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
Product Name
Malic Acid Test, reflectometric, 5.0-60.0 mg/L (malic acid), for use with REFLECTOQUANT®
description
quantitative
Quality Level
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
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
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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