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Merck

1.16128

Malic Acid Test

reflectometric, 5.0-60.0 mg/L (malic acid), REFLECTOQUANT®, for use with RQflex® 20

Synonym(s):

Malic Acid chemical test strips, Malic Acid test strip for instrument reader

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About This Item

UNSPSC Code:
41116116
NACRES:
NA.24

Key Documents

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Product Name

Malic Acid Test, reflectometric, 5.0-60.0 mg/L (malic acid), for use with REFLECTOQUANT®

description

quantitative

specific analyte(s)

malic acid

reaction suitability

reaction type: enzymatic reaction

measuring range

5.0-60.0 mg/L (malic acid)

application(s)

beverage testing
food testing

compatibility

RQflex® 20, for use with REFLECTOQUANT®

detection method

reflectometric

storage temp.

2-8°C

Quality Level

100

Related Categories

General description

Method: reflectometric with test strips 5.0 - 60.0 mg/l Reflectoquant®
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® 20.

Analysis Note

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

Other Notes

Replaces: 16128; 16128-1

Legal Information

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

Storage Class

11 - Combustible Solids

wgk

WGK 2

Certificates of Analysis (COA)

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Global Trade Item Number

SKUGTIN
1.16128.000104027269000899

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