Salifert Nitrate (NO3) Profi Test

The range spans from very low to a very high nitrate concentration (approx. 0.05 – 20 mg/L as Nitrate-Nitrogen or 0.2 – 100 mg/L as nitrate ion).

The kit can perform approx. 60 measurements.

Specifications

Low range: 0.2 – 10 mg/L (ppm) as nitrate.
Medium range: 2 – 100 mg/L (ppm) as nitrate.

Procedure for both ranges:

  1. Fill test vial with 1mL of water.
  2. Add 1 level scoop of NO3-1 powder (compress this powder against the inner side of the powder container).
  3. Add 1 level scoop of NO3-2 powder and swirl gently (do NOT shake) for 30 seconds.
  4. Let it stand for 3 minutes.
  5. Color comparison:

    Medium Range:

    Place the test vial on the white part of the color chart and compare colors looking from the TOP. Use diffuse daylight when comparing colors.

    If the color corresponds to a value lower than 10mg/L nitrate then it might be better to compare colors as shown for the low range (see below).

    Low Range:

    If the medium range color comparison procedure gave a reading lower than 10mg/L then you can use the low range prodecure. This will increase the accuracy.

    The color for the low range procedure has to be compared by looking through the SIDE of the test vial.

    The white part of the color chart has to be held firmly against the opposite side of the test vial. Use diffuse daylight when comparing colors.

    The color is, by looking through the side, amplified by approximately 10 fold. For this reason you have to divide the color chart values by 10. For example 2 will become 0.2 and 50 will become 5.

$24.80

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Description

Nitrate testing

When an aquarium has insufficient regions deprived of oxygen (= anaerobic zones) or denitrification proceeds incompletely then nitrate will build-up.

A too high nitrate concentration can result in unwanted algae-growth and these might irritate corals in their neighborhood.

Nitrate as such also retards coral growth.

The nitrate concentration in a proper functioning reef aquarium should preferably be lower than 1 mg/L. Fish-only aquariums would usually show much higher nitrate concentrations.

Most test kits use a procedure in which a certain part of nitrate is converted chemically into nitrite and is measured as such.

Once again, just as with nitrite testing, amine interference has a major impact on the measured value. If such an interference occurs concentrations much lower than actual will be measured.

Conclusion:

Many nitrate test kits are prone to amine interference. This can give results much lower than actual.

The Salifert nitrate test does not suffer from such an amine interference. The very special ingredients allow a very fast and precise measurement.

The range spans from very low to a very high nitrate concentration (approx. 0.05 – 20 mg/L as Nitrate-Nitrogen or 0.2 – 100 mg/L as nitrate ion).

The kit can perform approx. 60 measurements.

Brand

Salifert

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