单词	fluorescein
释义	fluorescein /ˈflʊərəsiːn / /ˈflʊərəsɪn/ /ˈflɔːrəsiːn/ /ˈflɔːrəsɪn/ noun [mass noun] Chemistry An orange dye with a yellowish-green fluorescence, used as an indicator and tracer. A derivative of resorcinol and phthalic anhydride; chemical formula: C20H12O5. To this purpose we have considered four dyes, namely: indo - 1, rhodamine 6G, fluorescein, and pyrene.... Quinine bisulfate was used as the standard for the bisbenzimide dyes, for PIH and ethidium bromide the standard used was rhodamine 101 and fluorescein was used for the cyanine dyes. Anole splenocytes were phagocytically active and produced copious amounts of nitric oxide following exposure to fluorescein labeled E. coli bioparticles. Origin Late 19th century: from fluorescence + -in1.
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