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Quality assurance in immunoassay performance-temperature effects

  • Temperature is one factor that influences the performance of immunoassays. Most commonly all incubation steps of the immunoassay are performed at ambient temperature. To systematically study the influence of temperature deviations on assay parameters like signal variation coefficients, limit of detection and measurement range, direct competitive enzyme immunoassays for the determination of two anthropogenic markers, caffeine and carbamazepine, were run at different temperatures above and below room temperature during individual assay steps. The temperature during the competition step had the greatest impact on the assay sensitivity yielding changes in test midpoints by a factor of 10 to 15. For carbamazepine, the test midpoints varied from 36 ng L-1, 108 ng L-1 to 378 ng L-1 employing 4 °C, 21 °C, or 37 °C as incubation temperature, respectively. The edge effect can be minimized resulting in a good plate homogeneity with small variation coefficients, when the assay is performed atTemperature is one factor that influences the performance of immunoassays. Most commonly all incubation steps of the immunoassay are performed at ambient temperature. To systematically study the influence of temperature deviations on assay parameters like signal variation coefficients, limit of detection and measurement range, direct competitive enzyme immunoassays for the determination of two anthropogenic markers, caffeine and carbamazepine, were run at different temperatures above and below room temperature during individual assay steps. The temperature during the competition step had the greatest impact on the assay sensitivity yielding changes in test midpoints by a factor of 10 to 15. For carbamazepine, the test midpoints varied from 36 ng L-1, 108 ng L-1 to 378 ng L-1 employing 4 °C, 21 °C, or 37 °C as incubation temperature, respectively. The edge effect can be minimized resulting in a good plate homogeneity with small variation coefficients, when the assay is performed at ambient temperature.zeige mehrzeige weniger

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Metadaten
Autor*innen:Julia Grandke, Ute Resch-GengerORCiD, Wolfram Bremser, L.-A. Garbe, Rudolf SchneiderORCiD
Dokumenttyp:Zeitschriftenartikel
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Analytical methods
Jahr der Erstveröffentlichung:2012
Herausgeber (Institution):Royal Society of Chemistry
Verlag:RSC Publ.
Verlagsort:Cambridge
Ausgabe/Heft:4
Erste Seite:901
Letzte Seite:905
Freie Schlagwörter:Immunoassay; Temperature effects
DOI:10.1039/c2ay05918e
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:19.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:19.04.2012
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