Consequences of Decontamination Procedures in Forensic Hair Analysis Using Metal-Assisted Secondary Ion Mass Spectrometry Analysis

Eva Cuypers*, Bryn Flinders, Carolien M. Boone, Ingrid J. Bosman, Klaas J. Lusthof, Arian C. Van Asten, Jan Tytgat, Ron M. A. Heeren

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review


Today, hair testing is considered to be the standard method for the detection of chronic drug abuse. Nevertheless, the differentiation between systemic exposure and external contamination remains a major challenge in the forensic interpretation of hair analysis. Nowadays, it is still impossible to directly show the difference between external contamination and use-related incorporation. Although the effects of washing procedures on the distribution of (incorporated) drugs in hair remain unknown, these decontamination procedures prior to hair analysis are considered to be indispensable in order to exclude external contamination. However, insights into the effect Of decontamination protocols on levels and distribution of drugs incorporated in hair are essential to draw the correct forensic conclusions from hair analysis; we studied the consequences of these procedures on the spatial distribution of cocaine in :hair using imaging mass spectrometry. Additionally, using metal-assisted secondary ion mass spectrometry, we are the first to directly show the difference between cocaine-contaminated and user hair without any prior washing procedure.
Original languageEnglish
Pages (from-to)3091-3097
Number of pages7
JournalAnalytical Chemistry
Issue number6
Publication statusPublished - 15 Mar 2016


  • Forensic Sciences
  • Hair/chemistry
  • Humans
  • Metals/chemistry
  • Spectrometry, Mass, Secondary Ion/methods
  • Substance Abuse Detection/methods

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