High-Throughput Qualitative and Quantitative Drug Checking by MALDI HRMS

被引:7
作者
Joye, Timothee [1 ,2 ]
Widmer, Christele [1 ]
Morger Megevand, Roxane [3 ]
Longere, Serge [3 ]
Augsburger, Marc [1 ]
Thomas, Aurelien [1 ,2 ]
机构
[1] Geneva Univ Hosp, Lausanne Univ Hosp, CURML, Forens Toxicol & Chem Unit, Geneva, Switzerland
[2] Univ Lausanne, Fac Biol & Med, CURML, Fac Unit Toxicol, Lausanne, Switzerland
[3] Assoc Premiere Ligne, Nuit Blanche, Geneva, Switzerland
关键词
MALDI; drug checking; qualitative; quantitative; HRMS; high throughput; PSYCHOACTIVE SUBSTANCES; MASS-SPECTROMETRY; ILLICIT; TISSUE; HEALTH; ABUSE;
D O I
10.3389/fchem.2020.00695
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Illicit drugs are a global health problem, since both their acute and chronic consumption have negative impacts on the drug user's health. Drug checking facilities are receiving growing interest as they allow drug users to chemically analyze their product prior to consumption to assess the presence of adulterants or other non-expected substances. Such harm reduction programs allow the reduction of the risks associated with drug consumption without encouraging it. In particular, the emergence of new psychoactive substances (NPS) emphasizes the risk for the population increasing the diversity and the lability of illicit drugs on the market. Analytical developments are required to catch up with this rapid evolution and reduce the potential harm caused by such consumption. In this study, we developed a matrix-assisted laser desorption/ionization (MALDI) high-resolution mass spectrometry (HRMS) strategy for the high-throughput qualitative and quantitative analysis of drug checking samples. The use of online-based m/z cloud library for untargeted compound search improved the ability to identify unknown compounds. Sixty-seven drug checking samples were analyzed using this analytical strategy, allowing the detection of 10 designer drugs and several classical drugs of abuse (mainly cocaine and MDMA) as well as adulterants and contaminants. The results were then compared with routine analyses of the same samples using conventional approaches showing similar performance while removing the use of chromatographic separation thus resulting in a significant reduction of the time required for sample preparation and analysis. This study enlightens the potential of MALDI-HRMS as a high-throughput approach allowing to speed-up up to six times the identification and quantification of substances enabling to catch the fast changes on the drug of abuse market. This strategy could be an interesting alternative analytical approach, allowing better prevention and harm reduction for drug users.
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页数:9
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