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
HI701 Checker HC ® - Free Chlorine
HI7662 Temperature Probe
HI713 Checker HC ® - Phosphate, LR
PCA 310 Online Chlorine Analyzer & Controller
HI727 Checker HC ® - Color of Water
Checker® Plus pH Tester
เครื่องวัดปริมาณโบรมีน ในตัวอย่างน้ำ รุ่น HI716
HI98130 COMBO Tester for pH/EC/TDS/C° up to 20 mS, waterproof
HI6091 - 9.177 pH@25°C - MQ - 500ml
HI723 Checker HC ® - Chromium VI, HR
HI38054 CTK Ozone