(1) Working principle: The DEK-1003 total phosphorus online water quality analyzer adopts the national standard GB11893-89 for the determination of total phosphorus in water quality (ammonium molybdate spectrophotometric method). Under neutral conditions, dissolve the sample with potassium persulfate (or nitric acid -) to oxidize all the phosphorus content to orthophosphate. In an acidic medium, orthophosphate reacts with ammonium molybdate to form phosphomolybdic acid in the presence of antimony salt, which is immediately reduced by ascorbic acid to form a blue complex.

(2) The DEK-1003 total phosphorus online water quality analyzer has the following basic functions:

- Can set, proofread, and display time, including year, month, day, hour, and minute;

- It has an alarm function for system abnormalities such as equipment power failure, instrument leakage, and inability to import samples into the reactor, and displays the fault content. At the same time, stop running until the system is restarted;

After each measurement, the pre-treatment device, instrument pipelines, valves, and other components are automatically cleaned;

- Automatic protection for power and water outages, as well as automatic recovery for incoming and outgoing power;

- Regular cleaning and sampling functions;

Touchscreen viewing is more intuitive and easier to operate