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
HI711 Checker HC ® - Total Chlorine
HI7075 Electrode filling solution 1.7M KNO3 + 0.7M KCl, 4 x 30 ml
HI705 Checker HC ® - Silica, LR
เครื่องวัดปริมาณโบรมีน ในตัวอย่างน้ำ รุ่น HI716
HI1005 - pH Electrode, Flow-thru Monitoring for PCA
HI9124 pH / °C Meter, Waterproof Portable
BL983320-1 EC Mini Controller 0 to 199.9 µS/cm, 230V
สารละลายมาตรฐานความขุ่น 20 NTU
HI736 Checker HC ® - Phosphorous, ULR
HI7022L - 470mV ORP Test Solution - 500ml
HI708 Checker HC ® - Nitrite, HR
HI7021L - 240mV ORP Test Solution - 500ml
HI991300 Multiparameter pH/EC/TDS/°C - EC to 3999 µS
HI38054 CTK Ozone