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Grasselli G, Arigò A, Palma P, Famiglini G, Cappiello A. Latest Developments in Direct and Non-Direct LC-MS Methods Based on Liquid Electron Ionization (LEI). Crit Rev Anal Chem 2024:1-18. [PMID: 39046707 DOI: 10.1080/10408347.2024.2381543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Mass spectrometry (MS) enables precise identification and quantification of molecules, particularly when combined with chromatography. The advent of atmospheric pressure ionization (API) techniques allowed the efficient coupling of liquid chromatography with MS (LC-MS), extending analyses to nonvolatile and thermolabile compounds. API techniques present limitations such as low informative capacity and reproducibility of mass spectra, increasing instrument complexity and costs. Other challenges include analyzing poorly polar molecules and matrix effects (ME), which negatively impact quantitative analyses, necessitating extensive sample purification or using expensive labeled standards. These limitations prompted the exploration of alternative solutions, leading to the development of the Liquid Electron Ionization (LEI) interface. The system has demonstrated excellent robustness and reproducibility. LEI has been employed to analyze various compounds, including pesticides, drugs of abuse, phenols, polycyclic aromatic hydrocarbons (PAHs), phthalates, and many others. Its versatility has been validated with single quadrupole, triple quadrupole, and QToF detectors, operating in electron ionization (EI) or chemical ionization (CI) modes and with both reverse phase liquid chromatography (RPLC) and normal phase liquid chromatography (NPLC). LEI has also been successfully integrated with the Microfluidic Open Interface (MOI), Membrane Introduction Mass Spectrometry (MIMS), and Microfluidic Water-Assisted Trap Focusing (M-WATF), broadening its application scope and consistently demonstrating promising results in terms of sensitivity and identification power. The most recent advancement is the development of Extractive-Liquid Sampling Electron Ionization-Mass Spectrometry (E-LEI-MS), a surface sampling and real-time analysis technique based on the LEI concept. This review article offers a comprehensive and up-to-date picture of the potential of LEI.
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Affiliation(s)
- Genny Grasselli
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Adriana Arigò
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Pierangela Palma
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Giorgio Famiglini
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
| | - Achille Cappiello
- Department of Pure and Applied Sciences, University of Urbino Carlo Bo, Urbino, Italy
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2
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Carlo MJ, Nanney ALM, Patrick AL. Energy-Resolved In-Source Collison-Induced Dissociation for Isomer Discrimination. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2024. [PMID: 39016059 DOI: 10.1021/jasms.4c00118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/18/2024]
Abstract
While mass spectrometry remains a gold-standard tool for analyte detection, characterization, and quantitation, isomer differentiation is often a challenge. Tandem mass spectrometry is a common approach to increase the selectivity of mass spectrometry and energy-resolved measurements can provide further improvements. However, not all mass spectrometers, especially those that are very compact and affordable, are amenable to such experiments. For instance, single-stage mass spectrometers with soft ionization provide no dissociation information and quadrupole ion trap instruments with resonant excitation do not necessarily provide as informative of energy-resolved curves, for instance when extensive sequential dissociation is responsible for much of the "fingerprint". In-source collision-induced dissociation (IS-CID) is one approach to overcoming these barriers to exploit the analytical selectivity of energy-resolved CID without the need for additional instrumentation; this approach could broaden the reach of these selectivity gains to additional user bases (e.g., educational settings, field portable devices). Here, we specifically investigate energy-resolved IS-CID with the goal of (1) comparing between energy-resolved appearance curves measured with true tandem mass spectrometry on a quadrupole time-of-flight instrument and those obtained using IS-CID, (2) evaluating the approach as a means of differentiating isomers/isobar sets, especially those with similar dissociation patterns, and (3) exploring additional analytical considerations relevant to method development and implementation. This proof-of-concept work establishes the analytical potential of this approach, opening doors for future method development for specific applications.
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Affiliation(s)
- Matthew J Carlo
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Andie L M Nanney
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Amanda L Patrick
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
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3
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Zhou J, Ding S, Sandhu SS, Chang AY, Taechamahaphan A, Gudekar S, Wang J. Submersible voltammetric sensing probe for rapid and extended remote monitoring of opioids in community water systems. Mikrochim Acta 2024; 191:463. [PMID: 38995455 PMCID: PMC11245449 DOI: 10.1007/s00604-024-06520-z] [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: 05/06/2024] [Accepted: 06/19/2024] [Indexed: 07/13/2024]
Abstract
The intensifying global opioid crisis, majorly attributed to fentanyl (FT) and its analogs, has necessitated the development of rapid and ultrasensitive remote/on-site FT sensing modalities. However, current approaches for tracking FT exposure through wastewater-based epidemiology (WBE) are unadaptable, time-consuming, and require trained professionals. Toward developing an extended in situ wastewater opioid monitoring system, we have developed a screen-printed electrochemical FT sensor and integrated it with a customized submersible remote sensing probe. The sensor composition and design have been optimized to address the challenges for extended in situ FT monitoring. Specifically, ZIF-8 metal-organic framework (MOF)-derived mesoporous carbon (MPC) nanoparticles (NPs) are incorporated in the screen-printed carbon electrode (SPCE) transducer to improve FT accumulation and its electrocatalytic oxidation. A rapid (10 s) and sensitive square wave voltammetric (SWV) FT detection down to 9.9 µgL-1 is thus achieved in aqueous buffer solution. A protective mixed-matrix membrane (MMM) has been optimized as the anti-fouling sensor coating to mitigate electrode passivation by FT oxidation products and enable long-term, intermittent FT monitoring. The unique MMM, comprising an insulating polyvinyl chloride (PVC) matrix and carboxyl-functionalized multi-walled carbon nanotubes (CNT-COOH) as semiconductive fillers, yielded highly stable FT sensor operation (> 95% normalized response) up to 10 h in domestic wastewater, and up to 4 h in untreated river water. This sensing platform enables wireless data acquisition on a smartphone via Bluetooth. Such effective remote operation of submersible opioid sensing probes could enable stricter surveillance of community water systems toward timely alerts, countermeasures, and legal enforcement.
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Affiliation(s)
- Jiachi Zhou
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Shichao Ding
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Samar S Sandhu
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - An-Yi Chang
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Anubhap Taechamahaphan
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Shipra Gudekar
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Joseph Wang
- Department of Nanoengineering, University of California San Diego, La Jolla, CA, 92093, USA.
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Patocka J, Wu W, Oleksak P, Jelinkova R, Nepovimova E, Spicanova L, Springerova P, Alomar S, Long M, Kuca K. Fentanyl and its derivatives: Pain-killers or man-killers? Heliyon 2024; 10:e28795. [PMID: 38644874 PMCID: PMC11031787 DOI: 10.1016/j.heliyon.2024.e28795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/23/2024] Open
Abstract
Fentanyl is a synthetic μ-opioid receptor agonist approved to treat severe to moderate pain with faster onset of action and about 100 times more potent than morphine. Over last two decades, abuse of fentanyl and its derivatives has an increased trend, globally. Currently, the United States (US) faces the most serious situation related to fentanyl overdose, commonly referred to as the opioid epidemic. Nowadays, fentanyl is considered as the number one cause of death for adults aged 18-45 in the US. Synthesis and derivatization of fentanyl is inexpensive to manufacture and easily achievable. Indeed, more than 1400 fentanyl derivatives have been described in the scientific literature and patents. In addition, accessibility and efficacy of fentanyl and its derivatives can play a potential role in misuse of these compounds as a chemical weapon. In this review, the properties, general pharmacology, and overdose death cases associated with fentanyl and selected derivatives are presented. Moreover, current opioid epidemic in the US, Moscow theatre hostage crisis, and potential misuse of fentanyl and its derivatives as a chemical weapon are disclosed.
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Affiliation(s)
- Jiri Patocka
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic
| | - Wenda Wu
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Patrik Oleksak
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic
| | - Romana Jelinkova
- NBC Defence Institute, University of Defence, 68201 Vyskov, Czech Republic
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic
| | - Lenka Spicanova
- Philosophical Faculty, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic
| | - Pavlina Springerova
- Philosophical Faculty, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic
| | - Suliman Alomar
- Doping Research Chair, Zoology Department, College of Science, King Saud University, Riyadh-11451, Kingdom of Saudi Arabia
| | - Miao Long
- Key Laboratory of Zoonosis of Liaoning Province, College of Animal Science & Veterinary Medicine, Shenyang Agricultural University, Shenyang 110866, China
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic
- Biomedical Research Centre, University Hospital in Hradec Kralove, Sokolska 581, 50005 Hradec Kralove, Czech Republic
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5
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Argamino CRA, Sebben BG, da Costa G, Towers S, Bogush A, Stevanovic S, Godoi RHM, Kourtchev I. Development and validation of a GC Orbitrap-MS method for the analysis of phthalate esters (PAE) and bis(2-ethylhexyl)adipate (DEHA) in atmospheric particles and its application for screening PM 2.5 from Curitiba, Brazil. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:1579-1592. [PMID: 38407576 DOI: 10.1039/d3ay02197a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/27/2024]
Abstract
Phthalates or phthalic acid esters (PAE) and bis(2-ethylhexyl)adipate (DEHA) are ubiquitous chemicals often used as plasticisers and additives in many industrial products and are classified as both persistent organic pollutants (POPs) and new emerging pollutants (NEPs). Exposure to these chemicals, especially through inhalation, is linked to a wide range of negative health effects, including endocrine disruption. Air particulate matter (PM) with an aerodynamic diameter ≤ 2.5 μm can be enriched with PAEs and DEHA and if inhaled can cause multi-system human toxicity. Therefore, proper monitoring of PAEs and DEHA in PM is required to assess human exposure to these pollutants. In this work, we developed and validated a new and sensitive gas-chromatography high-resolution mass spectrometry (GC-HRMS) method for targeted analysis of PAEs including dimethyl phthalate (DMP), diethyl phthalate (DEP), di-n-butyl phthalate (DBP), benzyl butyl phthalate (BBP), bis(2-ethylhexyl)adipate (DEHA), bis(2-ethylhexyl)phthalate (DEHP), di-n-octyl phthalate (DOP), in PM. Analytical aspects including sample preparation steps and GC-HRMS parameters, e.g., quadrupole isolation window, to enhance method sensitivity have been assessed. The estimated limit of detection (LODs) of target PAEs and DEHA ranged from 5.5 to 17 pg μL-1, allowing their trace-level detection in PM. Extraction efficiencies of 78-101% were obtained for the target compounds. Low DMP and DEP extraction efficiencies from the spiked filter substrates indicated that significant losses of higher volatility PAEs can occur during the sample collection when filter-based techniques are used. This work is the first targeted method based on GC-Orbitrap MS for PAEs and DEHA in environmental samples. The validated method was successfully applied for the targeted analysis of PAEs and DEHA in PM2.5 samples from the eighth most populous city in Brazil, Curitiba. This work is the first to report DBP, DEHA, DEHP, and DOP in urban PM from Brazil. The observed concentrations of PAEs (up to 29 ng m-3) in PM2.5 from Curitiba may not represent the extent of pollution by these toxic compounds since the analysed samples were collected during a COVID-19 restriction when anthropogenic activities were reduced.
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Affiliation(s)
- Cristian Ryan A Argamino
- Centre for Agroecology, Water and Resilience (CAWR), Coventry University, Wolston Lane, Ryton-on-Dunsmore, CV8 3LG, UK.
- School of Engineering, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC 3220, Australia
| | - Bruna G Sebben
- Environmental Engineering Department, Federal University of Parana (UFPR), Curitiba, PR, Brazil
| | - Gabriela da Costa
- Environmental Engineering Department, Federal University of Parana (UFPR), Curitiba, PR, Brazil
| | - Sam Towers
- Centre for Agroecology, Water and Resilience (CAWR), Coventry University, Wolston Lane, Ryton-on-Dunsmore, CV8 3LG, UK.
| | - Anna Bogush
- Centre for Agroecology, Water and Resilience (CAWR), Coventry University, Wolston Lane, Ryton-on-Dunsmore, CV8 3LG, UK.
| | - Svetlana Stevanovic
- School of Engineering, Deakin University, 75 Pigdons Road, Waurn Ponds, VIC 3220, Australia
| | - Ricardo H M Godoi
- Environmental Engineering Department, Federal University of Parana (UFPR), Curitiba, PR, Brazil
| | - Ivan Kourtchev
- Centre for Agroecology, Water and Resilience (CAWR), Coventry University, Wolston Lane, Ryton-on-Dunsmore, CV8 3LG, UK.
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6
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Carlo MJ, Patrick AL. Further exploration of the collision-induced dissociation of select beta blockers: Acebutolol, atenolol, bisoprolol, carteolol, and labetalol. JOURNAL OF MASS SPECTROMETRY : JMS 2023; 58:e4985. [PMID: 37990768 DOI: 10.1002/jms.4985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/20/2023] [Accepted: 10/27/2023] [Indexed: 11/23/2023]
Abstract
Beta blockers are a class of drugs commonly used to treat heart-related diseases; they are also regulated under the World Anti-Doping Agency. Tandem mass spectrometry is often used in the pharmaceutical industry, clinical analysis laboratory, and antidoping laboratory for detection and characterization of drugs and their metabolites. A deeper chemical understanding of dissociation pathways may eventually lead to an improved ability to predict tandem mass spectra of compounds based strictly on their chemical structure (or vice versa), which is especially important for characterization of unknowns such as emerging designer drugs or novel metabolites. In addition to providing insights into dissociation pathways, the use of energy-resolved breakdown curves can produce improved selectivity and lend insights into optimal fragmentation conditions for liquid chromatography-tandem mass spectrometry LC-MS/MS workflows. Here, we perform energy-resolved collision cell and multistage ion trap collision-induced dissociation-mass spectrometry (CID-MS) experiments, along with complementary density functional theory calculations, on five beta blockers (acebutolol, atenolol, bisoprolol, carteolol, and labetalol), to better understand the details of the pathways giving rise to the observed MS/MS patterns. Results from this work are contextualized within previously reported literature on these compounds. New insights into the formation of the characteristic product ion m/z 116 and the pathway leading to characteristic loss of 77 u are highlighted. We also present comparisons of breakdown curves obtained via qToF, quadrupole ion trap, and in-source CID, allowing for differences between the data to be noted and providing a step toward allowing for improved selectivity of breakdown curves to be realized on simple instruments such as single quadrupoles or ion traps.
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Affiliation(s)
- Matthew J Carlo
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi, USA
| | - Amanda L Patrick
- Department of Chemistry, Mississippi State University, Mississippi State, Mississippi, USA
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7
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Medina DAV, Cardoso AT, Borsatto JVB, Lanças FM. Open tubular liquid chromatography: Recent advances and future trends. J Sep Sci 2023; 46:e2300373. [PMID: 37582640 DOI: 10.1002/jssc.202300373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/17/2023]
Abstract
Nano-liquid chromatography (nanoLC) is gaining significant attention as a primary analytical technique across various scientific domains. Unlike conventional high-performance LC, nanoLC utilizes columns with inner diameters (i.ds.) usually ranging from 10 to 150 μm and operates at mobile phase flow rates between 10 and 1000 nl/min, offering improved chromatographic performance and detectability. Currently, most exploration of nanoLC has focused on particle-packed columns. Although open tubular LC (OTLC) can provide superior performance, optimized OTLC columns require very narrow i.ds. (< 10 μm) and demand challenging instrumentation. At the moment, these challenges have limited the success of OTLC. Nevertheless, remarkable progress has been made in developing and utilizing OTLC systems featuring narrow columns (< 2 μm). Additionally, significant efforts have been made to explore larger columns (10-75 μm i.d), demonstrating practical applicability in many situations. Due to their perceived advantages, interest in OTLC has resurged in the last two decades. This review provides an updated outlook on the latest developments in OTLC, focusing on instrumental challenges, achievements, and advancements in column technology. Moreover, it outlines selected applications that illustrate the potential of OTLC for performing targeted and untargeted studies.
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Affiliation(s)
- Deyber Arley Vargas Medina
- Departamento de Química e Física Molecular, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Alessandra Timoteo Cardoso
- Departamento de Química e Física Molecular, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | - João Victor Basolli Borsatto
- Departamento de Química e Física Molecular, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
| | - Fernando Mauro Lanças
- Departamento de Química e Física Molecular, São Carlos Institute of Chemistry, University of São Paulo, São Carlos, São Paulo, Brazil
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8
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Rodríguez-Palma CE, Herráez-Hernández R, Campíns-Falcó P. A modified micro-solid phase extraction device for in-port elution and injection into portable liquid chromatography: A proof-of-concept study. J Chromatogr A 2023; 1705:464216. [PMID: 37480726 DOI: 10.1016/j.chroma.2023.464216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/11/2023] [Accepted: 07/13/2023] [Indexed: 07/24/2023]
Abstract
A micro-solid phase extraction (micro-SPE) device packed with a C18 sorbent (10 mg) has been developed for the enrichment and purification of organic water pollutants prior to their analysis using a portable liquid chromatograph with a dual UV detector. To this end, the sorbent was immobilized at the inlet of a 4 mm syringe filter (0.20 µm), which was modified to reduce its internal volume. The filter was coupled to the needle of the chromatograph. After loading the sample and cleaning the sorbent for analyte purification, the device was installed into the injection port of the chromatograph, and the target compounds were desorbed and transferred directly to the chromatographic column with a small volume of organic solvent. Under optimized conditions, sample volumes as large as 50 mL could be processed with the micro-SPE device, while the analytes were desorbed with only 60 µL of methanol. As a result, efficient preconcentration could be reached, as demonstrated for different water contaminants, namely aclonifen, bifenox, tritosulfuron, triflusulfuron-methyl and caffeine. The proposed micro-SPE device was applied to the analysis of different types of water (river, well, sea, ditch and wastewater). The recoveries of the target compounds in samples ranged from 76 % to 109 %, which allowed their detection at low to sub µg/L levels. All operations were carried out manually, and thus, no additional laboratory instruments such as centrifuges, stirrers or evaporators were required. This proof-of-concept study shows that the proposed micro-SPE approach can be considered a reliable and effective option for the on-site analysis of pollutants in environmental water samples by portable liquid chromatography.
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Affiliation(s)
- C E Rodríguez-Palma
- MINTOTA Research Group, Departament de Química Analítica, Facultat de Química. Universitat de València. Dr. Moliner 50, 46100-Burjassot, València, Spain
| | - R Herráez-Hernández
- MINTOTA Research Group, Departament de Química Analítica, Facultat de Química. Universitat de València. Dr. Moliner 50, 46100-Burjassot, València, Spain.
| | - P Campíns-Falcó
- MINTOTA Research Group, Departament de Química Analítica, Facultat de Química. Universitat de València. Dr. Moliner 50, 46100-Burjassot, València, Spain
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9
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Vargas Medina DA, Maciel EVS, Pereira Dos Santos NG, Lancas FM. The overshadowed role of electron ionization-mass spectrometry in analytical biotechnology. Curr Opin Biotechnol 2023; 82:102965. [PMID: 37393696 DOI: 10.1016/j.copbio.2023.102965] [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: 12/19/2022] [Revised: 05/30/2023] [Accepted: 06/05/2023] [Indexed: 07/04/2023]
Abstract
Target and untargeted analysis of several compounds are crucial methods in important areas such as omics sciences. Gas chromatography coupled to mass spectrometry (GC-MS) is widely used for volatile and thermally stable compounds. In this case, the electron ionization technique (EI) is preferable as it produces highly fragmented and reproducible spectra comparable to spectral libraries. However, only a fraction of target compounds is analyzable by GC without chemical derivatization. Therefore, liquid chromatography (LC) coupled with MS is the most used technique. Contrary to EI, electrospray ionization does not produce reproducible spectra. That is why researchers have been working on interfaces between LC and EI-MS to bridge the gap between those techniques. This short review will discuss advancements, applications, and perspectives on biotechnological analysis.
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Affiliation(s)
- Deyber Arley Vargas Medina
- Laboratory of Chromatography, Institute of Chemistry at Sao Carlos, University of Sao Paulo, P.O Box 780, 13566590 Sao Carlos, Brazil; Clemens Schöpf Institute, Department of Chemistry, Technical University of Darmstadt, 64287 Darmstadt, Germany
| | - Edvaldo Vasconcelos Soares Maciel
- Laboratory of Chromatography, Institute of Chemistry at Sao Carlos, University of Sao Paulo, P.O Box 780, 13566590 Sao Carlos, Brazil; Clemens Schöpf Institute, Department of Chemistry, Technical University of Darmstadt, 64287 Darmstadt, Germany
| | - Natalia Gabrielly Pereira Dos Santos
- Laboratory of Chromatography, Institute of Chemistry at Sao Carlos, University of Sao Paulo, P.O Box 780, 13566590 Sao Carlos, Brazil; Clemens Schöpf Institute, Department of Chemistry, Technical University of Darmstadt, 64287 Darmstadt, Germany
| | - Fernando Mauro Lancas
- Laboratory of Chromatography, Institute of Chemistry at Sao Carlos, University of Sao Paulo, P.O Box 780, 13566590 Sao Carlos, Brazil.
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10
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Pereira Dos Santos NG, Maciel EVS, Vargas Medina DA, Lanças FM. NanoLC-EI-MS: Perspectives in Biochemical Analysis. Int J Mol Sci 2023; 24:11746. [PMID: 37511506 PMCID: PMC10380556 DOI: 10.3390/ijms241411746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/14/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Although LC-MS with atmospheric pressure ionization (API) sources is the primary technique used in modern bioanalytical studies, electron ionization mass spectrometry (EI-MS) can provide some substantial advantages over it. EI-MS is a matrix effect-free technique that provides reproducible and comparable mass spectra, serving as a compound fingerprint for easy identification through automated comparison with spectral libraries. Leveraging EI-MS in biochemical studies can yield critical analytical benefits for targeted and untargeted analyses. However, to fully utilize EI-MS for heavy and non-volatile molecules, a new technology that enables the coupling of liquid chromatography with EI-MS is needed. Recent advancements in nanoLC have addressed the compatibility issues between LC and EI-MS, and innovative interfacing strategies such as Direct-EI, liquid electron ionization (LEI), and Cold-EI have extended the application of EI-MS beyond the determination of volatile organic molecules. This review provides an overview of the latest developments in nanoLC-EI-MS interfacing technologies, discussing their scope and limitations. Additionally, selected examples of nanoLC-EI-MS applications in the field of biochemical analysis are presented, highlighting the potential prospects and benefits that the establishment of this technique can bring to this field.
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Affiliation(s)
| | | | | | - Fernando Mauro Lanças
- Institute of Chemistry of São Carlos, University of São Paulo, São Carlos 13566-590, Brazil
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11
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Wilcox PG, Emmons ED, Pardoe IJ, Kline ND, Guicheteau JA. Quantitative Raman Cross-Sections and Band Assignments for Fentanyl and Fentanyl Analogs. APPLIED SPECTROSCOPY 2023; 77:439-448. [PMID: 36792941 DOI: 10.1177/00037028231160565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Raman cross sections and spectra were measured for five synthetic opioid fentanyl analogs: fentanyl citrate, sufentanil citrate, alfentanil HCl, carfentanil oxalate, and remifentanil HCl. The measurements were performed with excitation wavelengths in the visible (532 nm) and near infrared (785 nm). In addition, density functional theory (DFT) calculations were employed to generate simulated spectra of the compounds and aid in identification of the observed spectral modes. These cross-section measurements and calculations were also used to assess results from a series of measurements of fentanyls cut with other powdered materials. These measurements are valuable for assessment of field-deployable Raman chemical sensors for detection of fentanyl and fentanyl analogs, including when mixed with other materials.
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Affiliation(s)
- Phillip G Wilcox
- US Army Combat Capabilities Development Command Chemical Biological Center, Aberdeen, MD, USA
| | - Erik D Emmons
- US Army Combat Capabilities Development Command Chemical Biological Center, Aberdeen, MD, USA
| | - Ian J Pardoe
- US Army Combat Capabilities Development Command Chemical Biological Center, Aberdeen, MD, USA
| | - Neal D Kline
- US Army Combat Capabilities Development Command Chemical Biological Center, Aberdeen, MD, USA
| | - Jason A Guicheteau
- US Army Combat Capabilities Development Command Chemical Biological Center, Aberdeen, MD, USA
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12
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Wong TF, So PK, Yao ZP. Advances in rapid detection of SARS-CoV-2 by mass spectrometry. Trends Analyt Chem 2022; 157:116759. [PMID: 36035092 PMCID: PMC9391230 DOI: 10.1016/j.trac.2022.116759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 08/01/2022] [Accepted: 08/14/2022] [Indexed: 12/25/2022]
Abstract
COVID-19 has already been lasting for more than two years and it has been severely affecting the whole world. Still, detection of SARS-CoV-2 remains the frontline approach to combat the pandemic, and the reverse transcription polymerase chain reaction (RT-PCR)-based method is the well recognized detection method for the enormous analytical demands. However, the RT-PCR method typically takes a relatively long time, and can produce false positive and false negative results. Mass spectrometry (MS) is a very commonly used technique with extraordinary sensitivity, specificity and speed, and can produce qualitative and quantitative information of various analytes, which cannot be achieved by RT-PCR. Since the pandemic outbreak, various mass spectrometric approaches have been developed for rapid detection of SARS-CoV-2, including the LC-MS/MS approaches that could allow analysis of several hundred clinical samples per day with one MS system, MALDI-MS approaches that could directly analyze clinical samples for the detection, and efforts for the on-site detection with portable devices. In this review, these mass spectrometric approaches were summarized, and their pros and cons as well as further development were also discussed.
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Affiliation(s)
- Tsz-Fung Wong
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region, China.,Research Institute for Future Food and Research Center for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region, China.,State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation) and Shenzhen Key Laboratory of Food Biological Safety Control, Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
| | - Pui-Kin So
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region, China.,Research Institute for Future Food and Research Center for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region, China.,State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation) and Shenzhen Key Laboratory of Food Biological Safety Control, Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
| | - Zhong-Ping Yao
- State Key Laboratory of Chemical Biology and Drug Discovery and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region, China.,Research Institute for Future Food and Research Center for Chinese Medicine Innovation, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong Special Administrative Region, China.,State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation) and Shenzhen Key Laboratory of Food Biological Safety Control, Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
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13
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Vargas Medina DA, Pereira dos Santos NG, Maciel EVS, Lanças FM. Current prospects on nano liquid chromatography coupled to electron ionization mass spectrometry (nanoLC-EI-MS). J LIQ CHROMATOGR R T 2022. [DOI: 10.1080/10826076.2022.2110114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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14
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Maciel EVS, Pereira dos Santos NG, Vargas Medina DA, Lanças FM. Electron ionization mass spectrometry: Quo vadis? Electrophoresis 2022; 43:1587-1600. [DOI: 10.1002/elps.202100392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 04/05/2022] [Accepted: 04/27/2022] [Indexed: 11/10/2022]
Affiliation(s)
| | | | | | - Fernando Mauro Lanças
- Institute of Chemistry of São Carlos University of São Paulo São Carlos São Paulo Brazil
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15
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Porous layer open tubular nano liquid chromatography directly coupled to electron ionization mass spectrometry. J Chromatogr A 2022; 1674:463143. [PMID: 35588591 DOI: 10.1016/j.chroma.2022.463143] [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: 01/06/2022] [Revised: 04/29/2022] [Accepted: 05/11/2022] [Indexed: 11/20/2022]
Abstract
A 25 µm i.d x 1.2 m length PS-DVB porous layer open tubular column (PLOT) was prepared and assessed in the configuration of a nano liquid chromatography coupled to an electron ionization mass spectrometry system (OT-nanoLC-EI-Ms), via the direct insertion of the column outlet into the ionization source. The developed system's operational parameters were comprehensively studied, and the setup performance was investigated employing both unidimensional and column switching configurations. As a result, the OT-nanoLC-EI-MS system demonstrated competitive applicability in separating non-amenable ESI compounds, such as polyaromatic hydrocarbons (PAHs) and non-amenable GC compounds such as thermolabile pesticides. Furthermore, with excellent chromatographic performance, the PLOT columns can work under more compatible EI-detection conditions - such as the elution with 100% organic solvent. For example, PAHs retention factors ranged between 1.5 and 2.2 for 100% MeCN mobile phase, and more than 33,000 plates per meter for naphthalene at 50 nL/min flow rate. In analyzing thermolabile pesticides, the column switching PLOT-nanoLC-EI-MS system provided LODs of 25 µg/L, demonstrating suitable intra e interday reproducibility (% RSD < 13%, n = 3), and possibilities the direct injection of raw samples with suitable robustness.
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16
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Towards in field miniaturized liquid chromatography: biocides in wastewater as a proof of concept. J Chromatogr A 2022; 1673:463119. [DOI: 10.1016/j.chroma.2022.463119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/22/2022] [Accepted: 05/02/2022] [Indexed: 11/18/2022]
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17
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Fulton AC, Vaughan SR, DeGreeff LE. Non-contact Detection of Fentanyl by a Field-portable Ion Mobility Spectrometer. Drug Test Anal 2022; 14:1451-1459. [PMID: 35419977 DOI: 10.1002/dta.3272] [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: 02/08/2022] [Revised: 04/07/2022] [Accepted: 04/07/2022] [Indexed: 11/10/2022]
Abstract
Rapid on-site detection of fentanyl is paramount for the safety of law enforcement and other first responders. Due to the opioid epidemic, death by overdose is at an all-time high with fentanyl adulteration as the main assailant. Providing a user-friendly method for the presumptive detection of fentanyl will increase safety for first responders. Ion mobility spectrometry (IMS) provides a quick, affordable, and accurate method for detecting fentanyl. Currently, most methods for detecting fentanyl requires manipulation or handling of the highly potent substance. A recent comparative analysis study on the headspace of fentanyl determined N-phenylpropanamide (NPPA) a target analyte for fentanyl enabling vapor detection. Here, we demonstrate the development of a handheld IMS method for vapor detection of the target analyte for fentanyl. An alarm was programmed into the handheld IMS device for the detection of NPPA. The system was able to accurately detect NPPA in samples of reference-grade fentanyl and diluted reference-grade fentanyl, as well as 3.67 mg of fentanyl from samples confiscated from the U.S. border. Common adulterants and over-the-counter drugs were tested and resulted in a false alarm rate of 0 for substances sampled. The limit of detection was determined to be as low as 5 ng of NPPA. Overall, the development of this user-friendly, non-contact method has considerable promise for near real-time non-contact detection of fentanyl increasing safety of first responders.
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Affiliation(s)
- Ashley C Fulton
- American Society for Engineering Education post-doctoral fellow at the Naval Research Laboratory, Washington, DC, United States
| | - Stephanie R Vaughan
- National Research Council post-doctoral fellow at the Naval Research Laboratory, Washington, DC, United States
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18
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Detection of N-phenylpropanamide vapor from fentanyl materials by secondary electrospray ionization-ion mobility spectrometry (SESI-IMS). TALANTA OPEN 2022. [DOI: 10.1016/j.talo.2022.100114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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19
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Hauck BC, Riley PC, Ince BS. Effect of environmental conditions on the performance of fentanyl field detection tests. Forensic Chem 2022. [DOI: 10.1016/j.forc.2021.100394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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20
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Smith CD, Katilie CJ, Giordano BC, Collins GE. Assessment of Opioid Surrogates for Ion Mobility Spectrometry Testing (Part II). Forensic Chem 2022. [DOI: 10.1016/j.forc.2022.100405] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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21
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Smith CD, Giordano BC, Collins GE. Assessment of Opioid Surrogates for Colorimetric Testing (Part I). Forensic Chem 2022. [DOI: 10.1016/j.forc.2022.100398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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22
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Patel SV, Lurie IS. The use of portable separation devices for forensic analysis: A review of recent literature. Forensic Chem 2021. [DOI: 10.1016/j.forc.2021.100365] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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23
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Vaughan SR, Fulton AC, DeGreeff LE. Comparative analysis of vapor profiles of fentalogs and illicit fentanyl. Anal Bioanal Chem 2021; 413:7055-7062. [PMID: 34746963 DOI: 10.1007/s00216-021-03670-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/03/2021] [Accepted: 09/15/2021] [Indexed: 11/30/2022]
Abstract
Availability of fentanyl is at a record high with 3138 kg of fentanyl and related substances being seized in 2019. Fentanyl's high toxicity makes a lethal dose for most mere milligrams. With such a high potency and a consistent rise of abuse, the chances of injury or death of frontline workers increase with every interaction. Development of a non-contact detection method for fentanyl would decrease the chances of a workplace mishap. To aid in the development of a non-contact detection method, target analytes in the vapor profile of fentanyl need to be identified. In order to achieve this goal, semi-quantitative headspace analysis of fentanyl analogs and confiscated fentanyl exhibits was accomplished using solid-phase microextraction and gas chromatography coupled with mass spectrometry (SPME-GC-MS). The vapor signatures of these samples were compared to a previously reported reference-grade fentanyl vapor signature to determine the target analyte(s) for fentanyl detection in the vapor phase. A total of 20 fentalogs and confiscated exhibits, with masses ranging from 2 to 19 mg, were sampled. N-Phenylpropanamide(NPPA) or N-phenethyl-4-piperidone(NPP) was identified as target analytes in 75% of these samples. This is a crucial component for the development of a non-contact detection method for fentanyl.
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Affiliation(s)
- Stephanie R Vaughan
- National Research Council Postdoctoral Fellow at the Naval Research Laboratory, 4555 Overlook Ave. SW, Washington, DC, USA.
| | - Ashley C Fulton
- American Society for Engineering Education Postdoctoral Fellow at the Naval Research Laboratory, 4555 Overlook Ave. SW, Washington, DC, USA
| | - Lauryn E DeGreeff
- Formerly Naval Research Laboratory, Code 6181, 4555 Overlook Ave. SW, Washington, DC, USA
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24
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Sisco E, Burns A, Moorthy A. Development and evaluation of a synthetic opioid targeted gas chromatography mass spectrometry (GC-MS) method. J Forensic Sci 2021; 66:2369-2380. [PMID: 34459514 PMCID: PMC9922096 DOI: 10.1111/1556-4029.14877] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 07/28/2021] [Accepted: 08/10/2021] [Indexed: 02/06/2023]
Abstract
As seized drug casework becomes increasingly complex due to the continued prevalence of emerging drugs, laboratories are often looking for new analytical approaches including developing methods for the analysis of specific compounds classes. Recent efforts have focused on the development of targeted gas chromatography mass spectrometry (GC-MS) confirmation methods to compliment the information-rich screening results produced by techniques like direct analysis in real time mass spectrometry (DART-MS). In this work, a method for the confirmation of synthetic opioids and related compounds was developed and evaluated. An 11-component test solution was used to develop a method that focused on minimizing overlapping retention time acceptance windows and understanding the influence of instrument parameters on reproducibility and sensitivity. Investigated settings included column type, flow rate, temperature program, inlet temperature, source temperature, and tune type. Using a DB-200 column, a 35-min temperature ramped method was created. It was evaluated against a suite of 222 synthetic opioids and related compounds, and successfully differentiated all but four compound pairs based on nonoverlapping retention time acceptance windows or objectively different mass spectra. Compared to a general confirmatory method used in casework, the targeted method was up to 25 times more sensitive and provided at least a two-fold increase in retention time differences. Analysis of extracts from actual case samples successfully demonstrated utility of the method and showed no instance of carryover, although the high polarity column required wider retention time windows than other columns.
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Affiliation(s)
| | - Amber Burns
- Maryland State Police Forensic Sciences Division
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25
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Langford JB, Lurie IS. Use of micro, capillary, and nano liquid chromatography for forensic analysis. J Sep Sci 2021; 45:38-50. [PMID: 34626162 DOI: 10.1002/jssc.202100631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/28/2021] [Accepted: 09/29/2021] [Indexed: 01/03/2023]
Abstract
The use of micro, capillary, and nano liquid chromatography systems for forensic analysis has excellent potential. In a field where sample size is often limited, several studies have presented the viability of capillary columns with microflow and nanoflow, and when using mass spectrometric analysis limits of detection can be improved. Reduction in flow rates result in significant reduction in operating costs. Recent advances in miniaturized liquid chromatography systems also aim at in-laboratory and on-site detection, which have already been applied to forensic drug cases. This critical review will discuss the advantages, disadvantages, and applicability of microflow and nano liquid chromatography. In this regard, included in this article is a discussion of some promising areas not yet applied to forensic research.
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Affiliation(s)
- Joel B Langford
- Department of Forensic Science, The George Washington University, Washington, DC, 20007, USA
| | - Ira S Lurie
- Department of Forensic Science, The George Washington University, Washington, DC, 20007, USA
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26
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Hemida M, Ghiasvand A, Gupta V, Coates LJ, Gooley AA, Wirth HJ, Haddad PR, Paull B. Small-Footprint, Field-Deployable LC/MS System for On-Site Analysis of Per- and Polyfluoroalkyl Substances in Soil. Anal Chem 2021; 93:12032-12040. [PMID: 34436859 DOI: 10.1021/acs.analchem.1c02193] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Per- and polyfluoroalkyl substances (PFASs) are emerging environmental pollutants of global concern. For rapid field site evaluation, there are very few sensitive, field-deployable analytical techniques. In this work, a portable lightweight capillary liquid chromatography (capLC) system was coupled with a small footprint portable mass spectrometer and configured for field-based applications. Further, an at-site ultrasound-assisted extraction (pUAE) methodology was developed and applied with a portable capLC/mass spectrometry (MS) system for on-site analysis of PFASs in real soil samples. The influential variables on the integration of capLC with MS and on the resolution and signal intensity of the capLC/MS setup were investigated. The important parameters affecting the efficiency of the pUAE method were also studied and optimized using the response surface methodology based on a central composite design. The mean recovery for 11 PFASs ranged between 70 and 110%, with relative standard deviations ranging from 3 to 12%. In-field method sensitivity for 12 PFASs ranged from 0.6 to 0.1 ng/g, with wide dynamic ranges (1-600 ng/g) and excellent linearities (R2 > 0.991). The in-field portable system was benchmarked against a commercial lab-based LC-tandem MS (MS/MS) system for the analysis of PFASs in real soil samples, with the results showing good agreement. When deployed to a field site, 12 PFASs were detected and identified in real soil samples at concentrations ranging from 8.1 ng/g (for perfluorooctanesulfonic acid) to 2935.0 ng/g (perfluorohexanesulfonic acid).
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Affiliation(s)
- Mohamed Hemida
- ARC Training Centre for Portable Analytical Separation Technologies (ASTech), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia.,Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Alireza Ghiasvand
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia.,ARC Centre of Excellence for Electromaterials Science (ACES), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Vipul Gupta
- Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia.,ARC Centre of Excellence for Electromaterials Science (ACES), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Lewellwyn J Coates
- ARC Training Centre for Portable Analytical Separation Technologies (ASTech), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia.,Trajan Scientific and Medical, 7 Argent Place, Ringwood, Victoria 3134, Australia
| | - Andrew A Gooley
- ARC Training Centre for Portable Analytical Separation Technologies (ASTech), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia.,Trajan Scientific and Medical, 7 Argent Place, Ringwood, Victoria 3134, Australia
| | - Hans-Jürgen Wirth
- ARC Training Centre for Portable Analytical Separation Technologies (ASTech), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia.,Trajan Scientific and Medical, 7 Argent Place, Ringwood, Victoria 3134, Australia
| | - Paul R Haddad
- ARC Training Centre for Portable Analytical Separation Technologies (ASTech), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia.,Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
| | - Brett Paull
- ARC Training Centre for Portable Analytical Separation Technologies (ASTech), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia.,Australian Centre for Research on Separation Science (ACROSS), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia.,ARC Centre of Excellence for Electromaterials Science (ACES), School of Natural Sciences, University of Tasmania, Hobart, Tasmania 7001, Australia
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27
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Jornet-Martínez N, Herráez-Hernández R, Campíns-Falcó P. Scopolamine analysis in beverages: Bicolorimetric device vs portable nano liquid chromatography. Talanta 2021; 232:122406. [PMID: 34074397 DOI: 10.1016/j.talanta.2021.122406] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 04/01/2021] [Accepted: 04/06/2021] [Indexed: 10/21/2022]
Abstract
Scopolamine (SCP) is often involved in sexual assaults and robberies, particularly in recreational environments. Therefore, analytical tools are required for the analysis of this compound amenable for the field. In this work, a sensor for SCP is described based on the entrapment of KMnO4 into polydimethylsiloxane (PDMS). The possibility of using KMnO4 in combination with the reagent 1,2-naphtoquinone-4-sulfonate (NQS) giving a double sensor acting as a bicolorimetric device is also demonstrated. In contact with the sample, the PDMS composite delivers MnO4-, which reacts rapidly with SCP under basic conditions causing a change of the color of the solution that can be related to the concentration of drug using both, absorbances and color coordinates, while the NQS part of the sensor remains unchanged. After an exposure time to the sensors of 10 min, satisfactory linearity was obtained for concentrations of SCP up to 865 μg/mL, being the limit of detection (LOD) 108 μg/mL. A method using a portable nano liquid chromatograph with detection at 255 nm has been also developed; in this case the LOD was 100 μg/mL and the working linear interval was 250-2000 μg/mL. The precision, expressed as relative standard deviation (RDS), was ≤8% for both methods. Different beverages (cola, cola-whisky, tonic water-vodka, red wine and green tea) were assayed. The potential of the two proposed approaches for on-site tests is discussed.
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Affiliation(s)
- N Jornet-Martínez
- MINTOTA Research Group, Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100, Burjassot, Valencia, Spain.
| | - R Herráez-Hernández
- MINTOTA Research Group, Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100, Burjassot, Valencia, Spain
| | - P Campíns-Falcó
- MINTOTA Research Group, Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100, Burjassot, Valencia, Spain.
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28
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Famiglini G, Palma P, Termopoli V, Cappiello A. The history of electron ionization in LC-MS, from the early days to modern technologies: A review. Anal Chim Acta 2021; 1167:338350. [PMID: 34049632 DOI: 10.1016/j.aca.2021.338350] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 02/18/2021] [Accepted: 02/20/2021] [Indexed: 02/06/2023]
Abstract
This review article traces the history of the use of liquid chromatography coupled with mass spectrometry (LC-MS) using electron ionization (EI) from the first attempts up to the present day. At the time of the first efforts to couple LC to MS, 70 eV EI was the most common ionization technique, typically used in gas chromatography-mass spectrometry (GC-MS) and providing highly reproducible mass spectra that could be collated in libraries. Therefore, it was obvious to transport this dominant approach to the early LC-MS coupling attempts. The use of LC coupled to EI-MS is challenging mainly due to restrictions related to high-vacuum and high-temperature conditions required for the operation of EI and the need to remove the eluent carrying the analyte before entering the ion source. The authors will take readers through a journey of about 50 years, showing how through the succession of different attempts it has been possible to successfully couple LC with EI-MS, which in principle appear to be incompatible.
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Affiliation(s)
- Giorgio Famiglini
- LC-MS Laboratory, Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy.
| | - Pierangela Palma
- LC-MS Laboratory, Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
| | - Veronica Termopoli
- LC-MS Laboratory, Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
| | - Achille Cappiello
- LC-MS Laboratory, Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy.
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29
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Fanali C, D'Orazio G, Gentili A, Fanali S. Potentiality of miniaturized techniques for the analysis of drugs of abuse. Electrophoresis 2021; 43:190-200. [PMID: 34148240 DOI: 10.1002/elps.202100150] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/13/2021] [Accepted: 06/17/2021] [Indexed: 11/11/2022]
Abstract
Capillary electromigration (CE) and liquid chromatographic techniques (CLC/nano-LC) are miniaturized techniques offering distinct advantages over conventional ones in the field of separation science. Among these, high efficiency, high chromatographic resolution, and use of minute volumes of both mobile phase and sample volumes are the most important. CE and CLC/nano-LC have been applied to the analysis of many compounds including peptides, proteins, drugs, enantiomers, ions, etc. Over the years, the methods described here have also been used for the analysis of compounds of clinical, forensic, and toxicological interest. In this review article, the main features of the mentioned techniques are summarized. Their potentiality for the analysis of drugs of abuse are discussed. Some selected applications in this field in the period of 2015-present are also reported.
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Affiliation(s)
- Chiara Fanali
- Faculty of Science, University Campus Bio-Medico of Rome, Rome, Italy
| | - Giovanni D'Orazio
- Institute for the Biological Systems, National Research Council, Monterotondo, Italy
| | | | - Salvatore Fanali
- Teaching Committee of Ph.D. School in Natural Science and Engineering, University of Verona, Verona, Italy
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30
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Arrizabalaga-Larrañaga A, Nielen MWF, Blokland MH. Hand-Held Diode Laser for On-Site Analysis Using Transportable Mass Spectrometry. Anal Chem 2021; 93:8122-8127. [PMID: 34077188 PMCID: PMC8253484 DOI: 10.1021/acs.analchem.1c01083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
A hand-held laser
diode thermal desorption electrospray ionization
(LDTD-ESI) mass spectrometry (MS) method was developed for rapid screening
of illegal substances in solid samples. To achieve that, a simple,
inexpensive, battery-powered surgical laser diode at 940 nm was employed
to ablate the solid samples. The potential of using a black polytetrafluoroethylene
substrate to enhance the analytes’ desorption to the gas phase
was investigated and demonstrated. Among the optimized ESI parameters,
the solvent (methanol/water, 50:50, v/v) and the
flow rate (50 μL h–1) were critical to obtain
the best sensitivity. The applicability was demonstrated for the rapid
identification of selective androgen receptor modulators (SARMs) in
pills and powders based on accurate mass measurements by time-of-flight
MS. Also, the hand-held LDTD-ESI was combined with a transportable
single quadrupole MS. The same SARMs samples were analyzed, and identifications
were based on in-source cone voltage fragmentation patterns observed.
These initial results demonstrate the applicability of the developed
simplified LDTD-ESI MS method for future on-site testing of organic
compounds in solid samples.
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Affiliation(s)
- Ane Arrizabalaga-Larrañaga
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Av. Diagonal 645, E-08028 Barcelona, Spain
| | - Michel W F Nielen
- Wageningen Food Safety Research (WFSR), Wageningen University & Research, P.O. Box 230, 6700 AE Wageningen, The Netherlands.,Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Marco H Blokland
- Wageningen Food Safety Research (WFSR), Wageningen University & Research, P.O. Box 230, 6700 AE Wageningen, The Netherlands
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31
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Vargas Medina DA, Pereira Dos Santos NG, da Silva Burato JS, Borsatto JVB, Lanças FM. An overview of open tubular liquid chromatography with a focus on the coupling with mass spectrometry for the analysis of small molecules. J Chromatogr A 2021; 1641:461989. [PMID: 33611115 DOI: 10.1016/j.chroma.2021.461989] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 01/29/2021] [Accepted: 02/09/2021] [Indexed: 01/22/2023]
Abstract
Open tubular liquid chromatography (OT-LC) can provide superior chromatographic performance and more favorable mass spectrometry (MS) detection conditions. These features could provide enhanced sensitivity when coupled with electrospray ionization sources (ESI-) and lead to unprecedented detection capabilities if interfaced with a highly structural informative electron ionization (EI) source. In the past, the exploitation of OT columns in liquid chromatography evolved slowly. However, the recent instrumental developments in capillary/nanoLC-MS created new opportunities in developing and applying OT-LC-MS. Currently, the analytical advantages of OT-LC-MS are mainly exploited in the fields of proteomics and biosciences analysis. Nevertheless, under the right conditions, OT-LC-MS can also offer superior chromatographic performance and enhanced sensitivity in analyzing small molecules. This review will provide an overview of the latest developments in OT-LC-MS, focusing on the wide variety of employed separation mechanisms, innovative stationary phases, emerging column fabrication technologies, and new OT formats. In the same way, the OT-LC's opportunities and shortcomings coupled to both ESI and EI will be discussed, highlighting the complementary character of those two ionization modes to expand the LC's detection boundaries in the performance of targeted and untargeted studies.
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Affiliation(s)
| | | | | | | | - Fernando Mauro Lanças
- University of São Paulo, São Carlos, Institute of Chemistry of São Carlos, SP, Brazil.
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Rocío-Bautista P, Famiglini G, Termopoli V, Palma P, Nazdrajić E, Pawliszyn J, Cappiello A. Direct Coupling of Bio-SPME to Liquid Electron Ionization-MS/MS via a Modified Microfluidic Open Interface. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2021; 32:262-269. [PMID: 33213139 PMCID: PMC8016190 DOI: 10.1021/jasms.0c00303] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/04/2020] [Accepted: 11/11/2020] [Indexed: 05/25/2023]
Abstract
We present a modified microfluidic open interface (MOI) for the direct coupling of Bio-SPME to a liquid electron ionization-tandem mass spectrometry (LEI-MS/MS) system as a sensitive technique that can directly analyze biological samples without the need for sample cleanup or chromatographic separations as well as without measurable matrix effects (ME). We selected fentanyl as test compound. The method uses a C18 Bio-SPME fiber by direct immersion (DI) in urine and plasma and the subsequent quick desorption (1 min) in a flow-isolated volume (2.5 μL) filled with an internal standard-acetonitrile solution. The sample is then transferred to an EI source of a triple-quadrupole mass spectrometer via a LEI interface at a nanoscale flow rate. The desorption and analysis procedure requires less than 10 min. Up to 150 samples can be analyzed without observing a performance decline, with fentanyl quantitation at microgram-per-liter levels. The method workflow is extremely dependable, relatively fast, sustainable, and leads to reproducible results that enable the high-throughput screening of various biological samples.
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Affiliation(s)
- Priscilla Rocío-Bautista
- Department
of Chemistry, Life Sciences and Environmental Sustainability, University of Parma, 43121 Parma, Italy
- Department
of Pure and Applied Sciences, University
of Urbino, 61029 Urbino, Italy
| | - Giorgio Famiglini
- Department
of Pure and Applied Sciences, University
of Urbino, 61029 Urbino, Italy
| | - Veronica Termopoli
- Department
of Pure and Applied Sciences, University
of Urbino, 61029 Urbino, Italy
| | - Pierangela Palma
- Department
of Pure and Applied Sciences, University
of Urbino, 61029 Urbino, Italy
- Chemistry
Department, Vancouver Island University
VIU, Nanaimo, BC V9R5S5 Canada
| | - Emir Nazdrajić
- Department
of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Janusz Pawliszyn
- Department
of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada
| | - Achille Cappiello
- Department
of Pure and Applied Sciences, University
of Urbino, 61029 Urbino, Italy
- Chemistry
Department, Vancouver Island University
VIU, Nanaimo, BC V9R5S5 Canada
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33
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Glasscott MW, Vannoy KJ, Iresh Fernando PA, Kosgei GK, Moores LC, Dick JE. Electrochemical sensors for the detection of fentanyl and its analogs: Foundations and recent advances. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116037] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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34
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Brown HM, McDaniel TJ, Fedick PW, Mulligan CC. The current role of mass spectrometry in forensics and future prospects. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:3974-3997. [PMID: 32720670 DOI: 10.1039/d0ay01113d] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mass spectrometry (MS) techniques are highly prevalent in crime laboratories, particularly those coupled to chromatographic separations like gas chromatography (GC) and liquid chromatography (LC). These methods are considered "gold standard" analytical techniques for forensic analysis and have been extensively validated for producing prosecutorial evidentiary data. However, factors such as growing evidence backlogs and problematic evidence types (e.g., novel psychoactive substance (NPS) classes) have exposed limitations of these stalwart techniques. This critical review serves to delineate the current role of MS methods across the broad sub-disciplines of forensic science, providing insight on how governmental steering committees guide their implementation. Novel, developing techniques that seek to broaden applicability and enhance performance will also be highlighted, from unique modifications to traditional hyphenated MS methods to the newer "ambient" MS techniques that show promise for forensic analysis, but need further validation before incorporation into routine forensic workflows. This review also expounds on how recent improvements to MS instrumental design, scan modes, and data processing could cause a paradigm shift in how the future forensic practitioner collects and processes target evidence.
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Affiliation(s)
- Hilary M Brown
- Chemistry Division, Research Department, Naval Air Warfare Center, Weapons Division (NAWCWD), United States Navy Naval Air Systems Command (NAVAIR), China Lake, California 93555, USA.
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35
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May MC, Pavone DC, Lurie IS. The separation and identification of synthetic cathinones by portable low microflow liquid chromatography with dual capillary columns in series and dual wavelength ultraviolet detection. J Sep Sci 2020; 43:3756-3764. [PMID: 32743973 DOI: 10.1002/jssc.202000767] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 07/26/2020] [Accepted: 07/29/2020] [Indexed: 11/09/2022]
Abstract
This study ascertained the viability of a portable liquid chromatograph, operating at low microliter per minute flow, for the analysis of seized drugs at remote sites as well as in laboratory settings. Synthetic cathinones were screened using dual capillary columns in series, C8 and biphenyl, with on-column ultraviolet detection at 255 and 275 nm. The relative retention times of the two columns in series and their peak area absorbance ratio were used to determine if the 16 synthetic cathinones investigated could be uniquely identified in these conditions. Based on these parameters all of the analytes could be distinguished. Representative mixtures of synthetic cathinones were used to determine the repeatability, linearity, and limits of detection of the method. This cost effective and green instrumentation has the potential to satisfy minimum international guidelines for the analysis of seized drugs.
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Affiliation(s)
- Marisa C May
- Department of Forensic Science, The George Washington University, Washington, DC, USA
| | - David C Pavone
- Department of Forensic Science, The George Washington University, Washington, DC, USA
| | - Ira S Lurie
- Department of Forensic Science, The George Washington University, Washington, DC, USA
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36
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Vargas Medina DA, Maciel EVS, de Toffoli AL, Lanças FM. Miniaturization of liquid chromatography coupled to mass spectrometry. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115910] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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37
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Davidson JT, Sasiene ZJ, Jackson GP. The influence of chemical modifications on the fragmentation behavior of fentanyl and fentanyl‐related compounds in electrospray ionization tandem mass spectrometry. Drug Test Anal 2020; 12:957-967. [PMID: 32246896 DOI: 10.1002/dta.2794] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 11/10/2022]
Affiliation(s)
- J. Tyler Davidson
- Department of Forensic and Investigative Science West Virginia University Morgantown WV USA
| | - Zachary J. Sasiene
- C. Eugene Bennett Department of Chemistry West Virginia University Morgantown WV USA
| | - Glen P. Jackson
- Department of Forensic and Investigative Science West Virginia University Morgantown WV USA
- C. Eugene Bennett Department of Chemistry West Virginia University Morgantown WV USA
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