Description
With calibration fluid for nitrate from Aqualabo, you are guaranteed the best starting point for an accurate calibration!
Nitrate is measured using an ISE electrode, with a pH 3-10 limitation. It should be noted that the electrode also measures chloride, chromide, fluoride, sulfate, chlorate and perchlorate ions, as they are naturally similar in their structure.
When the nitrate electrode is installed, it must be calibrated after a three-point calibration. To do this, three solutions of nitrate calibration fluids must be prepared before you get started.
Two 200mL portions of nitrate with a concentration of 10ppm and one 250mL portion of nitrate with a concentration of 100ppm must be prepared.
These should always be mixed for each use so that they are “fresh”. We also recommend that all mixtures be made by diluting 1000ppm down to 100ppm or 10ppm
One of the 10ppm and 100ppm mixtures should be exactly the same temperature, the last 10ppm should be at least 10 degrees colder.