TERMIUM Plus®

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ANALYSE GRADIENT [3 records]

Record 1 2001-09-27

English

Subject field(s)
  • Statistical Methods
  • Ecology (General)
DEF

Any method attempting to relate the species composition to (measured or hypothetical) environmental gradients.

French

Domaine(s)
  • Méthodes statistiques
  • Écologie (Généralités)
DEF

Échantillon d'observations ou de mesures réalisées à des intervalles réguliers le long d'un gradient d'un facteur ou d'un descripteur écologique, afin de saisir les relations entre les variations de ce facteur ou descripteur et la présence de certaines caractéristiques des organismes.

DEF

Méthode statistique permettant de mettre en évidence un gradient physique au sein d'un milieu étudié.

Spanish

Save record 1

Record 2 1996-02-15

English

Subject field(s)
  • Analytical Chemistry
CONT

Often, all substances are not eluted from the column with a single solvent. After elution of part of the solutes, a different solvent or solvent mixture is added that shows a greater eluting power for the remaining solutes. In solvent gradient analysis, mixed solvents are used, but their volume ratios are varied continuously throughout the elution, usually in a linear fashion.

French

Domaine(s)
  • Chimie analytique

Spanish

Save record 2

Record 3 1996-02-15

English

Subject field(s)
  • Analytical Chemistry
CONT

Often, all substances are not eluted from the column with a single solvent. After elution of part of the solutes, a different solvent or solvent mixture is added that shows a greater eluting power for the remaining solutes ... a concentrated salt or other reagent in the eluting solvent may be continuously diluted, as in salt gradient analysis. The salt may act as a salting-out agent (precipitating) for the solutes, and the salting-out ability decreases continuously.

French

Domaine(s)
  • Chimie analytique

Spanish

Save record 3

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