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Method and device for detecting milk SDS by using surface tension sandwich effect

A surface tension, sandwich technology, applied in the direction of surface tension analysis, measuring devices, material analysis through optical means, etc., to achieve the effect of high promotion value

Active Publication Date: 2017-05-17
上海梭伦信息科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a method and device for detecting milk SDS by using the surface tension sandwich effect, which solves the problem of detecting whether sodium dodecyl sulfate (SDS) is added to milk

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  • Method and device for detecting milk SDS by using surface tension sandwich effect

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Embodiment Construction

[0029] In order to easily understand the technical means, creative features, goals and effects of the present invention, the present invention will be further described below in conjunction with specific illustrations.

[0030] The detection device specially designed for this method, the specific implementation method is as follows:

[0031] Such as Figure 1-Figure 3 As shown, the device for detecting milk SDS by using the surface tension sandwich effect includes a base 1, a three-dimensional adjustable sample stage 2 is provided in the middle of the base 1, an electrical control box 3 and an L-shaped bracket 4 are respectively installed at both ends of the base 1, and the electrical control The box 3 is provided with a light source 31, and the middle part of the L-shaped bracket 4 is provided with an adjustable platform 5, on which the matching lens 6 and camera 7 are fixed, the light source 31 is just opposite to the lens 6, and the top of the L-shaped bracket 4 A Z-direct...

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Abstract

The invention discloses a method and device for detecting milk SDS by using the surface tension sandwich effect and belongs to the field of milk SDS detection. The method comprises the following steps of (1) forming a hanging drop and a sessile drop by a straight probe and a U-shaped probe separately; (2) irradiating the hanging drop and the sessile drop by using a light source, shooting the hanging drop and the sessile drop in a same drop image, and storing the drop image; (3) segmenting the drop image by using multiple interested ranges (ROI) to form a hanging drop region and a sessile drop region; (4) calculating surface tension values of the hanging drop region and the sessile drop region separately; and (5) judging whether the condition of adding sodium dodecyl sulfate (SDS) exists in a milk sample or not. According to the method and the device, whether SDS is added to the milk or not and whether the milk is fresh milk or not can be judged.

Description

technical field [0001] The invention relates to a method and a device for detecting milk SDS by using surface tension sandwich effect, belonging to the field of milk SDS detection. Background technique [0002] At present, there are many methods for measuring surface tension, mainly including the Wilhelmy Plate method, the DuNouy Ring method, the Max bubble pressure method, the Drop Volume method, and the hanging drop method. method (pendant drop method) and stop drop method (Sessile drop method) and so on. When all the methods are used alone, they can only analyze and test the surface tension or interfacial tension value in the interfacial chemical phenomenon of liquid-gas or liquid-liquid interface monomolecular structure. These methods are applicable when used to test samples of pure chemical substances (such as water, alcohol, benzene, etc.). However, in practical applications or in real life, almost no samples are pure samples, usually mixed samples including very com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N13/02G01N21/84
Inventor 施建辉
Owner 上海梭伦信息科技有限公司
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