Device and method for detecting liquid characteristic of amiable oxidizing substance

Abstract

The invention relates to an in-liquid character detection device and method for readily oxidizable substance used in measuring oxygen consumption and related characteristic parameter of in-liquid readily oxidizable substance and belongs to the characteristic parameter detection of in-liquid readily oxidizable substance of foodstuff, cosmetics and chemicals technical field. The detection device comprises a U-shaped differential pressure meter, an oxygen electrode, a retort, a magnetic stirring apparatus and a water flow circulating type insulated jacket, etc. According to the experimental curves of height hT and time t of the U-shaped differential pressure meter under different temperatures and the different experimental curves of oxygen concentration coT, i and time t at different heights in liquid, the invention can judge the characteristic difference of different batches of the readily oxidizable substance; meanwhile, the invention can determine structural design parameter and production of equipment, technological parameter for storage and particularly the technological parameters which need frequent adjustment and change; moreover, according to experimental data, the invention can analyze oxygen diffusion in liquid and reaction with oxidized matter to establish a diffusion and oxidation kinetics model; therefore, characteristic parameter can be obtained through more accurate soft measurement.

Description

Technical field: [0001] The invention relates to an in-liquid property detection device and method for easily oxidizable substances, which are used for measuring the oxygen consumption and related characteristic parameters of easily oxidizable substances in liquid, especially the easily oxidizable substances in food and cosmetic emulsion systems—unsaturated fatty acids The measurement of the oxidation characteristics of the liquid provides a technical basis for the processing technology, preservation technology, and equipment design and parameter control of the easily oxidizable substances in the liquid. The oxygen consumption and related characteristic parameters of the easily oxidizable substances in the liquid belong to food, cosmetics and chemicals. The technical field of detection. Background technique: [0002] In the process of production and storage, the oxidation of easily oxidizable substances in the liquid must be limited. When designing production equipment, stor...

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Problems solved by technology

Before the present invention, in the prior art, the unsaturated fatty acid oxidation detection device (CN 200520069319.6) in the emulsion is to simulate the static packaging storage state, and its defect is: it cannot be tested at a constant temperature at different temperatures; it uses a vacuum gauge to measure the oxygen pressure, The measurement accuracy is not high enough; the stirring and heating process in the production state cannot be simulated; the device structure is complex, the volume is large, the manufacturing cost is high, and there are many experimental consumables

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