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Meikopoulos T, Gika H, Theodoridis G, Begou O. Detection of 26 Drugs of Abuse and Metabolites in Quantitative Dried Blood Spots by Liquid Chromatography-Mass Spectrometry. Molecules 2024; 29:975. [PMID: 38474487 DOI: 10.3390/molecules29050975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/11/2024] [Accepted: 02/16/2024] [Indexed: 03/14/2024] Open
Abstract
A method was developed for the determination of 26 drugs of abuse from different classes, including illicit drugs in quantitative dried blood spots (qDBSs), with the aim to provide a convenient method for drug testing by using only 10 μL of capillary blood. A satisfactory limit of quantification (LOQ) of 2.5 ng/mL for 9 of the compounds and 5 ng/mL for 17 of the compounds and a limit of detection (LOD) of 0.75 ng/mL for 9 of the compounds and 1.5 ng/mL for 17 of the compounds were achieved for all analytes. Reversed-phase liquid chromatography was applied on a C18 column coupled to MS, providing selective detections with both +ESI and -ESI modes. Extraction from the qDBS was performed using AcN-MeOH, 1:1 (v/v), with recovery ranging from 84.6% to 106%, while no significant effect of the hematocrit was observed. The studied drugs of abuse were found to be stable over five days under three different storage conditions (at ambient temperature 21 °C, at -20 °C, and at 35 °C), thus offering a highly attractive approach for drug screening by minimally invasive sampling for individuals that could find application in forensic toxicology analysis.
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Affiliation(s)
- Thomas Meikopoulos
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), 57001 Thessaloniki, Greece
| | - Helen Gika
- BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), 57001 Thessaloniki, Greece
- Laboratory of Forensic Medicine & Toxicology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Georgios Theodoridis
- Laboratory of Analytical Chemistry, Department of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), 57001 Thessaloniki, Greece
- ThetaBiomarkers, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), Balkan Center, 10th Km Thessaloniki-Thermi Rd., P.O. Box 8318, 57001 Thessaloniki, Greece
| | - Olga Begou
- BIOMIC_Auth, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), 57001 Thessaloniki, Greece
- ThetaBiomarkers, Center for Interdisciplinary Research, and Innovation (CIRI-AUTH), Balkan Center, 10th Km Thessaloniki-Thermi Rd., P.O. Box 8318, 57001 Thessaloniki, Greece
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