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US 6,432,661 B1Granted
Method for quantitating organic peracid using catalase
AssigneeThe Clorox Company
InventorsFred A. Heitfeld, Susan A. Anderson
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Abstract
The invention provides an improved procedure for the precise quantitation of organic oxidants in a solution with hydrogen peroxide in which the peroxide is removed by the addition of catalase to scavenge the same. Surprisingly, the catalase does not affect the organic oxidant, and the procedure can accurately quantitate even minute amounts of the organic oxidant. The inventive method is especially effective in quantitating peracid generated enzymatically, although it can be used for chemically generated organic oxidants.
Claims20
A method for quantitating an organic peracid comprising:
- introducing, into a sample solution containing an organic peracid in the presence of a high background of hydrogen peroxide in said solution, an amount of catalase sufficient to decompose said hydrogen peroxide in said solution;
- reacting all of the hydrogen peroxide present in said solution with sufficient amount of said catalase without decomposing said organic peracid present in the solution;
- and
- quantitating said organic peracid in ppm active oxygen (A.O.) by measuring an amount of said organic peracid in an absence of said hydrogen peroxide.
1 more element
Dependencies are inferred from the claim text.