Analysis Note

function control: entsprichtAssay - standard 1: 6.5 - 8.5 mg/l - standard 2: 22.5 - 27.5 mg/l - standard 3: 45.0 - 55.0 mg/l

General description

The Reflectoquant™ Malic Acid Test can be used for the determination of the decrease in malic acid concentration during the wine-making process. Malic acid (malate) is oxidized to oxalacetate by NAD under the catalytic effect of malate dehydrogenase. In the presence of diaphorase the NADH formed in the process reduces a tetrazolium salt to a red formazan that is determined reflectometrically on the RQflex™.

Method: reflectometric with test strips 5.0 - 60.0 mg/l Reflectoquant^®

Legal Information

RQFLEX is a registered trademark of Merck KGaA, Darmstadt, Germany

REFLECTOQUANT is a registered trademark of Merck KGaA, Darmstadt, Germany

Linkage

Replaces: 16128; 16128-1