TERMIUM Plus®

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

TRUE PARTITION COEFFICIENT [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-04-26

English

Subject field(s)
  • Analytical Chemistry
DEF

The ratio of the total analytical concentration of a solute in the extract (regardless of its chemical form) to its total analytical concentration in the other phase.

OBS

In the past there has been much confusion between the "distribution ratio" as defined above, the value of which varies with experimental conditions, ... and the "true partition coefficient" which is by definition invariable or the "partition coefficient" or "distribution constant" which apply to a particular chemical species under specified conditions. For this reason the terms "distribution constant," "partition constant," "partition coefficient," "partition ratio" and "extraction constant" should not be used in this context.

OBS

distribution coefficient: The term is not recommended [by the International Union of Pure and Applied Chemistry (IUPAC]) as a synonym for the latter [distribution ratio].

OBS

distribution ratio (in liquid-liquid distribution).

French

Domaine(s)
  • Chimie analytique
DEF

Rapport de la concentration analytique totale d'un soluté dans un extrait (sans tenir compte de sa forme chimique) à sa concentration analytique totale dans l'autre phase.

OBS

Dans le passé, il y a eu beaucoup de confusion entre l'expression «rapport de distribution» tel que défini [ci-dessus], dont la valeur varie avec les conditions expérimentales [...] et le «coefficient de partage vrai» qui, par définition, est invariable ou avec le «coefficient de partage» ou la «constante de distribution» qui s'appliquent à une espèce chimique en particulier, dans des conditions données. Pour cette raison, les expressions «constante de distribution», «constante de partage», «coefficient de partage», «rapport de partage» et «constante d'extraction» ne devraient pas être utilisées dans ce contexte.

OBS

coefficient de distribution : Expression non recommandée par [l'Union internationale de chimie pure et appliquée] comme synonyme de «rapport de distribution».

OBS

rapport de distribution : ne pas confondre avec le terme «rapport de partage».

OBS

rapport de distribution (en distribution liquide-liquide)

Spanish

Save record 1

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2024
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: