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US 12,584,896 B2Granted
Process for quantification of metal amino acid chelates in solutions and solids
AssigneePremex, Inc.
InventorPaula Leon Monsalve
Life of this patent
Estimating the term…
Abstract
A process for quantifying the amount of unbound metal and bound metal in solution is provided. A process for quantifying the amount of bound metal amino acid chelate and free ligand in a solid (e.g., dry mixture such as an animal feed) is also provided.
Claims5
A process for quantifying the amount of unbound metal and bound metal in solution comprising the step of:
- (a) reacting a metal compound with excess phytic acid in an aqueous solution at an initial pH of about 3.0 and at a molar ratio of phytic acid to metal compound of at least 6:1;
- (b) adjusting the pH of the aqueous solution to about 5.0 to about 7.0;
- (c) analyzing via high performance liquid chromatography an aliquot of the solution from step (b) to determine the amount of free ligand and amount of bound metal;
- and
- (d) analyzing total metal content to determine the total amount of metal present in solution and the amount of any insoluble metal precipitate produced after step (b),
- wherein prior to step (b), the aqueous solution has an initial pH of about 2.0, and
- wherein the metal is selected from the group consisting of Cu, Cr, Zn, Co, Mn, Fe, and Ca.
4 more elements
Dependencies are inferred from the claim text.