Test of hydrogen peroxide concentration in milk

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Hydrogen peroxide in milk

  • Hydrogen peroxide in milk

Hydrogen peroxide is used as a sanitizer of the machinery used for milk treatment. The presence of hydrogen peroxide inside the machinery may contaminate the milk: the scope of the test is the determination of its presence since it would determine milk contamination. The test is also used to determine an addition of hydrogen peroxide in raw milk, before undertaking pasteurization, to increase its duration.

Instruments to Use

FoodLab

Reagents

R1 (pre filled in test tube): phenolic derivatives - phosphate stopper
R2 (dropper): Peroxides

Test method

Test type: End Point
Colour reading at 505 nm   
Test time: 5-8 minutes
It is possible to carry out several test sessions with a maximum of 14 samples.
Calibration can be performed by aligning the test to reference values.

Test principle

Hydrogen peroxide, in presence of the peroxides, reacts with a phenolic derivative and forms a pink complex whose intensity, measured at 505 nm, is directly proportional to the concentration of hydrogen peroxide in the sample. The innovative method of CDR is simple, fast, and utilizes a microquantity of the samples.

Sample

Milk as is.

Reagent Kits

The reagents are provided in sealed bags, each containing 10 test tubes. They have a 12 months duration, starting from the production date. Stocking requirements are described on the bag label.
Reagents do not contain dangerous solvents and are ready for use.

Immagine Hydrogen peroxide in milk
KIT CODE SAMPLE VOLUME RANGE
*300325 (100 Test)
*300329 (10 Test)
50 µL milk 1,5 – 25 ppM

Reagent developed by CDR s.r.l
Quality System certified
ISO 9001 Ed. 2008