Beer

Zinc analysis with CDR BeerLab® allows, in a simple and fast way, to quantify the concentration of the analyte in the water used in the brewing process.

Determination of zinc in water

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

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CDR BeerLab®

Test type: End Point.Time testing: [uni].Analysis sessions with multiple samples are possible up to a maximum of 16 tests for CDR BeerLab® and 3 tests for CDR BeerLab® Junior.

Method

Place the test tubes containing reagent R1 in one of the incubation cells and let them warm for at least 5 minutes.

Add 200 µL of R2 to the cuvette without touching the tip in the liquid. In case of contamination, replace the tip.

Place the cuvette in one of the incubation cells and start the timer by pressing  the timer icon.

Place the cuvette in the cell marked with the blue light and press READ to perform the photometric reading.

Collect 500 µL of sample with a pipette. Use a new tip for each test to prevent contamination from previous samples.

Carefully clean the outside of the pipette tip with blotting paper, avoiding contact between the extremity of the tip and the paper.

Place the sample in the cuvette. Keeping the tip immersed in reagent, press and release the piston of the pipette several times.

Sample treatment

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.

Principle of the test

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

Calibration curve

The calibration curve of the zinc analysis on water with CDR BeerLab® obtained using standard zinc solutions. R² = 0.9998

Reagent test Kits

Measuring range

CDR BeerLab® the beer analyzer, Junior version

CDR BeerLab® Jr

The Analyzers for process and quality control in beer brewing

Zinc in water

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Olive oil

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Food

Wine

Cider

Kombucha

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Water for coffee preparation

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