98%
921
2 minutes
20
With the increasing abuse of fentanyl and its derivatives, it is urgent to develop techniques that can rapidly detect these compounds in different types of matrices. In this work, we developed a miniature mass spectrometer-based method for the fast and on-site analysis of fentanyl compounds. Optimization of several direct sampling procedures such as paper capillary spray cartridge with a miniature mass spectrometry system enables sensitive analysis of multiple fentanyl compounds. This system was evaluated by analysis of fentanyl and its derivatives in several types of beverage, showing limits of detection (LODs) as low as 10 ppb. It has also been applied into analysis of fentanyl compounds on the surface of a dusty plastic bag, showing LODs of 1 ng/cm. A precursor ion scan method was also developed for fast screening of multiple fentanyl compounds. This system has also been applied in the analysis of fentanyl in urine samples.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1016/j.talanta.2020.121057 | DOI Listing |
J Am Soc Mass Spectrom
September 2025
Department of Chemistry and Biochemistry, Florida International University, Miami, Florida 33199, United States.
The escalating prevalence and diversity of fentanyl analogues poses an immediate concern for the global community. Fentanyl and its analogues are the primary contributors to both fatal and nonfatal overdoses in the United States. The most recent instances of fentanyl-related overdoses have been attributed to the illicit production of fentanyl, characterized by its exceptionally potent nature.
View Article and Find Full Text PDFSci Adv
September 2025
Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), National Observations and Research Station for Wetland Ecosystems of the Yangtze Estuary, Department of Environmental Science & Engineering, Fudan University, Shanghai 200443, China.
Fentanyl and its analogs are a global concern, making their accurate identification essential for public health. Here, we introduce Fentanyl-Hunter, a screening platform that uses a machine learning classifier and multilayer molecular network to select and annotate fentanyl compounds using mass spectrometry (MS). Our classification model, based on 772 fentanyl spectra and spectral binning feature engineering, achieved an score of 0.
View Article and Find Full Text PDFDrug Test Anal
September 2025
National Institute of Standards and Technology, Gaithersburg, Maryland, USA.
Over the last several years, there has been an influx of α-agonists into the street drug supply, beginning with the proliferation of xylazine, a potent veterinary sedative. Since 2023, another sedative, medetomidine, has been widely detected. Medetomidine, broadly, encompasses two enantiomers-dexmedetomidine and levomedetomidine-with the dex enantiomer being pharmacologically active and present in human-use pharmaceuticals.
View Article and Find Full Text PDFInt J Drug Policy
August 2025
Department of Psychiatry, University of California, San Diego, United States.
Background: The illicit manufacture of fentanyl results in product of unknown purity, contributing to overdose risk. However, data on the purity of illicitly manufactured fentanyl (IMF) in the United States typically comes from law enforcement sources and almost no information relevant to retail-level product is made available. We aim to quantify IMF purity among samples from a community-based drug checking program operating at four geographic sites in Los Angeles, California.
View Article and Find Full Text PDFJ Chem Phys
August 2025
Faculty of Synthetic Biology, Shenzhen University of Advanced Technology, Shenzhen 518107, China.
The pumpkin-like supramolecular container Cucurbit[8]uril (CB8) is a promising drug carrier and detoxifier that stably coordinates a series of structurally diverse guests with high association constants. Its methylated form, Me4CB8, achieves better solubility yet maintains its biocompatibility, thus serving as a promising supramolecular container. Host-guest binding involving the methylated ring is difficult to model due to the lack of an accurate transferable force field and the complex binding-mode space when coordinating structurally complex abused drugs (e.
View Article and Find Full Text PDF