Study on electron ionization-mass spectrometry characteristic fragments and cleavage patterns of fentanyl-type new psychoactive substances

IF 2.6 3区医学 Q2 CHEMISTRY, ANALYTICAL

Forensic Chemistry Pub Date : 2023-09-01 DOI:10.1016/j.forc.2023.100518

Xuan Luo , Jing Peng , Kejian Huang , Xiaofeng Liu , Ning Yang , Qiulian Luo

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引用次数: 1

Abstract

Fentanyl-type new psychoactive substances (fentanyl-type NPS) are the primary subclass of synthetic opioid groups in new psychoactive substances (NPS). According to World Drug Report 2022 by the United Nations Office on Drugs and Crime, fentanyl-type NPS are the major cause of overdose deaths in North America, where their abuse is the most severe. Given the multiple modification sites in the structures of fentanyl-type NPS, the derivatization rate is very rapid, causing more difficulties for analysis and identification in forensic laboratories. Because the fragments in electron ionization-mass spectrometry (EI-MS) spectra contain rich structural information and similar compounds have similar MS cleavage patterns and produce similar characteristic fragments, it is crucial to infer the structure of emerging fentanyl-type NPS by summarizing the cleavage patterns and distinct fragments of fentanyl-type NPS EI-MS data. In this study, 49 fentanyl-type NPS were analyzed using gas chromatography-MS (GC–MS) with EI and chemical ionization sources. Subsequently, the EI-MS cleavage rules and characteristic fragments of fentanyl-type NPS were summarized with the assistance of 129 fentanyl-type NPS GC–MS data obtained from www.caymanchem.com. Furthermore, a set of structural analysis procedures was established to determine the structures of emerging fentanyl-type NPS. This procedure laid the foundation for rapid identification and screening of fentanyl-type NPS.

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芬太尼类新型精神活性物质的电子电离-质谱特征片段和解理模式研究

芬太尼型新精神活性物质(Fentanyl-type NPS)是新精神活性物质(NPS)中合成阿片类物质的主要亚类。根据联合国毒品和犯罪问题办公室的《2022年世界毒品报告》，芬太尼类NPS是北美过量死亡的主要原因，其滥用情况最为严重。由于芬太尼型NPS结构中有多个修饰位点，衍生化速度非常快，给法医实验室的分析鉴定带来了更多的困难。由于电子电离-质谱(EI-MS)光谱中的片段含有丰富的结构信息，并且相似的化合物具有相似的MS解理模式并产生相似的特征片段，因此通过总结芬太尼型NPS EI-MS数据的解理模式和不同片段来推断新兴芬太尼型NPS的结构至关重要。本研究采用气相色谱-质谱(GC-MS)对49种芬太尼型NPS进行分析。随后，借助从www.caymanchem.com获取的129份芬太尼型NPS GC-MS数据，总结了芬太尼型NPS的EI-MS解理规律和特征片段。此外，建立了一套结构分析程序来确定新兴芬太尼型NPS的结构。为芬太尼型NPS的快速鉴定和筛选奠定了基础。

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来源期刊

Forensic Chemistry CHEMISTRY, ANALYTICAL-

CiteScore

5.70

自引率

14.80%

发文量

审稿时长

46 days

期刊介绍： Forensic Chemistry publishes high quality manuscripts focusing on the theory, research and application of any chemical science to forensic analysis. The scope of the journal includes fundamental advancements that result in a better understanding of the evidentiary significance derived from the physical and chemical analysis of materials. The scope of Forensic Chemistry will also include the application and or development of any molecular and atomic spectrochemical technique, electrochemical techniques, sensors, surface characterization techniques, mass spectrometry, nuclear magnetic resonance, chemometrics and statistics, and separation sciences (e.g. chromatography) that provide insight into the forensic analysis of materials. Evidential topics of interest to the journal include, but are not limited to, fingerprint analysis, drug analysis, ignitable liquid residue analysis, explosives detection and analysis, the characterization and comparison of trace evidence (glass, fibers, paints and polymers, tapes, soils and other materials), ink and paper analysis, gunshot residue analysis, synthetic pathways for drugs, toxicology and the analysis and chemistry associated with the components of fingermarks. The journal is particularly interested in receiving manuscripts that report advances in the forensic interpretation of chemical evidence. Technology Readiness Level: When submitting an article to Forensic Chemistry, all authors will be asked to self-assign a Technology Readiness Level (TRL) to their article. The purpose of the TRL system is to help readers understand the level of maturity of an idea or method, to help track the evolution of readiness of a given technique or method, and to help filter published articles by the expected ease of implementation in an operation setting within a crime lab.