Ion mobility spectrometry evaluation of cocaine occupational exposure in forensic laboratories

Sergio Armenta, Miguel De La Guardia, Manel Alcalà, Marcelo Blanco, Clara Perez-Alfonso, Nieves Galipienso

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Abstract

An approach, based on ion mobility spectrometry (IMS) has been developed for the control of cocaine in air of the breathing zone of operators, in laboratory surfaces and in nasal mucus of employees to evaluate cocaine exposure in a forensic laboratory. The analytical methodology has been validated in terms of accuracy, precision and limits of detection and results obtained were statistically comparable with those obtained by liquid chromatography. Cocaine concentration in laboratory air increases from 100±35 ng m-3 of a normal day to 10,000 ng m-3 during the manipulation of cocaine seizures. The occupational exposure limit (OEL) for cocaine has not been established which difficult the evaluation of the health effects of continuous exposition to very small doses of cocaine. Cocaine was also found in almost all the analyzed sample surfaces and also was found in nasal mucus of the police officers that were present during the manipulation of cocaine seizures without using a face mask. In summary, cocaine concentrations could present a health hazard to the employees and therefore warrants remediation and some modifications of the manipulation operations have been proposed. © 2014 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)251-258
JournalTalanta
Volume130
DOIs
Publication statusPublished - 1 Dec 2014

Keywords

  • Air samples
  • Biological samples
  • Cocaine
  • Forensic laboratories
  • Ion mobility spectrometry
  • Surface samples

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    Armenta, S., De La Guardia, M., Alcalà, M., Blanco, M., Perez-Alfonso, C., & Galipienso, N. (2014). Ion mobility spectrometry evaluation of cocaine occupational exposure in forensic laboratories. Talanta, 130, 251-258. https://doi.org/10.1016/j.talanta.2014.06.044