MaxSignal® Ammonia Assay Kit


Catalog# Product Name Quantity US List Price
1304-01 MaxSignal® Ammonia Assay Kit 48 samples Inquire

These kits are available for purchase by email, fax or phone only. Please email your order to sales@biooscientific.com, fax it to 1-512-707-8122 or call 512-707-8993.


  • High sensitivity and low detection limit (0.2 ppm)
  • A rapid (30 minute), robust enzyme-based assay
  • High reproducibility
  • Flexible format

The MaxSignal® Ammonia Assay Kit uses a coupled enzymatic reaction scheme to detect ammonia in food samples: ammonia in the sample is used as a substrate by the enzyme glutamate dehydrogenase to make glutamate. In the process, NADH is stoichiometrically converted to NAD+. This conversion, measured at 340 nm, is proportional to the level of ammonia in the sample.

The absorbance of each sample at 340 nm is measured using a spectrophotometer. The concentration of ammonia in each sample is then directly determined from the change in NADH absorbance at 340 nm within 25 minutes. The assay offers both a cuvette-based format and a microtiter plate format for high-throughput sample analysis.

This kit is manufactured to the international quality standard ISO 9001:2008.


Kit Specs

The MaxSignal Ammonia Assay Kit has the capacity for 48 determinations or 24 determinations in duplicate. Store the kit at 4°C. The shelf life of the kit is 6 months, after receipt, when the kit is properly stored.

MaxSignal® Ammonia Assay Linear Range

axSignal Ammonia Assay Linear Range