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.
Checker Disc
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
HI733 Checker HC ® - Ammonia, HR
HI723 Checker HC ® - Chromium VI, HR
Reagents for HI 771 Checker HC ®, 25 Tests
HI3811 CTK Alkalinity
Multiparameter pH/ORP/EC/Pressure/Temperature Waterproof Meter
HI98121 COMBO pH/ORP/°C-Tester, waterproof
HI7040L DO Solution, 500 ml
HI3833 CTK Phosphate
HI4007-02 ISE 100 mg/L (ppm) Chloride Std , 500 ml Bottle
HI93501N FOODCARE Thermistor-Thermometer
HI70442L - 1500 mg/L (ppm) TDS @25°C - 500ml
BL983327-1 EC Mini Controller upto 10.00 mS/cm, 230V
HI1230B - Combination pH Electrode (General Purpose)
เครื่องวัดค่าเหล็ก รุ่น HI721
HI736 Checker HC ® - Phosphorous, ULR
HI7074L - RfE - Anorganische Substanzen - 500ml
HI98120 ORP/°C-Tester, waterproof
HI200M 1L Magnetic stirrer with stainless steel cover plate, 230V
HI38054 CTK Ozone