Microsampling and enantioselective liquid chromatography coupled to mass spectrometry for chiral bioanalysis of novel psychoactive substances
Copyright © 2023 Elsevier B.V. All rights reserved..
In this paper, the development of efficient enantioselective HPLC methods for the analysis of five benzofuran-substituted phenethylamines, two substituted tryptamines, and three substituted cathinones is described. For the first time, reversed-phase (eluents made up with acidic water-methanol solutions) and polar-ionic (eluent made up with an acetonitrile-methanol solution incorporating both an acidic and a basic additive) conditions fully compatible with mass spectrometry (MS) detectors were applied with a chiral stationary phase (CSP) incorporating the (+)-(18-crown-6)-tetracarboxylic acid chiral selector. Enantioresolution was achieved for nine compounds with α and RS factors up to 1.32 and 5.12, respectively. Circular dichroism (CD) detection, CD spectroscopy in stopped-flow mode and quantum mechanical (QM) calculations were successfully employed to investigate the absolute stereochemistry of mephedrone, methylone and butylone and allowed to establish a (R)<(S) enantiomeric elution order for these compounds on the chosen CSP. Whole blood miniaturized samples collected by means of volumetric absorptive microsampling (VAMS) technology and fortified with the target analytes were extracted following an optimized protocol and effectively analysed by means of an ultra-high performance liquid chromatography-MS system. By this way a proof-of-concept procedure was applied, demonstrating the suitability of the method for quali-quantitative enantioselective assessment of the selected psychoactive substances in advanced biological microsamples. VAMS microsamplers including a polypropylene handle topped with a small tip of a polymeric porous material were used and allowed to volumetrically collect small aliquots of whole blood (10 μL) independently from its density. Highly appreciable volumetric accuracy (bias, in the -8.7-8.1% range) and precision (% CV, in the 2.8-5.9% range) turned out.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:257 |
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| Enthalten in: |
Talanta - 257(2023) vom: 15. Mai, Seite 124332 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Protti, Michele [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 14.03.2023 Date Revised 14.03.2023 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.talanta.2023.124332 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Copyright © 2023 Elsevier B.V. All rights reserved. | ||
| 520 | |a In this paper, the development of efficient enantioselective HPLC methods for the analysis of five benzofuran-substituted phenethylamines, two substituted tryptamines, and three substituted cathinones is described. For the first time, reversed-phase (eluents made up with acidic water-methanol solutions) and polar-ionic (eluent made up with an acetonitrile-methanol solution incorporating both an acidic and a basic additive) conditions fully compatible with mass spectrometry (MS) detectors were applied with a chiral stationary phase (CSP) incorporating the (+)-(18-crown-6)-tetracarboxylic acid chiral selector. Enantioresolution was achieved for nine compounds with α and RS factors up to 1.32 and 5.12, respectively. Circular dichroism (CD) detection, CD spectroscopy in stopped-flow mode and quantum mechanical (QM) calculations were successfully employed to investigate the absolute stereochemistry of mephedrone, methylone and butylone and allowed to establish a (R)<(S) enantiomeric elution order for these compounds on the chosen CSP. Whole blood miniaturized samples collected by means of volumetric absorptive microsampling (VAMS) technology and fortified with the target analytes were extracted following an optimized protocol and effectively analysed by means of an ultra-high performance liquid chromatography-MS system. By this way a proof-of-concept procedure was applied, demonstrating the suitability of the method for quali-quantitative enantioselective assessment of the selected psychoactive substances in advanced biological microsamples. VAMS microsamplers including a polypropylene handle topped with a small tip of a polymeric porous material were used and allowed to volumetrically collect small aliquots of whole blood (10 μL) independently from its density. Highly appreciable volumetric accuracy (bias, in the -8.7-8.1% range) and precision (% CV, in the 2.8-5.9% range) turned out | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Crown ether-based chiral stationary phase | |
| 650 | 4 | |a Novel psychoactive substances (NPSs) | |
| 650 | 4 | |a Stereochemical characterization | |
| 650 | 4 | |a Ultra-high performance liquid chromatography-mass spectrometry (UHPLC-MS) | |
| 650 | 4 | |a Volumetric absorptive microsampling (VAMS) | |
| 650 | 7 | |a Methanol |2 NLM | |
| 650 | 7 | |a Y4S76JWI15 |2 NLM | |
| 700 | 1 | |a Varfaj, Ina |e verfasserin |4 aut | |
| 700 | 1 | |a Carotti, Andrea |e verfasserin |4 aut | |
| 700 | 1 | |a Tedesco, Daniele |e verfasserin |4 aut | |
| 700 | 1 | |a Bartolini, Manuela |e verfasserin |4 aut | |
| 700 | 1 | |a Favilli, Alessandro |e verfasserin |4 aut | |
| 700 | 1 | |a Gerli, Sandro |e verfasserin |4 aut | |
| 700 | 1 | |a Mercolini, Laura |e verfasserin |4 aut | |
| 700 | 1 | |a Sardella, Roccaldo |e verfasserin |4 aut | |
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