CDR CoffeLab analyzer for controlling fermentation processes, for defining the chemical profile of green beans, roasted coffee and the drink.

Determination of potassium in water

Potassium analysis allows, in a simple and fast way, to quantify the concentration of the analyte in the water used in the coffee brewing process.

Method

Test Principle

Potassium ions precipitate with sodium tetraphenylborate. The absorbance determined at 420 nm is proportional to the amount of analyte present in the water sample.

Calibration curve

The calibration curve was constructed using standard potassium solutions. The trend of the curve confirmed an excellent linearity of the system over the whole measuring range.

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Reagent test Kits

Measuring range

AnalysesMeasuring rangeResolutionRepeatability

CDR CoffeeLab® the analysis equipment for the world of coffee from origins to roasting

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CDR CoffeeLab®

  • Complete analysis panel, supplied already configured
  • Up to 16 determinations simultaneously
  • Possibility of carrying out analyses of the same sample
  • Integrated printer
  • Full connections (LAN - USB - Bluetooth barcode/QR code reader)