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Sánchez-Sellero I, Cabarcos-Fernández P, Jaureguízar-Rodríguez ME, Álvarez-Freire I, Tabernero-Duque MJ, Bermejo-Barrera AM. Development and Validation of a Sonication-Assisted Dispersive Liquid-Liquid Microextraction Procedure and an HPLC-PDA Method for Quantitative Determination of Zolpidem in Human Plasma and Its Application to Forensic Samples. Molecules 2024; 29:2490. [PMID: 38893365 PMCID: PMC11173445 DOI: 10.3390/molecules29112490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 05/10/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024] Open
Abstract
The use of z-drugs has increased worldwide since its introduction. Although the prescribing patterns of hypnotics differ among countries, zolpidem is the most widely used z-drug in the world. Zolpidem may be involved in poisoning and deaths. A simple and fast HPLC-PDA method was developed and validated. Zolpidem and the internal standard chloramphenicol were extracted from plasma using a sonication-assisted dispersive liquid-liquid microextraction procedure. The method was validated including selectivity, linearity, precision, accuracy, and recovery. The calibration range (0.15-0.6 µg/mL) covers therapeutic and toxic levels of zolpidem in plasma. The limit of quantification was set at 0.15 µg/mL. Intra- and interday accuracy and precision values were lower than 15% at the concentration levels studied. Excellent recovery results were obtained for all concentrations. The proposed method was successfully applied to ten real postmortem plasma samples. In our series, multiple substances (alcohol and/or other drugs) were detected in most cases of death involving zolpidem. Our analytical method is suitable for routine toxicological analysis.
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Affiliation(s)
| | - Pamela Cabarcos-Fernández
- Forensic Toxicology Service, Forensic Sciences Institute, Faculty of Medicine, Universidade de Santiago de Compostela, C/San Francisco s/n, 15782 Santiago de Compostela, Spain; (I.S.-S.); (M.E.J.-R.); (I.Á.-F.); (M.J.T.-D.); (A.M.B.-B.)
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2
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Fabris AL, Pedersen-Bjergaard S, Øiestad EL, Rossi GN, Hallak JEC, Dos Santos RG, Costa JL, Yonamine M. Solvent-free parallel artificial liquid membrane extraction for drugs of abuse in plasma samples using LC-MS/MS. Anal Chim Acta 2024; 1301:342387. [PMID: 38553114 DOI: 10.1016/j.aca.2024.342387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/05/2024] [Accepted: 02/18/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Parallel artificial liquid membrane extraction (PALME) is a 96-well plate setup variant of liquid-phase microextraction. Basic or acidic analytes are extracted in neutral form from the sample, through a supported liquid membrane (SLM), and into aqueous acceptor. PALME is already considered a green extraction technique, but in the current conceptual work, we sought to make it even greener by replacing the use of organic solvents with essential oils (EO). PALME was combined with LC-MS/MS for analysis of plasma samples and multiple drugs of abuse with toxicological relevance (amphetamines, phenethylamines, synthetic cathinones, designer benzodiazepines, ayahuasca alkaloids, lysergic acid diethylamide, and ketamine). RESULTS Fourteen EO were compared to organic solvents frequently used in PALME. The EO termed smart & sassy yielded the best analyte recovery for all drugs studied and was thus selected as SLM. Then, factorial screening and Box-Behnken were employed to optimize the technique. The extraction time, concentration of base, sample volume, and percentage of trioctylamine significantly impacted analyte recovery. The optimum values were defined as 120 min, 10 mmol/L of NaOH, 150 μL, and 0%, respectively. Once optimized, validation parameters were 1-100 ng mL-1 as linear range, accuracy ±16.4%, precision >83%, 1 ng mL-1 as limit of quantitation, 0.1-0.75 ng mL-1 as limit of detection, matrix effect <20%, and recovery 20-106%. Additionally, EO purchased from different production batches were tested and achieved acceptable reproducibility. Data were in compliance with requirements set by internationally accepted validation guidelines and the applicability of the technique was proven using authentic samples. SIGNIFICANCE In this study, the use of an EO provided a solvent-free sample preparation technique suited to extract different classes of drugs of abuse from plasma samples, dismissing the use of hazardous organic solvents. The method also provided excellent sample clean-up, thus being a simple and efficient tool for toxicological applications that is in agreement with the principles of sustainable chemistry.
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Affiliation(s)
- André Luis Fabris
- School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, 05508-000, Brazil.
| | - Stig Pedersen-Bjergaard
- Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, 0316, Oslo, Norway; Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Elisabeth Leere Øiestad
- Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, 0316, Oslo, Norway; Department of Forensic Sciences, Division of Laboratory Medicine, Oslo University Hospital, P.O. Box 4459 Nydalen, 0424, Oslo, Norway
| | - Giordano Novak Rossi
- Department of Neurosciences and Behavior, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil
| | - Jaime E Cecílio Hallak
- Department of Neurosciences and Behavior, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; National Institute of Science and Technology - Translational Medicine, Brazil
| | - Rafael Guimarães Dos Santos
- Department of Neurosciences and Behavior, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, Brazil; National Institute of Science and Technology - Translational Medicine, Brazil
| | - Jose Luiz Costa
- Campinas Poison Control Center, University of Campinas, Campinas, SP, 13083-859, Brazil; Faculty of Pharmaceutical Sciences, University of Campinas, Campinas, SP, 13083-871, Brazil
| | - Mauricio Yonamine
- School of Pharmaceutical Sciences, University of São Paulo, São Paulo, SP, 05508-000, Brazil
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3
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Wu D, Fu L. Recent findings and advancements in the detection of designer benzodiazepines: a brief review. Arh Hig Rada Toksikol 2023; 74:224-231. [PMID: 38146763 PMCID: PMC10750316 DOI: 10.2478/aiht-2023-74-3771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/01/2023] [Accepted: 11/01/2023] [Indexed: 12/27/2023] Open
Abstract
This review article takes a closer look at a new class of psychoactive substances called designer benzodiazepines (DBZs) and the challenges of their detection. These are adinazolam, clonazolam, deschloroetizolam, diclazepam, etizolam, flualprazolam, flubromazepam, flubromazolam, phenazepam, and pyrazolam. They are central nervous system depressants and sedatives that can cause psychomotor impairment and increase the overdose risk when combined with other sedatives. DBZs undergo phase I and II metabolism similar to traditional benzodiazepines, but their specific metabolic pathways and the influence of genetic polymorphisms are yet to be clarified. Advances in liquid chromatography-tandem mass spectrometry (LC-MS/MS) have enhanced the method's sensitivity for DBZs and their metabolites in biological samples and coupled with improved blood sampling methods require less blood for drug monitoring. Further research should focus on elucidating their pharmacokinetic properties and metabolism in humans, especially in view of genetic polymorphisms and drug interactions that could inform clinical treatment choices. Even though we have witnessed important advances in DBZ detection and measurement, further refinements are needed to expand the scope of detectable DBZs and their metabolites. All this should help toxicological research to better identify and characterise the risks of chronic and polydrug abuse and facilitate clinical, forensic, and regulatory responses to this growing issue.
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Affiliation(s)
- Dihua Wu
- Hangzhou Dianzi University College of Materials and Environmental Engineering, Hangzhou, China
| | - Li Fu
- Hangzhou Dianzi University College of Materials and Environmental Engineering, Hangzhou, China
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4
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Schüller M, Lucic I, Øiestad ÅML, Pedersen-Bjergaard S, Øiestad EL. High-throughput quantification of emerging "nitazene" benzimidazole opioid analogs by microextraction and UHPLC-MS-MS. J Anal Toxicol 2023; 47:787-796. [PMID: 37700512 PMCID: PMC10714918 DOI: 10.1093/jat/bkad071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/30/2023] [Accepted: 09/06/2023] [Indexed: 09/14/2023] Open
Abstract
Benzimidazole opioids, often referred to as nitazenes, represent a subgroup of new psychoactive substances with a recent increase in fatal overdoses in the USA and Europe. With a variety of analogs emerging on the illicit drug market, forensic laboratories are challenged to identify these potent drugs. We here present a simple quantitative approach for the determination of nine nitazene analogs, namely, clonitazene, etodesnitazene, etonitazene, etonitazepyne, flunitazene, isotonitazene, metodesnitazene, metonitazene and protonitazene in whole blood using liquid-phase microextraction and electromembrane extraction in a 96-well format and liquid chromatography-tandem mass spectrometry. Green and efficient sample preparation was accomplished by liquid-phase microextraction in a 96-well format and resulted in high extraction yields for all analytes (>81%). Here, blood diluted with buffer (1:1, %v) was extracted from a donor compartment across a thin organic liquid membrane and into an aqueous acceptor solution. The acceptor solution was collected and directly injected into the analysis platform. Chromatographic separation was accomplished with a biphenyl column, allowing for a baseline separation of the structural isomers isotonitazene and protonitazene before detection by multiple reaction monitoring. Validation was performed according to Scientific Working Group of Forensic Toxicology guidelines. The calibration range was from 0.5 to 50 nM (except for protonitazene and clonitazene from 0.1 nM) with good linearity and limits of detection down to 0.01 nM. An AGREEprep assessment was performed to evaluate sample preparation greenness, with a final score of 0.71. Nitazenes represent a current threat to public health, and analytical methods that cover a wide range of these analogs are limited. Here, the described method may assist in the detection of nitazenes in whole blood and prevent these substances from being missed in postmortem investigations.
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Affiliation(s)
- Maria Schüller
- Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, Oslo 0316, Norway
| | - Ivana Lucic
- Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, Oslo 0316, Norway
| | - Åse Marit Leere Øiestad
- Department of Forensic Sciences, Division of Laboratory Medicine, Oslo University Hospital, P.O. Box 4459 Nydalen, Oslo 0424, Norway
| | - Stig Pedersen-Bjergaard
- Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, Oslo 0316, Norway
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen 2100, Denmark
| | - Elisabeth Leere Øiestad
- Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, Oslo 0316, Norway
- Department of Forensic Sciences, Division of Laboratory Medicine, Oslo University Hospital, P.O. Box 4459 Nydalen, Oslo 0424, Norway
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5
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Yafout M, Aït Mouss R, Bouchafra H, Zarayby L, Sbai El-Otmani I. Overview of the bioanalytical methods used for the determination of benzodiazepines in biological samples and their suitability for emergency toxicological analysis. J Pharmacol Toxicol Methods 2023; 123:107294. [PMID: 37468080 DOI: 10.1016/j.vascn.2023.107294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 07/21/2023]
Abstract
Benzodiazepines are one of the most widely used classes of drugs around the world. They are medically used in different therapeutic areas including insomnia, anxiety, epilepsy, and anesthesia. Unfortunately, these drugs are very widespread in the illicit market for recreational purposes and cause drug dependence, traffic accidents, and criminality. Furthermore, benzodiazepine misuse leads to acute poisoning cases that often end up in hospital emergency rooms. Therefore, it is crucial for hospitals to possess straightforward and efficient bioanalytical techniques that enable the swift detection of benzodiazepines in biological samples. This review provides a general overview of the different bioanalytical techniques used for the detection and quantification of benzodiazepines in biological samples and emphasizes their suitability for emergency toxicological analyzes.
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Affiliation(s)
- Mohamed Yafout
- Laboratory of drug sciences, biomedical research, and biotechnology. Faculty of Medicine and Pharmacy, Hassan II University of Casablanca, Morocco.
| | - Rachid Aït Mouss
- Laboratory of drug sciences, biomedical research, and biotechnology. Faculty of Medicine and Pharmacy, Hassan II University of Casablanca, Morocco
| | - Houda Bouchafra
- Laboratory of drug sciences, biomedical research, and biotechnology. Faculty of Medicine and Pharmacy, Hassan II University of Casablanca, Morocco
| | - Lhoussaine Zarayby
- Laboratory of drug sciences, biomedical research, and biotechnology. Faculty of Medicine and Pharmacy, Hassan II University of Casablanca, Morocco
| | - Ibrahim Sbai El-Otmani
- Laboratory of drug sciences, biomedical research, and biotechnology. Faculty of Medicine and Pharmacy, Hassan II University of Casablanca, Morocco
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Schüller M, McQuade TAP, Bergh MSS, Pedersen-Bjergaard S, Øiestad EL. Determination of tryptamine analogs in whole blood by 96-well electromembrane extraction and UHPLC-MS/MS. TALANTA OPEN 2023. [DOI: 10.1016/j.talo.2022.100171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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7
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Gupta N, Thakur RS, Patel DK. Detection, quantification and degradation kinetic for five benzodiazepines using VAUS-ME-SFO/LC-MS/MS method for water, alcoholic and non-alcoholic beverages. Talanta 2023; 260:124572. [PMID: 37121139 DOI: 10.1016/j.talanta.2023.124572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 03/07/2023] [Accepted: 04/17/2023] [Indexed: 05/02/2023]
Abstract
Benzodiazepines can make victims more docile, they are frequently used in drug-facilitated crimes, such as robberies and sexual assaults. Therefore, it is essential to develop techniques for determining whether these chemicals are present in relation with illegal activity is crucial. Therefore, to determine the presence of five benzodiazepines (alprazolam, clonazepam, diazepam, lorazepam, and oxazepam) in water, alcoholic beverages, and non-alcoholic beverages, a simple and direct, miniaturized, and effective vortex assisted ultrasound based microextraction using solidification of floating organic droplets (VAUS-ME-SFO) in combination with LC-MS/MS was developed. 1-Undecanol and acetonitrile, respectively, served as the extractant and disperser solvents. Many other parameters affect the efficiency of the developed analytical procedure VAUS-ME-SFO/LC-MS/MS. These parameters were optimized using Plackett Burman Design and Central Composite Design to obtain reliable results. The optimum conditions for the extraction were: 10.0 mL of sample; 180 μL acetonitrile, as a dispersive solvent; 200 μL of 1-undecanol, as an extraction solvent; pH 7; 105 s of vortex agitation; 120 s of ultrasonication application and 3 min of centrifugation at 7000 rpm. The benzodiazepines were separated by a chromatographic separation technique carried out by a UPLC system consisting of a binary mobile phase. The solvent system comprises of 0.1% Formic acid in Milli-Q (Solvent A) and 0.1% Formic acid in ACN (Solvent B) with a gradient flow of 3.5 min total analysis time. Under the optimized conditions, the calibration curve was studied in the range of 0.124-7.810 ng mL-1. The regression correlation coefficient (R2) value of all targeted analytes ranges from 0.993 to 0.999. The LOD and LOQ of VAUS-ME-SFO methods using LC-MS/MS analysis range from 0.316 to 0.968 ng mL-1 and 1.055-3.277 ng mL-1 respectively. The repeatability within a day varied from 0.6 to 3.5%, and the reproducibility across days varied from 2.2 to 6.3%. The recoveries ranges for water, alcoholic and non-alcoholic beverages from 70.77 to 114.53%, 63.20-102.21% and 66.23-113.28% respectively. Further, the degradation kinetics was studied to establish the half-life of each targeted analyte in the matrix undertaken in the study. The water samples were classified based on their BDZs residues. This implies that the more health care and anthropogenic activity, the more the BDZs residue will be in water samples.
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Affiliation(s)
- Neha Gupta
- Analytical Chemistry Laboratory and Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Ravindra Singh Thakur
- Analytical Chemistry Laboratory and Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India
| | - Devendra Kumar Patel
- Analytical Chemistry Laboratory and Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research, Vishvigyan Bhawan, 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, Uttar Pradesh, India.
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8
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Zhang YX, Zhang Y, Bian Y, Liu YJ, Ren A, Zhou Y, Shi D, Feng XS. Benzodiazepines in complex biological matrices: Recent updates on pretreatment and detection methods. J Pharm Anal 2023. [DOI: 10.1016/j.jpha.2023.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023] Open
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9
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Ocaña-González JA, Aranda-Merino N, Pérez-Bernal JL, Ramos-Payán M. Solid supports and supported liquid membranes for different liquid phase microextraction and electromembrane extraction configurations. A review. J Chromatogr A 2023; 1691:463825. [PMID: 36731330 DOI: 10.1016/j.chroma.2023.463825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 01/09/2023] [Accepted: 01/22/2023] [Indexed: 01/29/2023]
Abstract
Liquid phase microextraction (LPME) and electromembrane microextraction (EME) can be considered as two of the most popular techniques in sample treatment today. Both techniques can be configurated as membrane-assisted techniques to carry out the extraction. These supports provide the required geometry and stability on the contact surface between two phases (donor and acceptor) and improve the reproducibility of sample treatment techniques. These solid support pore space, once is filled with organic solvents, act as a selective barrier acting as a supported liquid membrane (SLM). The SLM nature is a fundamental parameter, and its selection is critical to carry out successful extractions. There are numerous SLMs that have been successfully employed in a wide variety of application fields. The latter is due to the specificity of the selected organic solvents, which allows the extraction of compounds of a very different nature. In the last decade, solid supports and SLM have evolved towards "green" and environmentally friendly materials and solvents. In this review, solid supports implemented in LPME and EME will be discussed and summarized, as well as their applications. Moreover, the advances and modifications of the solid supports and the SLMs to improve the extraction efficiencies, recoveries and enrichment factors are discussed. Hollow fiber and flat membranes, including microfluidic systems, will be considered depending on the technique, configuration, or device used.
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Affiliation(s)
- Juan Antonio Ocaña-González
- Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, c/Prof. García González s/n, 41012 Seville, Spain
| | - Noemí Aranda-Merino
- Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, c/Prof. García González s/n, 41012 Seville, Spain
| | - Juan Luis Pérez-Bernal
- Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, c/Prof. García González s/n, 41012 Seville, Spain
| | - María Ramos-Payán
- Department of Analytical Chemistry, Faculty of Chemistry, University of Seville, c/Prof. García González s/n, 41012 Seville, Spain.
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Banaszkiewicz L, Woźniak MK, Domagalska E, Kaliszan M, Kot-Wasik A. Long-Term Stability of Benzodiazepines and Z-Hypnotic Drugs in Blood Samples Stored at Varying Temperatures. J Anal Toxicol 2023; 46:1073-1078. [PMID: 35102409 DOI: 10.1093/jat/bkac006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 11/26/2021] [Accepted: 01/30/2022] [Indexed: 01/26/2023] Open
Abstract
Benzodiazepines (BZDs) and Z-drugs are among the most commonly prescribed pharmaceuticals in the world and are considered standard care for various mental illnesses and for the treatment of sleeping and anxiety disorders, alcohol withdrawal, muscle spasms and epilepsy. Some BZDs are not allowed as pharmaceuticals in many countries, and they are used as designer benzodiazepines (DBZDs). All these compounds are typically screened in routine toxicological analyses for forensic purposes. Knowledge of time-dependent decreases in drug concentrations during storage or transport of samples is of considerable significance and allows forensic toxicologists to achieve reliable data, proper interpretation and high-quality results. The aim of this study was to evaluate changes in the amounts of selected BZDs, DBZDs and Z-drugs in blood samples stored at various temperatures. The study involved BZDs (19), DBZDs (3) and Z-drugs (2) spiked into blank blood. Subsequently, the blood samples were stored at various temperatures (room temperature, 4°C, -20°C and -80°C) for up to 6 months. Analyses were performed at 1- to 2-week intervals using liquid chromatography-tandem mass spectrometry. The stability of compounds was evaluated under four temperature conditions over a 6-month period. Some BZDs were stable at all temperatures tested (e.g., diazepam, oxazepam, nordazepam and prazepam) with a degradation rate of only 0-10%. The highest instability was observed for analyte samples kept at room temperature, and the losses in content for some compounds, e.g., lorazepam and chlordiazepoxide, were almost 100%. For other compounds, the stability was clearly different at each tested temperature. To the best of our knowledge, this is one of the first such comprehensive study of the long-term stability of BZDs covering a wide range of different storage temperatures.
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Affiliation(s)
- Laura Banaszkiewicz
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Str., Gdańsk 80-233, Poland
| | - Mateusz Kacper Woźniak
- Department of Forensic Medicine, Faculty of Medicine, Medical University of Gdańsk, 3A Marii Skłodowskiej-Curie Str., Gdańsk 80-210, Poland
| | - Ewa Domagalska
- Department of Forensic Medicine, Faculty of Medicine, Medical University of Gdańsk, 3A Marii Skłodowskiej-Curie Str., Gdańsk 80-210, Poland
| | - Michał Kaliszan
- Department of Forensic Medicine, Faculty of Medicine, Medical University of Gdańsk, 3A Marii Skłodowskiej-Curie Str., Gdańsk 80-210, Poland
| | - Agata Kot-Wasik
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology, 11/12 Narutowicza Str., Gdańsk 80-233, Poland
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11
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Tan Z, Wen Y, Yang K, Zhao X, Yang X, He J. Development and validation of the UPLC-MS method for simultaneous determination of six new psychoactive substances. RSC Adv 2022; 12:26704-26711. [PMID: 36320845 PMCID: PMC9490772 DOI: 10.1039/d2ra04869h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/09/2022] [Indexed: 12/05/2023] Open
Abstract
The combined abuse of benzodiazepines and antipsychotics has become a global problem, and to develop a highly sensitive and selective method for monitoring of benzodiazepine hypnotics and antipsychotics is urgently necessary. In this work, we established a rapid method for the simultaneous determination of benzodiazepines (diazepam, alprazolam, triazolam, and estazolam) and antipsychotic drugs (clozapine, and chlorpromazine) based on ultra performance liquid chromatography-mass spectrometry (UPLC-MS). The accuracy, precision, limit of detection (LOD), limit of quantification (LOQ), specificity, matrix effect and carry-over effect were verified in detail. The results of the recovery and repeat experiments proved that the proposed UPLC-MS method possessed very satisfactory accuracy and precision. The LOD and LOQ of the six psychoactive substances were as low as 0.001-0.005 and 0.005-0.01 μg L-1, respectively. The proposed method was employed to analyze urine samples which were pretreated with a protein precipitation process. The potential influences of precipitants on the analysis results were evaluated statistically, and 0.1% formic acid/acetonitrile/water was selected as the optimum precipitation agent. The detection of the targets was free from matrix and carryover effects.
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Affiliation(s)
- Zhouhong Tan
- College of Pharmacy, Dali University Dali 671000 Yunnan P. R. China
- Yunnan Provincial Key Laboratory of Forensic Science Kunming 650223 Yunnan P. R. China
| | - Yunbo Wen
- Yunnan Provincial Key Laboratory of Forensic Science Kunming 650223 Yunnan P. R. China
| | - Kai Yang
- Public Security Bureau Dali Bai Autonomous Prefecture Dali 671000 Yunnan P. R. China
| | - Xia Zhao
- College of Pharmacy, Dali University Dali 671000 Yunnan P. R. China
| | - Xiaoli Yang
- College of Pharmacy, Dali University Dali 671000 Yunnan P. R. China
| | - Jieli He
- College of Pharmacy, Dali University Dali 671000 Yunnan P. R. China
- Yunnan Provincial Key Laboratory of Forensic Science Kunming 650223 Yunnan P. R. China
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12
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Pérez Orts M, van Asten A, Kohler I. The Evolution Toward Designer Benzodiazepines in Drug-Facilitated Sexual Assault Cases. J Anal Toxicol 2022; 47:1-25. [PMID: 35294022 PMCID: PMC9942444 DOI: 10.1093/jat/bkac017] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/01/2022] [Accepted: 03/15/2022] [Indexed: 11/14/2022] Open
Abstract
Drug-facilitated sexual assault (DFSA) is a crime where the victim is unable to provide sexual consent due to incapacitation resulting from alcohol or drug consumption. Due to the large number of substances possibly used in DFSA, including illicit, prescription and over-the-counter drugs, DFSA faces many toxicological challenges. Benzodiazepines (BZDs) are ideal candidates for DFSA, as they are active at low doses, have a fast onset of action and can be easily administered orally. The last decade has seen the emergence of designer benzodiazepines (DBZDs), which show slight modifications compared with BZDs and similar pharmacological effects but are not controlled under the international drug control system. DBZDs represent an additional challenge due to the number of new entities regularly appearing in the market, their possibly higher potency and the limited knowledge available on their pharmacokinetic and pharmacodynamics properties. Many BZDs and DBZDs have a short half-life, leading to rapid metabolism and excretion. The low concentrations and short time windows for the detection of BZD in body fluids require the use of highly sensitive analysis methods to enable the detection of drugs and their respective metabolites. This review discusses the current state of the toxicological analysis of BZDs and DBZDs in forensic casework and their pharmacokinetic properties (i.e., absorption, distribution, metabolism, and elimination), as well as their analysis in biosamples typically encountered in DFSA (i.e., blood, urine and hair).
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Affiliation(s)
- Mireia Pérez Orts
- Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, Amsterdam 1090 GD, The Netherlands
| | - Arian van Asten
- Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, P.O. Box 94157, Amsterdam 1090 GD, The Netherlands,Co van Ledden Hulsebosch Center (CLHC), Amsterdam Center for Forensic Science and Medicine, 1098 XH Amsterdam, The Netherlands,Centre for Analytical Sciences Amsterdam (CASA), Science Park, 904, 1098 XH Amsterdam, The Netherlands
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13
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Novel Applications of Microextraction Techniques Focused on Biological and Forensic Analyses. SEPARATIONS 2022. [DOI: 10.3390/separations9010018] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
In recent years, major attention has been focused on microextraction procedures that allow high recovery of target analytes, regardless of the complexity of the sample matrices. The most used techniques included liquid-liquid extraction (LLE), solid-phase extraction (SPE), solid-phase microextraction (SPME), dispersive liquid-liquid microextraction (DLLME), microextraction by packed sorbent (MEPS), and fabric-phase sorptive extraction (FPSE). These techniques manifest a rapid development of sample preparation techniques in different fields, such as biological, environmental, food sciences, natural products, forensic medicine, and toxicology. In the biological and forensic fields, where a wide variety of drugs with different chemical properties are analyzed, the sample preparation is required to make the sample suitable for the instrumental analysis, which often includes gas chromatography (GC) and liquid chromatography (LC) coupled with mass detectors or tandem mass detectors (MS/MS). In this review, we have focused our attention on the biological and forensic application of these innovative procedures, highlighting the major advantages and results that have been accomplished in laboratory and clinical practice.
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14
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Parallel artificial liquid membrane extraction of organophosphorus nerve agent degradation products from environmental samples. Anal Chim Acta 2022; 1190:339261. [PMID: 34857147 DOI: 10.1016/j.aca.2021.339261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/26/2021] [Accepted: 11/06/2021] [Indexed: 11/23/2022]
Abstract
An emerging miniaturized high-throughput microextraction technique named Parallel artificial liquid membrane extraction (PALME) was, for the first time, investigated for the extraction of polar alkyl methylphosphonic acids (AMPAs) that are the degradation products of organophosphorus nerve agents. The effect of the key-parameters of the extraction method (nature of the membrane, of the extraction solvent, of the pH values of both donor and acceptor phases, agitation speed, extraction time, temperature and ionic strength) on the extraction recoveries was studied in spiked pure water samples. This led to extraction recoveries in the range of 25-102% for the 5 targeted analytes from water with enrichment factors in the range of 4.50-42.75. The developed PALME-LC-MS/MS method was first evaluated with spiked pure water. LOQs (S/N ≥ 10) were in the range of 0.009-1.141 ng mL-1, linearity above 0.9973 for all the AMPAs and with RSD values below 11%. This method was then applied on simulated waste water, river water and aqueous soil extracts. The achieved LOQs were in the range of 0.011-1.210, 0.013-1.196 and 0.016-6.810 ng mL-1, respectively. A detailed comparison of the performances of this PALME method with those of a previously developed hollow fiber liquid-phase microextraction methods already applied to AMPAs was done thus allowing to demonstrate the easy transfer of methods from HF-LPME to PALME. Moreover, the high-throughput potential of PALME was revealed since 192 samples were processed in parallel during 120 min (37.5 s/sample).
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15
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Membrane-based liquid-phase microextraction of basic pharmaceuticals - A study on the optimal extraction window. J Chromatogr A 2021; 1664:462769. [PMID: 34998024 DOI: 10.1016/j.chroma.2021.462769] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 12/10/2021] [Accepted: 12/20/2021] [Indexed: 11/23/2022]
Abstract
The present paper defines the optimal extraction window (OEW) for three-phase membrane-based liquid-phase microextraction (MP-LPME) in terms of analyte polarity (log P), and anchors this to existing theories for equilibrium partitioning and kinetics. Using deep eutectic solvents (DES) as supported liquid membranes (SLM), we investigated how the OEW was affected by ionic-, hydrogen bond and π-π interactions between the SLM and analyte. Eleven basic model analytes in the range -0.4 < log P < 5.0 were extracted by MB-LPME in a 96-well format. Extraction was performed from 250 µL standard solution in 25 mM phosphate buffer (pH 7.0) into 50 µL of 10 mM HCl acceptor solution (pH 2.0) with mixtures of coumarin, camphor, DL-menthol, and thymol, with and without the ionic carrier di(2-ethylhexyl) phosphate (DEHP), as the SLM. The OEW with pure DES was in the range 2 < log P < 5, and low SLM aromaticity was favorable for the extraction of non-polar analytes. Here, extraction recoveries up to 98% were obtained. Upon addition of DEHP to the SLMs, the OEW shifted to the range -0.5 < log P < 2, and a combination of 5% DEHP and moderate aromaticity resulted in extraction recoveries up to 80% for the polar analytes. Extraction with ionic carrier was inefficient for the non-polar analytes, due to excessive trapping in the SLM. The results from our study show that LPME performs optimally in a relatively narrow log P-window of ≈ 2-3 units and that the OEW is primarily affected by ionic carrier and aromaticity.
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16
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Designer Benzodiazepines: A Review of Toxicology and Public Health Risks. Pharmaceuticals (Basel) 2021; 14:ph14060560. [PMID: 34208284 PMCID: PMC8230725 DOI: 10.3390/ph14060560] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/08/2021] [Accepted: 06/09/2021] [Indexed: 12/11/2022] Open
Abstract
The rising use of designer benzodiazepines (DBZD) is a cat-and-mouse game between organized crime and law enforcement. Non-prohibited benzodiazepines are introduced onto the global drug market and scheduled as rapidly as possible by international authorities. In response, DBZD are continuously modified to avoid legal sanctions and drug seizures and generally to increase the abuse potential of the DBZD. This results in an unpredictable fluctuation between the appearance and disappearance of DBZD in the illicit market. Thirty-one DBZD were considered for review after consulting the international early warning database, but only 3-hydroxyphenazepam, adinazolam, clonazolam, etizolam, deschloroetizolam, diclazepam, flualprazolam, flubromazepam, flubromazolam, meclonazepam, phenazepam and pyrazolam had sufficient data to contribute to this scoping review. A total of 49 reports describing 1 drug offense, 2 self-administration studies, 3 outpatient department admissions, 44 emergency department (ED) admissions, 63 driving under the influence of drugs (DUID) and 141 deaths reported between 2008 and 2021 are included in this study. Etizolam, flualprazolam flubromazolam and phenazepam were implicated in the majority of adverse-events, drug offenses and deaths. However, due to a general lack of knowledge of DBZD pharmacokinetics and toxicity, and due to a lack of validated analytical methods, total cases are much likely higher. Between 2019 and April 2020, DBZD were identified in 48% and 83% of postmortem and DUID cases reported to the UNODC, respectively, with flualprazolam, flubromazolam and etizolam as the most frequently detected substances. DBZD toxicology, public health risks and adverse events are reported.
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17
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Determinations of new psychoactive substances in biological matrices with focus on microextraction techniques: a review of fundamentals and state-of-the-art extraction methods. Forensic Toxicol 2021. [DOI: 10.1007/s11419-021-00582-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Degreef M, Vits L, Berry EM, Maudens KEK, van Nuijs ALN. Quantification of 54 Benzodiazepines and Z-Drugs, Including 20 Designer Ones, in Plasma. J Anal Toxicol 2021; 45:141-153. [PMID: 32507898 DOI: 10.1093/jat/bkaa059] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 04/03/2020] [Accepted: 04/19/2020] [Indexed: 02/07/2023] Open
Abstract
Benzodiazepines are widely used in the treatment of sleep and anxiety disorders, as well as epileptic seizures and alcohol withdrawal because of their broad therapeutic index and low cost. Due to their central nervous system depressant effects they are also often implicated in traffic accidents and drug-related intoxications. With an increasing number of designer benzodiazepines used in a recreational setting, there is a need for analytical methods to be able to quantify both the prescribed and designer benzodiazepines. A liquid chromatography-triple quadrupole mass spectrometry method was developed for the quantification of 34 prescribed and 20 designer benzodiazepines in plasma. Different sample preparation strategies, including protein precipitation, liquid-liquid extraction, solid-phase extraction and mini-QuEChERS, were tested. The best recoveries for all compounds of interest were obtained with a liquid-liquid extraction using methyl-tertiary-butyl-ether and 500 μL plasma. The method was fully validated according to the European Medicines Agency guidelines for all compounds, except pivoxazepam, which is included for qualitative purposes only. In-sample stability issues were observed for cloxazolam, both at ambient temperature and during long-term storage at -20°C. Due to the large number of compounds included, the simple and time-efficient sample preparation and the relatively inexpensive instrumentation used, the presented method can be readily implemented in both therapeutic drug monitoring and forensic analyses.
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Affiliation(s)
- Maarten Degreef
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
| | - Lore Vits
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
| | - Eleanor M Berry
- Toxicological Centre, University of Antwerp, Universiteitsplein 1, B-2610 Antwerp, Belgium
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19
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Schifano F, Napoletano F, Chiappini S, Guirguis A, Corkery JM, Bonaccorso S, Ricciardi A, Scherbaum N, Vento A. New/emerging psychoactive substances and associated psychopathological consequences. Psychol Med 2021; 51:30-42. [PMID: 31327332 DOI: 10.1017/s0033291719001727] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
BACKGROUND The present paper provides an updated review of both the large number of new/novel/emerging psychoactive substances (NPS) and their associated psychopathological consequences. Focus was here given on identification of those NPS being commented in specialised online sources and the related short-/long-term psychopathological and medical ill-health effects. METHODS NPS have been identified through an innovative crawling/navigating software, called the 'NPS.Finder®', created in order to facilitate the process of early recognition of NPS online. A range of information regarding NPS, including chemical and street names; chemical formula; three-dimensional image and anecdotally reported clinical/psychoactive effects, were here made available. RESULTS Using the 'NPS.Finder®' approach, a few thousand NPS were here preliminarily identified, a number which is about 4-fold higher than those figures suggested by European and international drug agencies. NPS most commonly associated with the onset of psychopathological consequences included here synthetic cannabinoids/cannabimimetics; new synthetic opioids; ketamine-like dissociatives; novel stimulants; novel psychedelics and several prescription and over-the-counter medicines. CONCLUSIONS The ever-increasing changes in terms of recreational psychotropics' availability represent a relatively new challenge for psychiatry, as the pharmacodynamics and pharmacokinetics of many NPS have not been thoroughly understood. Health/mental health professionals should be informed about the range of NPS; their intake modalities; their psychoactive sought-after effects; the idiosyncratic psychotropics' combinations and finally, their medical and psychopathological risks.
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Affiliation(s)
- F Schifano
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK
| | | | - S Chiappini
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK
| | - A Guirguis
- Swansea University Medical School, Institute of Life Sciences 2, Swansea University, Singleton Park, Swansea, Wales
| | - J M Corkery
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, UK
| | - S Bonaccorso
- Camden and Islington NHS Mental Health Foundation Trust, London, UK
| | - A Ricciardi
- Camden and Islington NHS Mental Health Foundation Trust, London, UK
- Department of Mental Health, ASL Roma 1, Rome, Italy
| | - N Scherbaum
- LVR-Klinikum Essen, Klinik für Psychiatrie und Psychotherapie, University of Duisburg-Essen, Essen, Germany
| | - A Vento
- Addictions' Observatory (ODDPSS), Rome, Italy
- 'Guglielmo Marconi' University, Rome, Italy
- Department of Mental Health, ASL Roma 2, Rome, Italy
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20
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Jones S, Sisco E, Marginean I. Analysis of benzodiazepines by thermal desorption direct analysis in real time mass spectrometry (TD-DART-MS). ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:5433-5441. [PMID: 33150882 PMCID: PMC9720406 DOI: 10.1039/d0ay01650k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
One of the several classes of novel psychoactive substances (NPSs) that present analytical challenges for forensic chemists is benzodiazepines. Like other NPS classes, the emergence of new compounds within this class continues, creating a need for the development of new techniques and methods that allow for rapid detection and identification of these compounds in forensics laboratories. This work investigates the use of thermal desorption direct analysis in real time mass spectrometry (TD-DART-MS) as a tool for the rapid and sensitive detection of benzodiazepines. A suite of 19 benzodiazepines were investigated to determine their representative responses. The limits of detection (LODs) for these compounds were found to range from 0.05 ng to 8 ng. Competitive ionization studies highlighted that the detection of these compounds in the presence of cutting agents and low amounts of heroin was possible. Additionally, the presence of three complex background matrices that are common in trace detection applications (artificial fingerprint residues, dirt, and plasticizers) was investigated and was shown to have a minimal effect on the detection of these compounds. TD-DART-MS was demonstrated as a potentially powerful tool for rapid on-site or laboratory-based screening.
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Affiliation(s)
- Sydney Jones
- The George Washington University, 1918 F Street, NW Washington, DC 20052, USA
| | - Edward Sisco
- National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899, USA.
| | - Ioan Marginean
- The George Washington University, 1918 F Street, NW Washington, DC 20052, USA
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21
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Ares-Fuentes AM, Lorenzo RA, Fernández P, Carro AM. An analytical strategy for designer benzodiazepines and Z-hypnotics determination in plasma samples using ultra-high performance liquid chromatography/tandem mass spectrometry after microextraction by packed sorbent. J Pharm Biomed Anal 2020; 194:113779. [PMID: 33279303 DOI: 10.1016/j.jpba.2020.113779] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/15/2020] [Accepted: 11/15/2020] [Indexed: 01/19/2023]
Abstract
The illicit market for new psychoactive substances (NPS) is continuously growing. Designer benzodiazepines (DBZD) and Z-hypnotics are increasingly being used for self-medication or recreational purposes. The limited regulation and little biological information available about NPS have raised the need for analytical methods capable of extracting and quantifying them in human biological fluids. In this work, a procedure based on microextraction by packed sorbent (MEPS) in combination with ultra-high performance liquid chromatography and tandem mass spectrometry (UHPLC-MS/MS) has been developed to determine the designer benzodiazepines (clonazolam, deschloroetizolam, nifoxipam, flubromazolam and meclonazepam), and the Z-hypnotics (zolpidem, zaleplon and zopiclone) in plasma. A 3342//16 asymmetric screening design was used to study extraction variables such as the type and volume of eluent, pH, number of extraction cycles, volume of washing solvent and type of sorbent. The ensuing analytical method was validated in terms of linearity by standard addition calibration curves at eight different analyte concentration levels from 0.5-500 ng mL-1. R2 values, limits of detection (LOD) and limits of quantification (LOQ) fell in the ranges 0.9900-0.9988, 0.5-5 ng mL-1 and 1-10 ng mL-1. Intra and interday precision expressed as relative standard deviations, were < 10.6 % and process efficiency ranged from 63 to 117 % for the quality control samples. The proposed method detected zolpidem and various other benzodiazepines in plasma samples from overdoses cases.
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Affiliation(s)
- A M Ares-Fuentes
- Department of Analytical Chemistry, Faculty of Chemistry and Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - R A Lorenzo
- Department of Analytical Chemistry, Faculty of Chemistry and Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - P Fernández
- Institute of Forensic Sciences, Forensic Toxicology Service, Faculty of Medicine, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - A M Carro
- Department of Analytical Chemistry, Faculty of Chemistry and Health Research Institute of Santiago de Compostela (IDIS), University of Santiago de Compostela, 15782 Santiago de Compostela, Spain.
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22
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Recent bionalytical methods for the determination of new psychoactive substances in biological specimens. Bioanalysis 2020; 12:1557-1595. [PMID: 33078960 DOI: 10.4155/bio-2020-0148] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
One of the problems associated with the consumption of new psychoactive substances is that in most scenarios of acute toxicity the possibility of quick clinical action may be impaired because many screening methods are not responsive to them, and laboratories are not able to keep pace with the appearance of new substances. For these reasons, developing and validating new analytical methods is mandatory in order to efficiently face those problems, allowing laboratories to be one step ahead. The goal of this work is to perform a critical review regarding bionalytical methods that can be used for the determination of new psychoactive substances (phenylethylamines, cathinones, synthetic cannabinoids, opioids, benzodiazepines, etc), particularly concerning sample preparation techniques and associated analytical methods.
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23
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Hansen F, Øiestad EL, Pedersen-Bjergaard S. Bioanalysis of pharmaceuticals using liquid-phase microextraction combined with liquid chromatography-mass spectrometry. J Pharm Biomed Anal 2020; 189:113446. [PMID: 32619730 DOI: 10.1016/j.jpba.2020.113446] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 06/19/2020] [Accepted: 06/23/2020] [Indexed: 02/06/2023]
Abstract
In this paper, we review recent research articles on liquid-phase microextraction of drug substances from biological fluids, such as plasma, serum, urine, and saliva. We focus on papers where liquid-phase microextraction is combined with liquid chromatography coupled with mass spectrometry (LC-MS), published in the period 2019-2020. First, we discuss different configurations of liquid-phase microextraction, including dispersive liquid-liquid microextraction (DLLME), dispersive liquid-liquid microextraction based on solidified floating organic droplet (DLLME-SFO), single-drop microextraction (SDME), hollow-fibre liquid-phase microextraction (HF-LPME), solvent bar microextraction (SBME), and electromembrane extraction (EME). Second, we discuss new types of solvents used in liquid-phase microextraction, including ionic liquids, deep eutectic solvents, and nanostructured supramolecular solvents. Especially, we focus on the potential for implementation in routine laboratories, which we consider as the next step for liquid-phase microextraction.
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Affiliation(s)
- Frederik Hansen
- Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, 0316 Oslo, Norway
| | | | - Stig Pedersen-Bjergaard
- Department of Pharmacy, University of Oslo, P.O. Box 1068 Blindern, 0316 Oslo, Norway; Department of Pharmaceutical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
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24
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Microextraction approaches for bioanalytical applications: An overview. J Chromatogr A 2019; 1616:460790. [PMID: 31892411 DOI: 10.1016/j.chroma.2019.460790] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 12/18/2022]
Abstract
Biological samples are usually complex matrices due to the presence of proteins, salts and a variety of organic compounds with chemical properties similar to those of the target analytes. Therefore, sample preparation is often mandatory in order to isolate the analytes from troublesome matrices before instrumental analysis. Because the number of samples in drug development, doping analysis, forensic science, toxicological analysis, and preclinical and clinical assays is steadily increasing, novel high throughput sample preparation approaches are calling for. The key factors in this development are the miniaturization and the automation of the sample preparation approaches so as to cope with most of the twelve principles of green chemistry. In this review, recent trends in sample preparation and novel strategies will be discussed in detail with particular focus on sorptive and liquid-phase microextraction in bioanalysis. The actual applicability of selective sorbents is also considered. Additionally, the role of 3D printing in microextraction for bioanalytical methods will be pinpointed.
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25
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Ask KS, Lid M, Øiestad EL, Pedersen-Bjergaard S, Gjelstad A. Liquid-phase microextraction in 96-well plates - calibration and accurate quantification of pharmaceuticals in human plasma samples. J Chromatogr A 2019; 1602:117-123. [DOI: 10.1016/j.chroma.2019.06.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 06/03/2019] [Accepted: 06/05/2019] [Indexed: 12/24/2022]
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26
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Gjelstad A. Three-phase hollow fiber liquid-phase microextraction and parallel artificial liquid membrane extraction. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.01.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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27
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Ahmad SM, Nogueira JMF. High throughput bar adsorptive microextraction: A novel cost-effective tool for monitoring benzodiazepines in large number of biological samples. Talanta 2019; 199:195-202. [PMID: 30952246 DOI: 10.1016/j.talanta.2019.02.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 01/19/2023]
Abstract
In this work, we propose an innovative high throughput (HT) apparatus using the bar adsorptive microextraction (BAμE) technique, which enables the simultaneous enrichment of up to 100 samples. This novel configuration was combined with microliquid desorption and high-performance liquid chromatography-diode array detection to monitor trace levels of eight benzodiazepines (diazepam, prazepam, bromazepam, oxazepam, lorazepam, alprazolam, temazepam and loflazepate) in biological samples. The proposed methodology was fully developed, optimized and validated, resulting in suitable intraday and interday precision (RSD ≤ 15%), with recovery yields ranging from 33.0% to 104.5%. The lower limits of quantification were between 20.0 and 100.0 µg L-1, using 1.0 mL of urine and 0.5 mL of plasma or serum samples. The application of the proposed methodology to real matrices resulted in average sample preparation time of around 2 min per sample, demonstrating that it is user-friendly, cost-effective and a rapid decision-making tool, whenever large number of samples are involved.
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Affiliation(s)
- S M Ahmad
- Centro de Química e Bioquímica e Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - J M F Nogueira
- Centro de Química e Bioquímica e Centro de Química Estrutural, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal.
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