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Fluorescence polarization immunoassays for carbamazepine - comparison of tracers and formats

  • For the antiepileptic drug and anthropogenic marker carbamazepine (CBZ), a fast and cost-effective immunoassay based on fluorescence polarization (FPIA) was developed. The required fluorophore conjugates were synthesized from different fluorescein and CBZ derivatives. The most suitable tracer was CBZ–triglycine–5-(aminoacetamido)fluorescein. Additionally, the applicability of the assay in tubes and on microtiter plates was tested. The first format can be performed in a portable instrument and therefore can be applied in field measurements. The measurement of an individual sample can be carried out within 4 min. This assay shows a measurement range of 2.5–1000 µg L-1 and a test midpoint (or IC50) of 36 µg L-1. The FPIA performed on microtiter plates is useful for the assay development and is suitable for a very high throughput (up to 24 samples in 20 min). The test midpoint of this assay is 13 µg L-1 and the measurement range is 1.5–300 µg L-1. Furthermore, this assay requires smallerFor the antiepileptic drug and anthropogenic marker carbamazepine (CBZ), a fast and cost-effective immunoassay based on fluorescence polarization (FPIA) was developed. The required fluorophore conjugates were synthesized from different fluorescein and CBZ derivatives. The most suitable tracer was CBZ–triglycine–5-(aminoacetamido)fluorescein. Additionally, the applicability of the assay in tubes and on microtiter plates was tested. The first format can be performed in a portable instrument and therefore can be applied in field measurements. The measurement of an individual sample can be carried out within 4 min. This assay shows a measurement range of 2.5–1000 µg L-1 and a test midpoint (or IC50) of 36 µg L-1. The FPIA performed on microtiter plates is useful for the assay development and is suitable for a very high throughput (up to 24 samples in 20 min). The test midpoint of this assay is 13 µg L-1 and the measurement range is 1.5–300 µg L-1. Furthermore, this assay requires smaller sample volumes and less reagents, including the crucial amount of antibody. The applicability of both assays to spiked surface water samples was evaluated. The recovery rates vary between 66–110% on microtiter plates and 81–140% in tubes.zeige mehrzeige weniger

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Metadaten
Autor*innen:Lidia Oberleitner, S.A. Eremin, Andreas Lehmann, L.-A. Garbe, Rudolf SchneiderORCiD
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Analytical methods
Jahr der Erstveröffentlichung:2015
Herausgeber (Institution):Royal Society of Chemistry
Verlag:RSC Publ.
Verlagsort:Cambridge
Jahrgang/Band:7
Ausgabe/Heft:14
Erste Seite:5854
Letzte Seite:5861
DOI:10.1039/c5ay00617a
ISSN:1759-9660
ISSN:1759-9679
Verfügbarkeit des Dokuments:Physisches Exemplar in der Bibliothek der BAM vorhanden ("Hardcopy Access")
Bibliotheksstandort:Sonderstandort: Publica-Schrank
Datum der Freischaltung:20.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:20.08.2015
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