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POLYAMINE [8 records]

Record 1 2011-01-13

English

Subject field(s)
  • Biological Sciences
DEF

Long chain aliphatic compound that contains multiple amino and/or imino groups. Polyamines are widely distributed in nature and include compounds such as spermine, spermidine, cadaverine, and putrescine.

CONT

Inorganic materials are impervious to biological attack by enzymes produced by contaminating bacterial systems, compared with some of the more common carriers such as celluloses, polydextrans and polyamines.

OBS

Polyamines affect ribosomes, DNA, RNA, and other biological components, and their action is frequently attributed to an electrostatic interaction between the polyamine cation and a negatively charged molecule.

French

Domaine(s)
  • Sciences biologiques
DEF

Substance organique possédant plusieurs [...] fonctions amines.

CONT

Parmi les polyamines, on trouve la putrescine, la spermidine, et la spermine. Les polyamines et leurs dérivés N-acétylés jouent un rôle important dans la réplication du DNA, la régénération cellulaire, etc.

Spanish

Save record 1

Record 2 1981-01-26

English

Subject field(s)
  • Biological Sciences
CONT

Weakly basic anion exchangers, generally of the aromatic polyamine type, retaining strong acids only, provided that the latter are free in the solution run through the exchanger.

French

Domaine(s)
  • Sciences biologiques
CONT

Les échangeurs d'anions faiblement basiques qui sont généralement du type polyamine aromatique et retiennent exclusivement les acides forts à condition que ceux-ci soient libres dans la solution mise en contact avec l'échangeur.

Spanish

Save record 2

Record 3 1981-01-26

English

Subject field(s)
  • Industrial Tools and Equipment
  • Chemistry
CONT

Weakly basic anion exchangers, generally of the aromatic polyamine type, retaining strong acids only, provided that the latter are free in the solution run through the exchanger.

French

Domaine(s)
  • Outillage industriel
  • Chimie
CONT

Les échangeurs d'anions faiblement basiques qui sont généralement du type poly-amine aromatique et retiennent exclusivement les acides forts à condition que ceux-ci soient libres dans la solution mise en contact avec l'échangeur.

Spanish

Save record 3

Record 4 1981-01-26

English

Subject field(s)
  • General Vocabulary
CONT

Weakly basic anion exchangers, generally of the aromatic polyamine type, retaining strong acids only, provided that the latter are free in the solution run through the exchanger.

French

Domaine(s)
  • Vocabulaire général
CONT

Les échangeurs d'anions faiblement basiques qui sont généralement du type poly-amine aromatique et retiennent exclusivement les acides forts à condition que ceux-ci soient libres dans la solution mise en contact avec l'échangeur.

Spanish

Save record 4

Record 5 1981-01-26

English

Subject field(s)
  • Biological Sciences
CONT

Medium-basicity anion exchangers, generally of the aliphatic polyamine type : these contain a quantity(proportion variable... of strong base functions enabling them to fix, in addition to free strong acids, a variable proportion of weak acids...

French

Domaine(s)
  • Sciences biologiques
CONT

Les échangeurs d'anions moyennement basiques qui sont généralement du type polyamine aliphatique, contiennent en proportion variable [...] une certaine quantité de fonctions de forte basicité les rendant aptes à fixer, en plus des acides forts libres, une proportion variable d'acides faibles [...]

Spanish

Save record 5

Record 6 1981-01-26

English

Subject field(s)
  • Analytical Chemistry
  • Environmental Studies and Analyses
CONT

Medium-basicity anion exchangers, generally of the aliphatic polyamine type : these contain a quantity(proportion variable... of strong base functions enabling them to fix, in addition to free strong acids, a variable proportion of weak acids...

French

Domaine(s)
  • Chimie analytique
  • Études et analyses environnementales
CONT

Les échangeurs d'anions moyennement basiques qui sont généralement du type polyamine aliphatique, contiennent en proportion variable [...] une certaine quantité de fonctions de forte basicité les rendant aptes à fixer, en plus des acides forts libres, une proportion variable d'acides faibles [...]

Spanish

Save record 6

Record 7 1981-01-26

English

Subject field(s)
  • Chemistry
CONT

Medium-basicity anion exchangers, generally of the aliphatic polyamine type : these contain a quantity(proportion variable... of strong base functions enabling them to fix, in addition to free strong acids, a variable proportion of weak acids...

French

Domaine(s)
  • Chimie
CONT

Les échangeurs d'anions moyennement basiques qui sont généralement du type poly-amine aliphatique, contiennent en proportion variable [...] une certaine quantité de fonctions de forte basicité les rendant aptes à fixer, en plus des acides forts libres, une proportion variable d'acides faibles [...]

Spanish

Save record 7

Record 8 1981-01-26

English

Subject field(s)
  • Biological Sciences
CONT

... quaternary aliphatic polyamines, ...

French

Domaine(s)
  • Sciences biologiques
CONT

[...] les poly-amines aliphatiques quaternisés, [...]

Spanish

Save record 8

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