L-精氨酸/尿素/氨检测试剂盒[快速]150 assays

For the specific and rapid assay of L-arginine, urea and ammonia in grape juice/must and wine. Content:150 assays - 50 of each component

UV-method for the determination of L-Arginine, Urea and Ammonia 
in grape juice, must and wine

Principle:
                            (microbial glutamate dehydrogenase)
(1) 2-Oxoglutarate + NADPH + NH4+ → L-glutamic acid + NADP+ + 
                                                                                           H2O
                     (urease)
(2) Urea + H2O → 2 NH3 + CO2

                              (arginase)
(3) L-Arginine + H2O → urea + ornithine

Kit size:                             50 assays
Method:                              Spectrophotometric at 340 nm
Reaction time:                    ~ 20 min [ammonia (2 min), urea (6 min),
                                          L-arginine (7 min)] Detection limit:                  0.07 mg/L (ammonia)
                                           0.13 mg/L (urea)
                                           0.37 mg/L (L-arginine)
Application examples:
Grape juice, wine must, wine and other materials (e.g. biological
cultures, samples, etc.)
Method recognition:          Improved method

Advantages

Improved assay format
 

Very rapid reactions due to use of uninhibited glutamate dehydrogenase
 

All enzymes supplied as stabilised suspensions
 

Very competitive price (cost per test)
 

All reagents stable for > 2 years after preparation
 

Mega-Calc? software tool is available from our website for hassle-free raw data processing
 

Standard included
 

Extended cofactors stability