L-Arginine/Urea/Ammonia, UV method (AK00171)

129,00

50 tests

129,00

Description:

Enzymatic method for the determination of L-arginine, urea and ammonia (Yeast Available Nitrogen -YAN). Based on the spectrophotometric measurement of NADPH consumed through the reactions, after addition of arginase (ARG), urease (URE) and glutamate dehydrogenase (GlDH).

Features:

– Nitrogen determination without formaldehyde

– Rapid reactions

– Stable enzyme suspensions

Applications:

Grape juice, wine and wine must, biological cultures and biological samples.

See applications for Wine and Fermentation industries.

Specifications:

– Quantity: 50 tests of each

– Reaction volume: 2.66 mL

– Range: L-Arginine – 50-400 mg/L; Urea – 20-140 mg /L; Ammonia – 10-70 mg /L

– Detection limit: L-Arginine – 0.37 mg/L ; Urea – 0.13 mg/L; Ammonia – 0.07 mg/L

Components:

– Solution 1 (assay buffer)

– Tablets 2 (cofactor NADPH)

– Suspension 3 (enzyme GlDH)

– Suspension 4. (enzume URE)

– Suspension 5 (enzyme ARG)

– Solution 6 (Ammonia standard solution- 0.04 mg/mL)

– Powder 7 (L-Arginine standard)

MSDS EN
MSDS PT
Product Brochure EN
Product Brochure PT
Alternative Procedures EN

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