| fluorescein |
a yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed)
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| fluorescence |
light emitted during absorption of radiation of some other (invisible) wavelength
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| fluorescent |
emitting light during exposure to radiation from an external source a lighting fixture that uses a fluorescent lamp brilliantly colored and apparently giving off light; "fluorescent colors"
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| fluorescence microscopy |
light microscopy in which the specimen is irradiated at wavelengths that excite fluorochromes
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| fluorescent antibody technique |
an immunofluorescence technique in which antigen in tissue sections is located by homologous antibody labeled with fluorochrome (the single-layer technique) or by treating the antigen with unlabeled antibody followed by a second layer of labeled antiglobulin which is reactive with the unlabeled antibody (double-layer technique). Variations include direct, indirect, inhibition, and complement staining techniques.
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