Ammonia (Sea Water), Nessler Colorimetric Method, Reagent Kit
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Order Me In, once ordered this item will likely dispatch before the 19th of September 2025, call 1300 737 871 (NZ 0800 737 871) to confirm.
The HI3826-025 are replacement reagents for the colorimetric determination of ammonia (as NH3-N) with the HI3826 Ammonia Test Kit for Seawater.
- - There are enough reagents for approximately 25 tests to be used with Hanna’s test kit.
- - Pre-made reagents for ease of use.
- - Prepared with high purity chemicals.
- - Marked with expiration date and lot number for traceability.
Regular price
$49.39 AUD
+ GST
$54.33 AUD Inc. GST
$54.33 AUD Inc. GST



The HI3826-025 are high quality reagents that are pre-measured, allowing for users to achieve fast and accurate ammonia measurements with the chemical test kit. These reagents follow the Nessler method to determine seawater ammonia concentration as ammonia-nitrogen (NH3-N).
For determination of ammonia, the Nessler reagent is added to the sample under alkaline conditions to react with ammonia. The reaction between ammonia and the mercury-containing reagent causes a yellow colored complex to form; the greater the concentration, the deeper the color. A color comparator cube is included for an accurate, side-by-side, visual analysis to determine ammonia concentration. These reagents are designed to be used with samples that have an expected ammonia range of 0.0 to 2.5 mg/L (ppm) NH3-N.
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