Analysis of Amphetamine Derivatives in Plasma Using Capillary Zone Electrophoresis Coupled with Laser-Induced Fluorescence after Derivatization on Solid-Phase Extraction Support

Capillary electrophoresis (CE) is a very powerful analytical technique, consuming very small quantities of samples and solvents. Generally, a UV detector is coupled with CE but for the analysis of drugs in biological fluids, it is necessary to use a more sensitive and selective detector su...

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Main Authors: Ludovic Gremaud, Julie Schappler, Jean-Luc Veuthey, Claude Rohrbasser, Serge Rudaz
Format: Article
Language:deu
Published: Swiss Chemical Society 2008-04-01
Series:CHIMIA
Subjects:
Online Access:https://chimia.ch/chimia/article/view/4463
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author Ludovic Gremaud
Julie Schappler
Jean-Luc Veuthey
Claude Rohrbasser
Serge Rudaz
author_facet Ludovic Gremaud
Julie Schappler
Jean-Luc Veuthey
Claude Rohrbasser
Serge Rudaz
author_sort Ludovic Gremaud
collection DOAJ
description Capillary electrophoresis (CE) is a very powerful analytical technique, consuming very small quantities of samples and solvents. Generally, a UV detector is coupled with CE but for the analysis of drugs in biological fluids, it is necessary to use a more sensitive and selective detector such as laser induced fluorescence (LIF). This detector was used to analyze various amphetamine derivatives which do not present native fluorescence and therefore a derivatization tag was employed to produce a fluorescent adduct. Fluorescamine, a fluorogene agent, was selected because it reacts with primary amines of amphetamines to give a fluorescent compound negatively charged, which can be analyzed by CZE-LIF. Taking into account the presence of many interfering compounds in biological fluids, analysis of these compounds requires a sample preparation prior to the analysis. Solid phase extraction (SPE) was selected and the derivatization step included. Analysis of independent plasma samples (n = 6) exhibited a relative standard deviation (RSD) of 8%. A relative recovery of 99% was observed for amphetamine, used as a model compound.
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spelling doaj.art-a4c61a43f186424aad0436b24e6cd7d62022-12-22T03:45:03ZdeuSwiss Chemical SocietyCHIMIA0009-42932673-24242008-04-0162410.2533/chimia.2008.210Analysis of Amphetamine Derivatives in Plasma Using Capillary Zone Electrophoresis Coupled with Laser-Induced Fluorescence after Derivatization on Solid-Phase Extraction SupportLudovic GremaudJulie SchapplerJean-Luc VeutheyClaude RohrbasserSerge Rudaz Capillary electrophoresis (CE) is a very powerful analytical technique, consuming very small quantities of samples and solvents. Generally, a UV detector is coupled with CE but for the analysis of drugs in biological fluids, it is necessary to use a more sensitive and selective detector such as laser induced fluorescence (LIF). This detector was used to analyze various amphetamine derivatives which do not present native fluorescence and therefore a derivatization tag was employed to produce a fluorescent adduct. Fluorescamine, a fluorogene agent, was selected because it reacts with primary amines of amphetamines to give a fluorescent compound negatively charged, which can be analyzed by CZE-LIF. Taking into account the presence of many interfering compounds in biological fluids, analysis of these compounds requires a sample preparation prior to the analysis. Solid phase extraction (SPE) was selected and the derivatization step included. Analysis of independent plasma samples (n = 6) exhibited a relative standard deviation (RSD) of 8%. A relative recovery of 99% was observed for amphetamine, used as a model compound. https://chimia.ch/chimia/article/view/4463AmphetaminesCapillary zone electrophoresisDerivatizationLaser induced fluorescenceSolid phase extraction
spellingShingle Ludovic Gremaud
Julie Schappler
Jean-Luc Veuthey
Claude Rohrbasser
Serge Rudaz
Analysis of Amphetamine Derivatives in Plasma Using Capillary Zone Electrophoresis Coupled with Laser-Induced Fluorescence after Derivatization on Solid-Phase Extraction Support
CHIMIA
Amphetamines
Capillary zone electrophoresis
Derivatization
Laser induced fluorescence
Solid phase extraction
title Analysis of Amphetamine Derivatives in Plasma Using Capillary Zone Electrophoresis Coupled with Laser-Induced Fluorescence after Derivatization on Solid-Phase Extraction Support
title_full Analysis of Amphetamine Derivatives in Plasma Using Capillary Zone Electrophoresis Coupled with Laser-Induced Fluorescence after Derivatization on Solid-Phase Extraction Support
title_fullStr Analysis of Amphetamine Derivatives in Plasma Using Capillary Zone Electrophoresis Coupled with Laser-Induced Fluorescence after Derivatization on Solid-Phase Extraction Support
title_full_unstemmed Analysis of Amphetamine Derivatives in Plasma Using Capillary Zone Electrophoresis Coupled with Laser-Induced Fluorescence after Derivatization on Solid-Phase Extraction Support
title_short Analysis of Amphetamine Derivatives in Plasma Using Capillary Zone Electrophoresis Coupled with Laser-Induced Fluorescence after Derivatization on Solid-Phase Extraction Support
title_sort analysis of amphetamine derivatives in plasma using capillary zone electrophoresis coupled with laser induced fluorescence after derivatization on solid phase extraction support
topic Amphetamines
Capillary zone electrophoresis
Derivatization
Laser induced fluorescence
Solid phase extraction
url https://chimia.ch/chimia/article/view/4463
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