PMID- 32070623 OWN - NLM STAT- MEDLINE DCOM- 20201007 LR - 20201007 IS - 1873-3573 (Electronic) IS - 0039-9140 (Linking) VI - 211 DP - 2020 May 1 TI - Use of a newly-developed portable capillary electrophoresis analyser to detect drugs of abuse in oral fluid: A case study. PG - 120662 LID - S0039-9140(19)31295-0 [pii] LID - 10.1016/j.talanta.2019.120662 [doi] AB - The aim of the current study was to develop and validate an analytical method to determine whether drugs of abuse (DOA) were present in oral fluid (OF) using a newly-developed, portable capillary electrophoresis (CE) instrument coupled to a deep ultra-violet fluorescence detector (FD). The performance of this portable CE-FD DOA analyser was tested at the Weekend Festival Baltic (Parnu, Estonia) between 2016 and 2018 as well as on the roadside OF samples collected by the police. The study reported 128 analysed cases in which persons were allegedly found to have been under the influence of DOA. The samples were analysed for amphetamine (AMP), methamphetamine (METH), 3,4-methylenedioxy-methamphetamine (MDMA), 3,4-methylenedioxyamphetamine (MDA), 3,4-methylenedioxy-N-ethylamphetamine (MDEA), cocaine (COC) and cocaethylene (COET). Subsequent toxicological reports revealed that 26% cases were negative, and 74% were positive. The most frequently detected and quantified DOA was MDMA (68 cases, 62%). A comparative study was conducted to validate the accuracy of using the CE-FD DOA analyser versus classic high-performance liquid chromatography coupled to mass spectrometry (HPLC-ESI-MS). Diagnostic statistics for CE-FD DOA were also evaluated and were higher than 99.5%. In addition, all zeta-scores were lower than 2 when both methods were compared, showing that the CE-FD analyser can be implemented as a reliable, sensitive and convenient tool for roadside and workplace testing for DOA. CI - Copyright (c) 2019 Elsevier B.V. All rights reserved. FAU - Saar-Reismaa, Piret AU - Saar-Reismaa P AD - Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia Tee 15, 12618, Tallinn, Estonia. FAU - Brilla, Chelsa-Ann AU - Brilla CA AD - Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia Tee 15, 12618, Tallinn, Estonia. FAU - Leiman, Kristiina AU - Leiman K AD - Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia Tee 15, 12618, Tallinn, Estonia. FAU - Kaljurand, Mihkel AU - Kaljurand M AD - Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia Tee 15, 12618, Tallinn, Estonia. FAU - Vaher, Merike AU - Vaher M AD - Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia Tee 15, 12618, Tallinn, Estonia. FAU - Kulp, Maria AU - Kulp M AD - Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia Tee 15, 12618, Tallinn, Estonia. FAU - Mazina-Sinkar, Jekaterina AU - Mazina-Sinkar J AD - Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Akadeemia Tee 15, 12618, Tallinn, Estonia. Electronic address: jekaterina.mazina@gmail.com. LA - eng PT - Journal Article DEP - 20191220 PL - Netherlands TA - Talanta JT - Talanta JID - 2984816R RN - 0 (Amphetamines) RN - 0 (Illicit Drugs) RN - FJO3071W5Y (cocaethylene) RN - I5Y540LHVR (Cocaine) SB - IM MH - Adult MH - Aged MH - Amphetamines/*analysis MH - Cocaine/*analogs & derivatives/analysis MH - Female MH - Fluorescence MH - Humans MH - Illicit Drugs/*analysis MH - Male MH - Middle Aged MH - Saliva/*chemistry MH - Substance Abuse Detection/*methods MH - Young Adult OTO - NOTNLM OT - Capillary electrophoresis OT - Drug analyser OT - Drugs of abuse OT - Fluorescence OT - On-site testing OT - Oral fluid COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2020/02/20 06:00 MHDA- 2020/10/08 06:00 CRDT- 2020/02/20 06:00 PHST- 2019/09/14 00:00 [received] PHST- 2019/12/18 00:00 [revised] PHST- 2019/12/19 00:00 [accepted] PHST- 2020/02/20 06:00 [entrez] PHST- 2020/02/20 06:00 [pubmed] PHST- 2020/10/08 06:00 [medline] AID - S0039-9140(19)31295-0 [pii] AID - 10.1016/j.talanta.2019.120662 [doi] PST - ppublish SO - Talanta. 2020 May 1;211:120662. doi: 10.1016/j.talanta.2019.120662. Epub 2019 Dec 20.