Barbiturique Flashcards

1
Q

principe : Bourdon Younger

A

l’extraction en milieu acide par le dichlorométhane, un passage en phase aqueuse alcaline par NaOH et une photométrie différentielle avec lecture à 260 nm

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2
Q

dichloromethane

A

solvant d’extraction

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3
Q

HCl

A

acidifier le milieu

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4
Q

sulfate de sodium anhyde

A

éliminer les gouttelettes d’eau

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5
Q

tampon borate

A

permet de fixer le ph a un ph=10

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6
Q

NaOH

A

sert a alcaliniser le milieu et augmenter le ph a ph=13

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