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fluorescein

/flʊˈrɛs.i.ɪn/

翻译: 一种黄色染料,即使高度稀释仍可见,在分析化学中用作吸附指示剂,特别是在硝酸银滴定氯化钠沉淀氯化银时;当氯离子消失、荧光素负离子被吸附时,它变为粉红色。

1 个条目

noun

/flʊˈrɛs.i.ɪn/C2formalscientific
  • zh一种黄色染料,即使高度稀释仍可见,在分析化学中用作吸附指示剂,特别是在硝酸银滴定氯化钠沉淀氯化银时;当氯离子消失、荧光素负离子被吸附时,它变为粉红色。

A yellow dye that remains visible even when highly diluted, used as an absorption indicator in analytical chemistry, particularly when silver nitrate is added to sodium chloride to precipitate silver chloride; it turns pink when no chloride ions remain and negative fluorescein ions are absorbed.

不可数

  1. Fluorescent dyeC2formalscientific

    A synthetic organic compound that appears as a yellow dye and exhibits intense green fluorescence in solution, used widely as a tracer and indicator in chemical and biological applications.

    zh荧光素

    • Fluorescein is commonly used in ophthalmology to stain the cornea for examination.
    • The chemist added fluorescein to the solution to track the flow of the liquid.
    • In the titration, fluorescein served as an absorption indicator, turning pink when the endpoint was reached.

    同义词resorcinolphthalein

词形
  • fluoresceins plural form
  • fluoresceins' possessive plural form
  • fluorescein's possessive singular form