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absorbance
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absorbance — [ apsɔrbɑ̃s ] n. f. • v. 1970; de absorbant ♦ Opt. Grandeur mesurant la diminution d intensité d un rayonnement après un parcours dans un milieu absorbant (⇒ absorption). ● absorbance nom féminin (de absorber) Grandeur caractérisant le pouvoir… … Encyclopédie Universelle
Absorbance — Optical density redirects here. Optical density can also refer to index of refraction.[1] In spectroscopy, the absorbance A (also called optical density)[2][3] is defined as:[4] , where I is the inte … Wikipedia
Absorbance — L absorbance mesure la capacité d un milieu à absorber la lumière qui le traverse. On l appelle également densité optique ou extinction. Il s agit d une grandeur sans unité donnée par la relation : L absorbance est définie par le logarithme… … Wikipédia en Français
absorbance — absorbcijos geba statusas T sritis chemija apibrėžtis Pusiausvirasis absorbato ir jo prisotinto absorbento kiekių santykis. atitikmenys: angl. absorbance; absorption ability; absorption power; absorptivity rus. абсорбционная способность;… … Chemijos terminų aiškinamasis žodynas
absorbance — optinis tankis statusas T sritis chemija apibrėžtis Į sistemą kritusios ir pro ją praėjusios šviesos intensyvumų santykio dešimtainis logaritmas. atitikmenys: angl. absorbance; absorbency; optical density rus. оптическая плотность … Chemijos terminų aiškinamasis žodynas
absorbance unit — (AU) a logarithmic unit used to measure optical density, the absorbance of light transmitted through a partially absorbing substance. If T is the percentage of light transmitted, then the absorbance is defined to be log10 T absorbance units.… … Dictionary of units of measurement
absorbance — noun Date: 1947 the ability of a layer of a substance to absorb radiation expressed mathematically as the negative common logarithm of transmittance … New Collegiate Dictionary
absorbance — /ab sawr beuhns, zawr /, n. Physics. the capacity of a substance to absorb radiation, expressed as the common logarithm of the reciprocal of the transmittance of the substance. Also, absorbancy. [1945 50; ABSORB(ENT) + ANCE] * * * … Universalium
absorbance — In spectrophotometry, log of the ratio of the radiant power of the incident radiation to the radiant power of the transmitted radiation. SYN: absorbancy, absorbency, extinction (2), o … Medical dictionary
absorbance — The measure of concentration of material present; the negative log (base10) of transmittance [ log 1/T] of product of extinction coefficient, pathlength, and concentration, written as A = Ebc … Forensic science glossary
