Online total phosphorus analyzer for water quality

Online total phosphorus analyzer for water quality:

This product mainly uses colorimetric method to analyze ammonia nitrogen and total phosphorus in water, and the input and operation data browsing are all operated through the touch screen.

Measurement object: Total phosphorus in water

Method description:

In natural water and wastewater, phosphorus almost exists in various forms of phosphates, which are divided into orthophosphate and condensed phosphate(pyrophosphate, pyrophosphate, and polyphosphate) and organic bound phosphates (such as phospholipids) They exist in solutions, humic particles, or aquatic organisms. Only orthophosphate can be measured by colorimetric methodTherefore, other forms of phosphorus need to be hydrolyzed or oxidized in advance to be converted into orthophosphate.

In view of this, persulfate and sulfuric acid were first added as oxidation reagents to the sample, and then heated to 90 ° C for 15 minutes under ultraviolet irradiation for digestion. In order to achieve better digestion, air was continuously introduced into the digestion chamber

After digestion, the sample was detected using the molybdenum blue method, and interference was eliminated after digestion.