Beer

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.

Analysis of Zinc in Wort

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

cdrbeerlab-inclinato.png

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

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).

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

Calibration curve

CDR BeerLab® calibration curve for the analysis of zinc in wort constructed by comparison with the reference method ICP-MS. R² = 0.9951

Code*300990: 100 tests Code*300995: 10 tests <div class='font-bold'>The reagents have a shelf-life of 6 months</div>

Reagent test Kits

<table class='table-auto'><tbody><tr style='border-bottom-width: 1px; border-color:#e4e9f2;'><th style='padding: .75rem 1.5rem .75rem 0; text-align: left;'>Analyses</th><th style='padding: .75rem 1.5rem .75rem 0; text-align: left;'>Measuring range</th><th style='padding: .75rem 1.5rem .75rem 0; text-align: left;'>Resolution</th><th style='padding: .75rem .75rem .75rem 0; text-align: left;'>Repeatability</th></tr><tr style='border-bottom-width: 1px; border-color:#e4e9f2;'><td style='padding: .75rem 1.5rem .75rem 0; text-align: left;'>Zinc [0.9 - 10] mg/L</td><td style='padding: .75rem 1.5rem .75rem 0; text-align: left;'>0.9 - 10 mg/L</td><td style='padding: .75rem 1.5rem .75rem 0; text-align: left;'>0.01 mg/L</td><td style='padding: .75rem .75rem .75rem 0; text-align: left;'>0.16 mg/L</td></tr><tr><td style='padding: .75rem 1.5rem .75rem 0; text-align: left;'>Zinc [0.1 - 1] mg/L</td><td style='padding: .75rem 1.5rem .75rem 0; text-align: left;'>0.1 - 1 mg/L</td><td style='padding: .75rem 1.5rem .75rem 0; text-align: left;'>0.01 mg/L</td><td style='padding: .75rem .75rem .75rem 0; text-align: left;'>0.02 mg/L</td></tr></tbody></table>

Measuring range

CDR BeerLab® the beer analyzer, Junior version

CDR BeerLab® Jr

The Analyzers for process and quality control in beer brewing

Zinc

Oils and fats

Frying oils and fried snacks

Fish Oil

Olive oil

Palm oil

Bakery products and spreads

Nuts

Milk and dairy products

Egg products

Tomato derivatives

Vinegar

Food

Wine

Cider

Kombucha

Coffee Fermentation

Green coffee, roasted coffee and beverage

Water for coffee preparation

Analyses of Soft Drinks with CDR DrinkLab

Soft Drinks

Analyses of Fruit Juices with CDR DrinkLab

Fruit Juices

Tea Analysis from Leaves to Drink with CDR DrinkLab

Analyses of Plant-based Beverages with CDR DrinkLab

Plant-based Beverages 

Kefir

Analyses of Drinking Water with CDR DrinkLab