Water for coffee preparation

Potassium analysis with CDR CoffeeLab allows, in a simple and fast way, to quantify the concentration of the analyte in the water used for making coffee.

Determination of potassium in water

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

Test type: End Point. Time testing: [uni]. Are possible test sessions with several samples, up to 16 for CDR CoffeeLab<h3 style="margin-left:0px;">Sample treatment</h3>Use water solution as is.

Method

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

Test Principle

The calibration curve was constructed using standard chloride solutions. The trend of the curve confirmed an excellent linearity of the system over the whole measuring range.<figure class="image"><img src="https://s3-foodlab.s3.eu-central-1.amazonaws.com/Potassium_17239cb0af.jpg" alt="The calibration curve of the analysis of potassium on water with CDR CoffeeLab obtained using standard potassium solutions. R²=0.9952"></figure>

Calibration curve

Reagent test Kits

Measuring range

CDR CoffeeLab

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

Potassium in water

Oils and fats

Frying oils and fried snacks

Fish Oil

Olive oil

Palm oil

Bakery products

Nuts

Milk and dairy products

Egg products

Tomato derivatives

Vinegar

Food

Wine

Beer

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Kombucha

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Green coffee, roasted coffee and beverage

Beverage

Animal feeds and silages

Pet Food

Animal food and silages

CDR CoffeeLab®

Analyses on Coffee

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