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Analysis Note
remarks on ICP: Na positive
Application
Fluorescein sodium salt is used as an analytical standard in determining the formation of hydroxy radicals, by the ZnO-based photocatalysts under UV-filtered simulated sunlight using spectrofluorometry.[1] It is also used as a calibration standard for the label-free measurements of metabolic events within cells in the living animals using fluorescence lifetime imaging microscopy (FLIM).[2]
It may also be used as an analytical reference standard for the quantification of the analyte in the following:
Soil samples using high-performance liquid chromatography (HPLC).[3]
Coffee samples using high-performance liquid chromatography (HPLC) and capillary electrophoresis (CZE).[4]
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
General description
Fluorescein sodium salt (uranine) is a xanthene dye, which finds applications as a fluorescent tracer and shows the best of fluorescence in the pH range 6 to 11.[5] Uranine is also employed as a coloring additive in drugs and cosmetics. It is known to exhibit optical chemical sensing and fluorescent properties in biological staining procedures.[3]
