Brand instruments
Brand Instrument
NPW-160 Total Phosphorus / Total Nitrogen / COD Analyzer
Product description
Technical indicators
- working principle:
Total phosphorus (according to international GB11893-89): Add potassium persulfate as oxidant to the sample, digest the water sample to be tested at 120 ℃ for 30min, convert the phosphide into phosphate ion, and use the molybdenum blue method to absorb water to detect the water quality The total phosphorus content (measurement wavelength: 700nm)
Total nitrogen and potassium persulfate are used as oxidants (according to international GB11893-89): potassium persulfate is used as oxidizer and digested at 120 ° C for 30 minutes to convert the nitrogen-containing compounds into nitrate ions and adjust the pH of the sample solution to 2- 3; The content of total nitrogen in water quality is detected by ultraviolet absorption spectrophotometry (measurement wavelength: 220nm, 275nm turbidity correction: A = A220-A275 × 2)
COD (UV): dual-wavelength absorbance photometry (UV 254nm, visible light 546nm)
-Application industry:
The NPW-160 total phosphorus / total nitrogen analyzer is mainly used for automatic monitoring of total phosphorus, total nitrogen and COD in surface water, tap water, municipal sewage or other special occasions.
-Instrument features:
● Independently designed heating decomposition device
● The system can realize wireless transmission
● Built-in CF card, data can be stored for a long time
● Low operating cost and less secondary pollution
● Integrated design simplifies pipeline connection
● Advanced multi-wavelength detector can measure three indicators: total phosphorus, total nitrogen, COD (UV)
- Product advantages:
● Built-in multi-wavelength detector, one measurement can get two parameters at the same time, including total nitrogen and total phosphorus;
● According to JIS standard (heating at 120 oC for 30 min), the same measurement method is adopted; it has good accuracy and stability;
● Low operating cost, reduce reagent consumption and waste liquid discharge;
● Built-in multiple functions, data storage card (can save one year of measurement data), reagent quantitative sampling system;
● Can be equipped with wireless transmission function.
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Mainly engaged in the distribution of environmental monitoring instruments and meters, as well as the integration and operation and maintenance of environmental monitoring systems; Research and development, production, and sales of environmental monitoring instruments;
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