Sample extraction and separation device for corn flour biotoxin detection

Abstract

The invention discloses a sample extraction and separation device for corn flour biotoxin detection. The sample extraction and separation device comprises a separation box and a box cover located on one side of the top of the separation box. According to the sample extraction and separation device for corn flour biotoxin detection, when corn flour is fed, grinding treatment is conducted on the corn flour in advance, it is guaranteed that the thickness of the corn flour entering the centrifugal tube is consistent, and the sample extraction and separation effect is improved. Through the arranged extraction mechanism, centrifugal force is applied to conduct centrifugal treatment on the mixture in each centrifugal tube until the interior of each centrifugal tube is layered up and down, a driving motor is turned off, an output shaft of the driving motor drives a centrifugal frame to rotate until the multiple centrifugal tubes are located under the multiple liquid guide tubes, and finally supernate in the multiple centrifugal tubes is extracted through a liquid extraction tube, so a virus detection sample is obtained. The extraction and separation efficiency of the sample is effectively improved, and the phenomenon of sample emulsification is avoided.

Description

technical field [0001] The invention relates to the technical field of sample detection, in particular to a sample extraction and separation device for detection of corn flour biotoxins. Background technique [0002] There are different thicknesses of corn flour. Corn flour is rich in nutrients. According to the color, there are yellow corn flour and white corn flour. There are also waxy corn flour according to the type. There are many corn flour foods. Grain alcohol, vitamin E, cellulose, etc., have various health effects such as lowering blood pressure, lowering blood fat, anti-arteriosclerosis, preventing colon cancer, beautifying the skin, delaying aging, etc. Nutritional ingredients and conditioning functions, and improve the shortcomings of bad taste and indigestibility of coarse grain noodles. [0003] In the traditional detection process, the detection and extraction efficiency of biotoxins in corn flour samples is low, because corn flour is a grain, and the water c...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the present invention provides a sample extraction and separation device for the detection of corn flour biotoxins. By setting the abrasive assembly inside the sample extraction and separation device, the abrasive assembly includes an abrasive motor, an abrasive plate, a fixing frame, A filter screen, a scraper bar and a scraper plate, an abrasive motor is fixedly connected above the inside of the feed frame, and one end of the output shaft of the abrasive motor passes through the feed frame and extends to the inside of the feed frame, the feed frame The inside of the fixed frame is fixedly connected with a fixed frame, and the inside of the fixed frame is fixedly connected with a filter screen, and one end of the output shaft of the abrasive motor extending to the inside of the feeding frame is fixedly connected with an abrasive plate, and the inside of the abrasive plate is provided with a blanking hole, The bottom surface of the abrasive plate is provided with abrasive protrusions, and the bottom surface of the abrasive plate is in contact with the upper surface of the filter screen. When the corn flour is fed, the corn flour is subjected to abrasive treatment in advance to ensure that the corn flour entering the centrifuge tube The thickness is consistent to improve the extraction and separation effect of the sample. In addition, through the set extraction mechanism, the mixture inside each centrifuge tube is centrifuged by centrifugal force until the upper and lower layers inside the centrifuge tube are closed. The drive motor is turned off, and the output shaft of the drive motor drives the centrifuge. The rack rotates until several centrifuge tubes are located directly below several catheter tubes, and finally the supernatant liquid inside several centrifuge tubes is extracted through the suction tube to obtain virus detection samples, which effectively improves the extraction and separation efficiency of samples. And it avoids the phenomenon of sample emulsification, and solves the problem that in the traditional detection process, the detection and extraction efficiency of biotoxins in corn flour samples is low, because corn flour is a grain, and the water content of corn flour is low, so it is easy to extract after crushing The liquid forms a suspension, and the final extract is a solid-liquid suspension, which is difficult to filter through filter paper. Sample emulsification often occurs, and it takes a lot of time to stand for stratification, which affects the subsequent filtration and solid-phase extraction steps. The problem

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