U42-506

Fertilizers micro-nutrients analysis. Determination of the chelated fraction method using treatment by ion exchanger resin.

Le présent document décrit une méthode de détermination de la fraction chélatée d'un ou plusieurs oligo-éléments contenus dans un engrais. Une résine échangeuse d'ions permet de séparer, en solution aqueuse diluée, les formes chélatées d'un oligo-élément des formes non chélatées et de calculer ainsi la fraction chélatée présente dans un engrais.

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