CDR BeerLab® - simple, fast and reliable analysis system of beer.

Analysis of Zinc in Wort

Zinc analysis allows, in a simple and fast way, to quantify the concentration of the analyte in the wort during the production process. Zinc is an indispensable element for the correct activity of yeasts and therefore measuring its concentration allows to avoid fermentation issues.

Method

Sample treatment

Use on wort. Centrifuge the sample before analysis with the appropriate centrifuge (code 222061). In case of CO2, degas the sample with the ultrasonic bath (code 222062).

Principle of the test

Zinc reacts in an alkaline environment with a chromogen to form a colored complex, whose absorbance measured at 578 nm is proportional to the amount of analyte present in the water sample.

Calibration curve

The calibration curve was created compared to reference method ICP-MS. The trend of the curve confirmed an excellent linearity of the system over the whole measuring range.

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Reagent test Kits

Code*300990: 100 tests
Code*300995: 10 tests
The reagents have a shelf-life of 6 months

Measuring range

AnalysesMeasuring rangeResolutionRepeatability
Zinc [0.9 - 10] mg/L0.9 - 10 mg/L0.01 mg/L0.16 mg/L
Zinc [0.1 - 1] mg/L0.1 - 1 mg/L0.01 mg/L0.02 mg/L

The Analyzers for process and quality control in beer brewing

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CDR BeerLab®

  • 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)

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CDR BeerLab® Jr

  • Partial analysis panel, customisable configuration

  • Up to 3 determinations simultaneously

  • Wireless connection to external printer

  • USB connections