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fluorescein

n. 萤光素

萤光素

WordNet (r) 3.0 (2006) (WordNet)

fluorescein
n 1: 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)
[synonym: {fluorescein}, {fluoresceine}, {fluorescent dye},
{resorcinolphthalein}]

The Collaborative International Dictionary of English v.0.48 (gcide)

fluorescein \fluo`res"ce*in\, fluoresceine \fluo`res"ce*ine\,
fluorescein \flu`o*res"ce*["i]n\, 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.
[1913 Webster]

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英文字典中文字典相关资料:

Fluorescein: Indications, Side Effects, Warnings - Drugs. com
Easy-to-read patient leaflet for Fluorescein Includes indications, proper use, special instructions, precautions, and possible side effects
Fluorescein - StatPearls - NCBI Bookshelf
This article outlines the indications, mechanism of action, adverse event profile, and contraindications for fluorescein to guide the healthcare team in evaluating ophthalmic abnormalities, infection, and pathophysiology, among other conditions
Fluorescein | C20H12O5 | CID 16850 - PubChem
Topical fluorescein is a useful tool in the diagnosis of corneal abrasions, corneal ulcers, herpetic corneal infections, and dry eye Fluorescein angiography is used to diagnose and categorize macular degeneration, diabetic retinopathy, inflammatory intraocular conditions, and intraocular tumors
Fluorescein (intravenous route) - Mayo Clinic
Fluorescein injection is used to help certain parts of the eye (eg, retina, iris) become more visible during eye medical procedures This medicine is to be given only by or under the direct supervision of your doctor
Fluorescein | Fluorescence, Detection, Diagnostics | Britannica
Fluorescein, organic compound of molecular formula C20H12O5 that has wide use as a synthetic colouring agent It is prepared by heating phthalic anhydride and resorcinol over a zinc catalyst, and it crystallizes as a deep red powder with a melting point in the range of 314° to 316° C (597° to 601°
What is Fluorescein? (with pictures) - AllTheScience
Fluorescein is a fluorescent dye which is used in a number of different applications in the sciences and medicine In pure state, fluorescein is a red or orange powder which is dissolved in alkaline solutions to make up a yellow solution which will glow green
Fluorescein - Handbook of Fluorescent Dyes and Probes - Wiley Online . . .
The chapter also includes references on the use, properties, and safety toxicity of fluorescein on humans, animals and the environment It presents a list of imaging labeling applications, biological medical applications and industrial applications of fluorescein
Fluorescein | definition of fluorescein by Medical dictionary
fluorescein A green dye that fluoresces bright yellow in blue or ultraviolet light It is used to tag (label) and thus show up ANTIBODIES in tissues It is also much used by eye specialists (ophthalmologists) to show up ulcers on the cornea and to delineate for photography the blood vessels of the retina
Fluorescein: A Versatile Compound in Chemistry - ChemicalBook
Fluorescein is a widely recognized and extensively used compound in the field of chemistry, known for its intense fluorescence and versatility across various applications This synthetic organic compound is part of the xanthene dye family and has been pivotal in numerous scientific and medical fields due to its unique properties
Fluorescein - PubMed
This article outlines the indications, mechanism of action, adverse event profile, and contraindications for fluorescein to guide the healthcare team in evaluating ophthalmic abnormalities, infection, and pathophysiology, among other conditions

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