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Hanna Instruments UK HI-93700-03 Reagents: 300 ammonia test HI-96700

In Stock 6 Items available

HI-93700-03

The HI-93700-03 are reagents for the colorimetric determination of ammonia in freshwater. 

300 tests

£184.70 (exc.VAT)
£221.64 (tax incl.)
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Full Description Specification

There are enough reagents for 300 tests and are for use with Hanna Instruments compatible benchtop and portable meters. These high quality liquid reagents are 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

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.

The HI-93700-03 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 4 drops from each bottle of HI-93700-03 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 3.00 ppm ammonia-nitrogen.

Tip for an accurate measurement

It is important that the sample does not contain any debris.

When the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion.

Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.

Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost.

After the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.

Safety Data Sheets

Access safety data sheets online here. When using any form of chemical, it is important you download the relevant safety datasheet and make yourself aware of any precautions you should take when handling the chemical. You can access our library of safety datasheets and download a copy by following the link below.

Please note that the '-' in HI- products should be removed from all searches to find the correct information.

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Read More

Packagedropper bottles “A” and “B”
Quantity300 tests
Methodadaptation of the ASTM Manual of Water and Environmental Technology D1426-93, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample.