TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

ABSORBANCY [2 records]

Record 1 2010-10-15

English

Subject field(s)
  • Analytical Chemistry
  • Chemistry
DEF

The common logarithm of the reciprocal of the transmittance of a pure solvent. Also known as absorbancy.

DEF

The ability of a layer of a substance to absorb radiation expressed mathematically as the negative common logarithm of transmittance.

French

Domaine(s)
  • Chimie analytique
  • Chimie
DEF

Grandeur caractérisant le pouvoir absorbant d'une substance pour les radiations monochromatiques.

DEF

Logarithme décimal de l'inverse de la transmittance.

CONT

L'absorbance est donc la différence entre la densité optique de la solution absorbante du composé dissous à doser et la densité optique de la solution de référence mesurées dans les mêmes conditions.

OBS

«Absorbance» a été tiré de la norme AFNOR NF-T-01-030 intitulée «Spectrophotométrie d'absorption moléculaire - Vocabulaire et généralités».

Spanish

Campo(s) temático(s)
  • Química analítica
  • Química
Save record 1

Record 2 2010-10-15

English

Subject field(s)
  • Analytical Chemistry
  • Phraseology
  • Optics
DEF

Logarithm of the ratio of incident to transmitted radiant power through a sample (excluding the effects on cell walls).

OBS

The terms absorbancy, extinction and optical density are not recommended synonyms.

PHR

Absorbance unit.

PHR

Baseline absorbance.

PHR

Linear, low, UV absorbance.

French

Domaine(s)
  • Chimie analytique
  • Phraséologie
  • Optique
PHR

Absorbance à deux longueurs d'onde.

Key term(s)
  • densité optique
  • extinction

Spanish

Campo(s) temático(s)
  • Química analítica
  • Fraseología
  • Óptica
Save record 2

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