Water for coffee preparation

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

Determination of chloride 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>Sample treatment</h3>Use water solution as is.

Method

The chloride ions react with the mercuric thiocyanate and release thiocyanate ions. The thiocyanate ions react with Fe (III) giving an orange complex whose intensity, measured at 520 nm, is directly proportional to the concentration of chlorides in the sample.

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/Chlorides_r_b049b496f9.jpg" alt="The calibration curve of the analysis of chlorides on water with CDR CoffeLab obtained using standard solutions of chlorides. R²=0.9974"></figure>

Calibration curve

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Measuring range

CDR CoffeeLab

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

Chloride in water

Oils and fats

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Milk and dairy products

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Green coffee, roasted coffee and beverage

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CDR CoffeeLab®

Analyses on Coffee

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