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  • Title: Magnetic beads based immunoaffinity capillary electrophoresis of total serum IgE with laser-induced fluorescence detection.
    Author: Chen HX, Busnel JM, Peltre G, Zhang XX, Girault HH.
    Journal: Anal Chem; 2008 Dec 15; 80(24):9583-8. PubMed ID: 18991389.
    Abstract:
    A magnetic beads based immunoaffinity capillary electrophoresis method for total Immunoglobulin E quantification in serum has been developed. The method combines speed, automation ability, and minimal sample consumption. Only 1 microL of serum is required while the whole immunoaffinity capillary electrophoresis method is performed in less than 50 min. The concomitant use of online immunocapture, transient isotachophoresis, and laser-induced fluorescence detection provides a sensitivity in the low picomolar range and a highly linear fluorescence response over 4 orders of magnitude (IgE concentration ranging from 2.4 to 2400 ng/mL). After validation with a reference material, the method has been successfully applied to the quantification of total IgEs in patient sera. The results compared well with classical ImmunoCap data.
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