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MILWAUKEE Mi490 Peroxide Value Photometer
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The Milwaukee Mi490 is a user-friendly photometer for monitoring peroxide value, applied to the process of oil making. This instrument will provide you with direct readings, within a range of 0.0 to 25.0 meq O2 /Kg.
The measurement of the oil's chemical degradation is the peroxide value, which measures the degree to which the oil is oxidized. Rancidification is the decomposition of fats and other lipids by hydrolysis and/or oxidation. Hydrolysis will split fatty acid chains away from the glycerol backbone in glycerides. These free fatty acids can then undergo further auto-oxidation. Oxidation primarily occurs with unsaturated fats by a free radical-mediated process.
One of the most widely used tests for oxidative rancidity, peroxide value is a measure of the concentration of peroxides and hydroperoxides formed in the initial stages of lipid oxidation. Milliequivalents of peroxide per kg of fat are measured by titration via iodide ions. Peroxide values are not static and care must be taken in handling and testing samples. It is difficult to provide a specific guideline relating peroxide value to rancidity. High peroxide values are a definite indication of a rancid fat, but moderate values may be the result of depletion of peroxides after reaching high concentrations.
Features:
Monitors peroxide value in oil making within a range of 0.0 to 25.0 meq O2 /Kg
User friendly
Long battery life
Advanced optical system
Automatic shut-off after 15 minutes of non-use
What's In The Box:
(1) Set of Reagents for 20 Tests
(4) 1 mL Syringe
(1) Tissue for Wiping Cuvettes
(4) 1.5V AA Batteries
(1) Instruction Manual