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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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50 TESTS

$296.00

$296.00


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About This Item

UNSPSC Code:
41116116
NACRES:
NA.24

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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

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Show Differences

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This Item
1.161271.169811.16975
detection method

reflectometric

detection method

reflectometric

detection method

reflectometric

detection method

reflectometric

specific analyte(s)

malic acid

specific analyte(s)

lactic acid

specific analyte(s)

ascorbic acid

specific analyte(s)

peracetic acid

compatibility

RQflex® 20, for use with REFLECTOQUANT®

compatibility

RQflex® 20, for use with REFLECTOQUANT®

compatibility

RQflex® 20, for use with REFLECTOQUANT®

compatibility

RQflex® 20, for use with REFLECTOQUANT®

reaction suitability

reaction type: enzymatic reaction

reaction suitability

reaction type: enzymatic reaction

reaction suitability

-

reaction suitability

reaction type: Redox Reactions

description

quantitative

description

quantitative

description

quantitative

description

quantitative

measuring range

5.0-60.0 mg/L (malic acid)

measuring range

3.0-60.0 mg/L (lactic acid)

measuring range

25-450 mg/L (ascorbic acid)

measuring range

1.0-22.5 mg/L (peracetic acid)

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 Code

11 - Combustible Solids

WGK

WGK 2


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