High quality reagents that are pre-measured, allowing for users to achieve fast and accurate colorimetric measurements. These reagents follow the Nessler Method in which the reaction between ammonia and reagents causes a yellow tint in the sample. By simply adding 4 drops from each bottle of reagent set to the sample, the reaction between ammonia and reagents causes a yellow tint in the sample will take place. The intensity of colour is determined by a compatible photometer and the concentration will be displayed. The results will be displayed in ppm (mg/L) of either ammonia-nitrogen (NH₃-N), ammonia or ammonium based on meter and setting being used. These reagents are designed to be used with samples that have an expected range of 0.00 to 3.00ppm ammonia-nitrogen.

• Reagents for the colorimetric determination of ammonia in freshwater
• Enough reagents for 100 tests and are for use with Hanna Instruments compatible benchtop and portable meters. T
• Clearly marked with the lot number and expiry date for traceability on each bottle
• Pre-made reagents for ease of use
• Prepared with high purity chemicals