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LCK502 Ammonium Cuvette Test, 100-1,800 mg/L NH₄-N

LCK502 Hach

LCK Reagent Set measures ammonium in wastewater plants and industrial wastewater.

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LCK502 Cuvette test measures 100-1800 mg/L NH₄-N or 130-2320 mg/L NH₄ in wastewater. The reagent set uses indophenol blue method (ISO 7150-1, DIN 38406 E5-1, UNI 11669:2017). 13mm Cuvette test can be used for 25 tests. LCK502 product may be evaluated on DR3900, DR6000 and DR1900. 20 µL micropipette (2946003) is required for the wastewater sample analysis.

Procedure for NH₄-N measurement

Remove foil, unscrew DosiCap Zip and add 20 µL wastewater sample. After that screw DosiCap Zip, shake the cuvette content and test results using one of the aforementioned spectrophotometers.

Summary of method

Ammonium ions enter into reaction at pH 12.6 with hypochlorite ions and salicylate ions in the presence of sodium nitroprusside that is the catalyst of the reaction to form indophenol blue.

Sample preparation

It is required to work with the recommended temperature and analyze wastewater samples as soon as possible for correct results. It is not recommended to conservate the wastewater sample. It is required to store the sample in the glass or polyethylene vessel. The product storage conditions are between 2 °C and 8 °C in refrigerated condition.

Brand Hach
Parameter Ammonium
Measuring range 100-1,800 mg/L NH₄-N / 130-2320 mg/L NH4
Instrument DR3900, DR6000 and DR1900
Method Indophenol Blue method
Standard method ISO 7150-1, DIN 38406 E5-1, UNI 11669:2017
Digestion required No
Number of tests 25 tests
Storage conditions 2 °C - 8 °C (refrigerated)

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