TBX (TRYPTONE BILE X-GLUCURONIDE) AGAR (C005B-094444)

General description

Method: reflectometric with test strips 3.0 - 60.0 mg/l Reflectoquant^®

The Reflectoquant Lactic acid test measures total lactic acid (sum of D- and L-lactic acid in beverages, e.g. wine, beer and fruit/vegetable juice after dilution. Furthermore the test can be used for the determination of lactic acid in food after pretreatment. Lactic acid (lactate) is oxidized by nicotinamide adenine dinucleotide (NAD) under the catalytic effect of lactate dehydrogenase to a pyruvate. In the presence of diaphorase, the NADH formed in the process reduces a tetrazolium salt to a blue formazan that is determined reflectometrically on the RQflex.

Analysis Note

function control: entspricht
Assay
- standard 1:
4.5 - 5.5 mg/l
- standard 2: 22.5 - 27.5 mg/l
- standard 3: 45.0 - 55.0 mg/l

Legal Information

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

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

description: quantitative. Quality Level: 100. specific analyte(s): lactic acid. reaction suitability: reaction type: enzymatic reaction. measuring range: 3.0-60.0 . mg/L (lactic acid). web metadata keyword.default: microbialanalysis
microbialanalysis. compatibility: RQflex^®. 10 Plus, RQflex^®. 10, RQflex^®. 20, for use with REFLECTOQUANT^®. . detection method: reflectometric. storage temp.: 2-8°C. Storage Class Code: 11 - Combustible Solids. WGK: WGK 2.