Nitrate is reduced to nitrite in the presence of cadmium. The nitrite thus produced reacts with the reagent to yield an orange compound. The amount of color developed is proportional to the concentration of nitrate present in the aqueous sample.
Colorimetric
Chemical test kit for the determination of nitrate in water in the range 0-50mg / l (ppm). Package size: 100 Tests
All Product
The HANNA test kit for ozone determines the ozone concentration in water via checker disc. The reaction between ozone and the reagent causes a pink tint in the sample which is proportional to the ozone concentration.
Chemical test kits
Chemical test kit for the determination of pH in the range 4-10pH. Package size: 300 tests
Chemical test kit for the determination of phosphate in the range 0:00 to 1:00 mg / / 0.0-5.0 mg / L / 0-50 mg / L (ppm).
Test kit for the chemical determination of silicate in the range 0-1 mg / l (ppm). 100 Tests
Test kit for the chemical determination of silicate in the range 0-40mg / l / 0 800 mg / l (ppm). 100 Tests
HI1131B - Combination pH Electrode
HI93102 Water Analysis Meter (with Turbidity up to 50NTU)
Calibration Standard HI 711 Checker HC ®
HI70007C - 7.01 pH@25°C - SQ Zert. - 25x20ml
Reagents for HI 716 Checker HC ®, 25 Tests
Chlorine Removal
HI4013-06 Nitrate Interferent Suppressant ISA, 500 ml Bottle
HI93721-01 Iron HR - Reagents -100 Tests
HI981402 pH-Indicator with LED-Alarm & Electrode PRONTO
เครื่องวัดปริมาณคลอรีนรวม รุ่น HI711
HI3811 CTK Alkalinity
Calibration Standard HI 771 Checker HC ®
CTK Härte Gesamt
HI38039-100 - Reagents for CTK Iron LR
HI93751-01 Sulfate - Reagents - 100 Tests
HI93735-02 Hardness Total (400 to 750 mg/L) - Reagents -100 Tests
HI38054 CTK Ozone