in the dance club and rave scenes. Over the last several years, piperazine derived drugs have appeared, mainly available via the internet, and sold as ecstasy pills or under the names of "Frenzy", "Bliss", "Charge", "Herbal ecstasy", "A2", "Legal X" and "Legal E". Although in the market piperazine designer drugs have the reputation of being safe, several experimental and epidemiological studies indicate risks for humans. Piperazine designer drugs can be divided into two classes, the benzylpiperazines such as N-benzylpiperazine (BZP) and its methylenedioxy analogue 1-(3,4-methylenedioxybenzyl)piperazine (MDBP), and the phenylpiperazines such as 1-(3-chlorophenyl)piperazine (mCPP), 1-(3-trifluoromethylphenyl)piperazine (TFMPP), and 1-(4-methoxyphenyl)piperazine (MeOPP). Toxicokinetic properties, including metabolic pathways, actions and effects in animals and humans, with some hypothesis of mechanism of action, and analytical approaches for the identification of these drugs are summarized in this review.
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Affiliation(s)
- M D Arbo
- REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Portugal.
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72
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Moreno I, da Fonseca B, Barroso M, Costa S, Queiroz J, Gallardo E. Determination of piperazine-type stimulants in human urine by means of microextraction in packed sorbent and high performance liquid chromatography-diode array detection. J Pharm Biomed Anal 2012; 61:93-9. [DOI: 10.1016/j.jpba.2011.12.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2011] [Revised: 12/04/2011] [Accepted: 12/06/2011] [Indexed: 02/04/2023]
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73
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Zuba D. Identification of cathinones and other active components of ‘legal highs’ by mass spectrometric methods. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2011.09.009] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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74
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Moreno IED, da Fonseca BM, Magalhães AR, Geraldes VS, Queiroz JA, Barroso M, Costa S, Gallardo E. Rapid determination of piperazine-type stimulants in human urine by microextraction in packed sorbent after method optimization using a multivariate approach. J Chromatogr A 2011; 1222:116-20. [PMID: 22209305 DOI: 10.1016/j.chroma.2011.12.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Revised: 11/30/2011] [Accepted: 12/03/2011] [Indexed: 11/24/2022]
Abstract
This paper describes the analysis of piperazine-type stimulants [1-benzylpiperazine (BZP), 1-(3-trifluoromethylphenyl)piperazine (TFMPP), 1-(3-chlorophenyl)piperazine (mCPP) and 1-(4-methoxyphenyl)piperazine (MeOPP)] in low volume urine samples (0.1 mL) by microextraction in packed sorbent and liquid chromatography-diode array detection. Analyte extraction has been comprehensively optimized, and the influencing factors were screened by means of the fractional factorial design approach. Several parameters susceptible of influencing the process were studied, and these included extraction sorbent type (C(8) and C(18)), sample dilution (1:2 and 1:4), number of aspirations through the device (2 and 8) and the amount of methanol on both the washing (0 and 10%) and eluting solvents (10 and 100%). The method was linear from 0.5 (lower limit of quantitation) to 5 μgmL(-1), with determination coefficients higher than 0.99 for all compounds. Intra- and interday precision ranged from 1 to 9%, trueness was within a ± 11% interval for all analytes, and analyte recoveries were of about 70% for mCPP and TFMPP, and of about 10% for MeOPP and BZP. The method has shown to be selective, as no interferences from endogenous substances were detected by analysis of blank samples, and the analytes were stable in the samples for short periods at room temperature, after three freeze/thaw cycles and in processed samples. Due to its simplicity and speed, this method can be successfully applied in the screening and quantitation of these compounds in urine samples, and is suitable for application in forensic toxicology routine analysis.
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Affiliation(s)
- I E D Moreno
- CICS-UBI - Centro de Investigação em Ciências da Saúde, Universidade da Beira Interior, Av. Infante D. Henrique, 6201-556 Covilhã, Portugal
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75
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Berg T, Strand DH. ¹³C labelled internal standards--a solution to minimize ion suppression effects in liquid chromatography-tandem mass spectrometry analyses of drugs in biological samples? J Chromatogr A 2011; 1218:9366-74. [PMID: 22119139 DOI: 10.1016/j.chroma.2011.10.081] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2011] [Revised: 10/24/2011] [Accepted: 10/26/2011] [Indexed: 11/17/2022]
Abstract
Liquid chromatography-tandem mass spectrometry (LC-MS/MS) is frequently used to identify and quantify drugs in human biological samples due to the high selectivity and sensitivity of this technique. However, ion suppression effects caused by co-eluting compounds: drugs, metabolites, matrix components, impurities and degradation products, are a major concern. Stable isotope labelled internal standards (SIL ISs), usually deuterium ((2)H) labelled, are often used to compensate for these effects. In many LC separations the retention times of (2)H labelled ISs and their analogues will differ. Ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) is increasingly being used for bio-analysis. With the better chromatographic resolution provided with sub 2 μm particles, larger separation between analytes and their (2)H labelled analogues can be expected, which might reduce the benefits of the SIL IS. There is a greater difference in physico-chemical properties between hydrogen isotopes than between isotopes of other elements. (13)C, (15)N and (18)O labelled ISs are more similar to their analytes than (2)H labelled ISs and thereby expected to behave more similarly in chromatographic separations. In this study we have investigated the use of (13)C and (2)H labelled ISs for the determination of amphetamine and methamphetamine by UPLC-MS/MS. The (13)C labelled ISs were co eluting with their analytes under different chromatographic conditions while the (2)H labelled ISs and their analytes were slightly separated. An improved ability to compensate for ion suppression effects were observed when the (13)C labelled ISs were used. Furthermore, an UPLC-MS/MS method for determination of amphetamine and methamphetamine in urine using (13)C labelled ISs has been developed and validated. Unfortunately, there are few (13)C labelled ISs commercial available today. If more (13)C labelled ISs become commercial available they may well be the coming solution to minimize ion suppression/enhancement effects in LC-MS/MS analyses of drugs in biological samples.
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Affiliation(s)
- Thomas Berg
- Division of Forensic Toxicology and Drug Abuse, Norwegian Institute of Public Health, Oslo, Norway.
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76
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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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77
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Bell C, George C, Kicman AT, Traynor A. Development of a rapid LC-MS/MS method for direct urinalysis of designer drugs. Drug Test Anal 2011; 3:496-504. [DOI: 10.1002/dta.306] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2011] [Revised: 05/10/2011] [Accepted: 05/11/2011] [Indexed: 11/06/2022]
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78
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Elliott S. Current awareness of piperazines: pharmacology and toxicology. Drug Test Anal 2011; 3:430-8. [PMID: 21744514 DOI: 10.1002/dta.307] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Revised: 03/22/2011] [Accepted: 05/11/2011] [Indexed: 11/05/2022]
Abstract
Although many piperazine derivatives exist, only a limited number have been studied, whereby they have been found to be generally stimulant in nature resulting from dopaminergic, noradrenergic, and predominantly serotoninergic effects in the brain. Reported toxic effects include agitation, anxiety, cardiac symptoms (e.g. tachycardia) and sometimes seizures. As for many drugs, they are primarily metabolized by cytochrome P450 with subsequent possible glucuronidation and/or sulfation. Their abuse has been relatively recently observed in the last decade with only a few identified in biological fluid (primarily 1-benzylpiperazine (BZP) and 1-(3-trifluoromethylphenyl)piperazine (3-TFMPP)) despite publications of a number of analytical methods. Even when detected, however, the toxicological significance of their presence is often difficult to ascertain as many cases involve other drugs as well as a wide and overlapping range of concentrations found in blood (both in life and after death). This paper reviews the current pharmacological and toxicological information for piperazine derivatives and also includes new ante-mortem and post-mortem blood data.
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Affiliation(s)
- Simon Elliott
- Forensics Ltd, Malvern Hills Science Park, Geraldine Road, Malvern, Worcestershire WR14 3SZ, UK.
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79
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Kanamori T, Kuwayama K, Tsujikawa K, Miyaguchi H, Iwata YT, Inoue H. Synthesis and Identification of Urinary Metabolites of 4-Iodo-2,5-dimethoxyphenethylamine. J Forensic Sci 2011; 56:1319-23. [DOI: 10.1111/j.1556-4029.2011.01809.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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80
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Drugs of abuse screening in urine as part of a metabolite-based LC-MSn screening concept. Anal Bioanal Chem 2011; 400:3481-9. [DOI: 10.1007/s00216-011-5032-1] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2011] [Revised: 04/11/2011] [Accepted: 04/15/2011] [Indexed: 10/18/2022]
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81
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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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82
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Bassan DM, Erdmann F, Krüll R. Quantitative determination of 43 common drugs and drugs of abuse in human serum by HPLC-MS/MS. Anal Bioanal Chem 2011; 400:43-50. [DOI: 10.1007/s00216-011-4784-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 02/07/2011] [Accepted: 02/07/2011] [Indexed: 11/29/2022]
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83
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Colorimetric detection and chromatographic analyses of designer drugs in biological materials: a comprehensive review. Forensic Toxicol 2011. [DOI: 10.1007/s11419-010-0107-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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84
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Recent advances of liquid chromatography–(tandem) mass spectrometry in clinical and forensic toxicology. Clin Biochem 2011; 44:54-65. [DOI: 10.1016/j.clinbiochem.2010.08.008] [Citation(s) in RCA: 157] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Revised: 08/04/2010] [Accepted: 08/05/2010] [Indexed: 11/23/2022]
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85
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Brown SD, Melton TC. Trends in bioanalytical methods for the determination and quantification of club drugs: 2000-2010. Biomed Chromatogr 2010; 25:300-21. [DOI: 10.1002/bmc.1549] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 09/09/2010] [Accepted: 09/10/2010] [Indexed: 11/10/2022]
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86
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Current Awareness in Drug Testing and Analysis. Drug Test Anal 2010. [DOI: 10.1002/dta.65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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87
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Analysis of phenylpiperazine-like stimulants in human hair as trimethylsilyl derivatives by gas chromatography–mass spectrometry. J Chromatogr A 2010; 1217:6274-80. [DOI: 10.1016/j.chroma.2010.08.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2010] [Revised: 07/28/2010] [Accepted: 08/02/2010] [Indexed: 11/21/2022]
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