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.
Titration
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
All Product
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).
Checker Disc
Reagent kit for HI 38061 (100 tests)
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
HI766E1 K-Type, General Purpose w Cable
HI7609829-2 - Dissolved Oxygen Sensor for HI9829 Multiparameter
HI98121 COMBO pH/ORP/°C-Tester, waterproof
CTK Härte Gesamt
PCA 310 Online Chlorine Analyzer & Controller
HI93754B-25 Medium Range COD Reagent (0 to 1500 mg/L)
HI70038C - 6.44 g/l (ppt) TDS@25°C Zert. - 25x20ml
HI96802 Fructose - Digital Refractometer Portable
HI715 Checker HC ® - Ammonia, MR
HI991301 Multiparameter pH/EC/TDS/°C - EC to 20.00 mS
HI93501N FOODCARE Thermistor-Thermometer
HI38000 CTK Sulfate
HI4016-00 ISA for Sodium ISE, 500 ml Bottle
HI5421 Research Grade Dissolved Oxygen and BOD Meter
HI95747-01 Copper LR - Reagents - 100 Tests
HI38039-100 - Reagents for CTK Iron LR
CTK Härte Gesamt
HI5521 Research Grade pH/ORP and EC/TDS/Salinity/Resistivity Meter with CAL Check™
HI3874 CTK Nitrate
HI3811 CTK Alkalinity
HI991300 Multiparameter pH/EC/TDS/°C - EC to 3999 µS
HI731318 - Cuvette Cleaning Cloth (4 pcs)
HI1297D - pH/ORP-Electrode
HI93750-01 Potassium - Reagents - 100 Tests
HI96740-11 CalCheck ™ Nickel LR Calibration-Set
Calibration Standard HI 721 Checker HC ®
HI3844 CTK Hydrogen Peroxide
Calibration Standard HI 711 Checker HC ®
HI10530 Digital pH-Electrode, Conical Tip, Glass, Refillable (edge)
HI3811-100 - Reagents for CTK Alkalinity
HI38061 CTK Phosphate