Ultraviolet resonance Raman spectroscopy for the detection of cocaine in oral fluid
Authors
D'Elia, Valentina; Montalvo García, Gemma; García Ruiz, Carmen; Ermolenkov, Vladimir V.; Ahmed, Yasmine; [et al.]Identifiers
Permanent link (URI): http://hdl.handle.net/10017/47418DOI: 10.1016/j.saa.2017.07.010
ISSN: 0584-8539
Date
2018-01-05Affiliation
Universidad de Alcalá. Departamento de Química Analítica, Química Física e Ingeniería QuímicaBibliographic citation
Spectrochimica Acta - Part A Molecular Spectroscopy, 2018, v. 188, p. 338-340
Keywords
Raman spectroscopy
Ultraviolet Raman spectroscopy
Cocaine
Oral fluid
Forensic
Project
CCG2015/EXP-028 (Universidad de Alcalá)
Document type
info:eu-repo/semantics/article
Version
info:eu-repo/semantics/publishedVersion
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
© Elsevier, 2018
Access rights
info:eu-repo/semantics/openAccess
Abstract
Detecting and quantifying cocaine in oral fluid is of significant importance for practical forensics. Up to date, mainly destructive methods or biochemical tests have been used, while spectroscopic methods were only applied to pretreated samples. In this work, the possibility of using resonance Raman spectroscopy to detect cocaine in oral fluid without pretreating samples was tested. It was found that ultraviolet resonance Raman spectroscopy with 239-nm excitation allows for the detection of cocaine in oral fluid at 10 mu g/mL level. Further method development will be needed for reaching the practically useful levels of cocaine detection. (C) 2017 Elsevier B.V. All rights reserved.
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