Full-automatic biochemical detection system and detection method for pesticide residue
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A biochemical detection, fully automatic technology, applied in the field of biochemical, environmental and food detection, to improve the detection efficiency and shorten the detection time
Pending Publication Date: 2018-01-09
苏州卡睿知光电科技有限公司 +1
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[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problems that the automatic detection device in
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Embodiment 1
[0062] This embodiment provides a fully automatic biochemical detection system, including a turntable module 1 , a sample adding module 2 , a light detection module 3 and a heating module 4 .
[0063] like figure 1 As shown, the turntable module 1 includes a turntable 11 and a rotating member 12 that drives the turntable to rotate. The turntable 11 is circular, and 12 grooves 111 for placing the reaction tubes 5 are evenly formed on the turntable 11 along the circumferential direction. Put the required number of reaction tubes 5 symmetrically in the groove 111, to ensure the balance when the turntable rotates, for example, put 4 reaction tubes 5 in the 4 symmetrical grooves 111 on the turntable 11, for ease of expression, The four reaction tubes are respectively referred to as a first reaction tube 51 , a second reaction tube 52 , a third reaction tube 53 , and a fourth reaction tube 54 . The groove 111 where the first reaction tube 51 is placed is selected as the quality co...
Embodiment 2
[0084] This embodiment provides a method for detecting pesticide residues, which is completed using the fully automatic biochemical detection system provided in Example 1, specifically comprising the following steps:
[0085] S1, add three kinds of samples to be tested into three reaction tubes 5 in advance, then add a reference solution into another reaction tube 5, and put the four reaction tubes 5 into the grooves 111 on the turntable 11 symmetrically;
[0086] S2, the rotating member 12 drives the turntable 11 to rotate, so that the four reaction tubes 5 pass under the sampling needle 23 in sequence, and the cholinesterase solution and the color developer are quantitatively added dropwise to the reaction tube 5 by the sampling module 2, and the color is developed. The agent is dithiobisnitrobenzoic acid;
[0087] S3, the rotating part drives the turntable to rotate at a speed of ≥100 RMP, then stops in an emergency, repeats 3-5 times, and mixes the solution in the reaction...
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Abstract
The invention provides a fully automatic biochemical detection system, which includes a turntable module, a sample adding module and an optical detection module, wherein the turntable module includes a turntable and a rotating part that drives the turntable to rotate, and the turntable is provided with grooves for placing reaction tubes along the circumferential direction The sampling module includes at least one set of liquid transfer components, droplet sensors and control circuits; the light detection module includes light emitting components and detectors. When the above system is in use, the turntable rotates so that the reaction tube is at the sampling position, and the sample addition module quantitatively adds the detection reagent and/or the sample to be tested into the reaction tube, then the turntable rotates at a high speed, stops to mix the solution, and finally detects it by light. The module measures the absorbance of the solution to obtain the concentration of the solution. Each detection module cooperates with each other to realize efficient and high-accuracy detection. The present invention also provides a method for detecting pesticide residues. Using the above-mentioned detection system, it has the advantages of high detection efficiency and accurate detection results, and is suitable for the application and popularization of large-scale pesticide residue detection.
Description
technical field [0001] The invention relates to the technical fields of biochemistry, environment and food detection, in particular to a fully automatic biochemical detection system and a method for detecting pesticide residues. Background technique [0002] Pesticide residues (Pesticide residues) refers to the general term for the pesticide parent, derivatives, metabolites and impurities that remain in the environment, organisms and food after the use of pesticides. In the usual sense, the detection of pesticide residues is mainly for agricultural products such as vegetables and fruits. detection of pesticide residues. The main causes of excessive pesticide residues in agricultural products are organophosphorus pesticides and carbamate pesticides that are banned in vegetable production in some countries, such as methamidophos, omethoate, parathion and methyl parathion. In order to ensure a good harvest of vegetables and fruits, a large number of pesticides are used or even...
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