fluo·res·ce·in /-ˈrɛsiən/
螢光素
flu·o·res·ce·in /-ˈɛsɪən/ 名詞
二羥基熒烷,熒光素,氫化熒光素
fluo·res·ce·in, fluo·res·ce·ine, flu·o·res·ce·ïn n. Chem. A yellowish red, crystalline substance, C20H12O5, produced by heating together phthalic anhydride and resorcin; -- so called, from the very brilliant yellowish green fluorescence of its alkaline solutions. It has acid properties, and its salts of the alkalies are known to the trade under the name of uranin.
Syn: -- fluorescein, fluorescent dye, resorcinolphthalein.
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fluorescein
n : 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) [syn: fluoresceine, fluorescent dye, resorcinolphthalein]