
Hanna Instruments AMMONIA HIGH RANGE, NESSLER METHOD, 100 TESTS
The HI-93733-01 are reagents for the colorimetric determination of ammonium (NH4+). There are enough reagents for 100 tests to be used with Hanna’s compatible portable photometer.
These high quality reagents are clearly marked with the lot number and expiry date on each bottle for traceability.
- Pre-made reagents for ease of use
- Prepared with high purity chemicals
Please download the Safety Datasheet(s) which provide more detail on the reagents before use; click on the link in the “safety data sheets” paragraph below.
Reagents for Ammonia high range, 0 to 100 mg/L
The HI-93733-01 are 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 the reagents 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 ammonium (NH4+) but can easily be converted to ammonia-nitrogen (NH3-N) or ammonia (NH3). These reagents are designed to be used with samples that have an expected range of 0.0 to 50.0 ppm ammonium.

Frequently Asked Questions
Clear answers to help you choose the right water testing solution with confidence
Which brands of water testing kits do you supply?
Do you provide kits for both home and professional use?
Yes — whether you’re a pool or spa owner, aquarium keeper, utility company, or a university laboratory, we have the right solution for your needs.
Can I arrange servicing or calibration for my photometer?
Absolutely. We also provide servicing and calibration to keep your photometers accurate and reliable.
How quickly do you dispatch orders?
Orders placed before 2:30 pm (Monday–Friday) are dispatched the same day. We also ship on Saturdays for your convenience.
Which couriers do you use for delivery?
We deliver through UPS, DPD, and Royal Mail. You can also choose to upgrade to next-day delivery at checkout.
What is your return policy?
We accept returns within 14 days of delivery provided the items are unused, in their original packaging, and in resalable condition. Please contact our team before returning any items.
Can I place bulk or business orders?
Yes, we welcome bulk, trade, and institutional orders. For tailored pricing or large quantities, please get in touch with us directly.
How can I get help if I’m unsure which kit to buy?
You can call us at 📞 +44 (0)115888 2726 and our team will guide you in choosing the most suitable kit for your needs.
