Agricultural product pesticide residue detection method

A technology of pesticide residues and detection methods, applied in the field of agricultural pesticide residue detection, can solve the problems of large measurement error, long detection period and narrow measurement range of the rapid detection method, so as to improve the detection speed, improve the promotion value, and improve the detection range. Effect

Inactive Publication Date: 2019-01-04
滑县恒琢信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for detecting pesticide residues in agricultural products to solve the problem that the chromatographic detection method for the detection of agricultural products proposed in the above-mentioned background technology is relatively accurate, but the detection period is long and the cost is high. Real-time shipment is required, and the measurement error of the rapid measurement method is large, and the measurement range is relatively narrow.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for detecting pesticide residues in agricultural products,

[0021] Step 1: Obtain the test sample. A small amount of material collected from each part of the whole batch of materials to be analyzed becomes the test sample, and a part of it is randomly selected for analysis and inspection, and the sampling unit, address, date, and sampling conditions are filled in in detail on the sample. Packaging conditions during sampling; samples from the planting base were collected by the five-point sampling method, and a part of the collected samples was randomly selected as samples. During the collection process, attention should be paid to marking the time and conditions of the collection and the packaging of the samples, so as to provide a more comprehensive good result error analysis data;

[0022] Step 2: Test material preparation, configure pH7.5 buffer solution, first weigh 9.08g of potassium dihydrogen phosphate, dissolve it in distilled water, pour it into a 100...

Embodiment 2

[0034] A method for detecting pesticide residues in agricultural products,

[0035] Step 1: Obtain the test sample. A small amount of material collected from each part of the whole batch of materials to be analyzed becomes the test sample, and a part of it is randomly selected for analysis and inspection, and the sampling unit, address, date, and sampling conditions are filled in in detail on the sample. Packaging conditions during sampling; samples from the planting base were collected by the five-point sampling method, and a part of the collected samples was randomly selected as samples. During the collection process, attention should be paid to marking the time and conditions of the collection and the packaging of the samples, so as to provide a more comprehensive good result error analysis data;

[0036] Step 2: Take a representative vegetable sample and wipe off the soil on the surface. When wiping off the soil, do not wipe it with wet paper. You can use a brush to remove...

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PUM

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Abstract

The invention discloses an agricultural product pesticide residue detection method. Detected samples are obtained, a small quantity of materials collected from all portions of a whole batch of analyzed materials become the detected samples, parts of the test samples are randomly drawn for analysis and test, and sampling units, addresses, dates, sampling conditions and sampling package conditions are detailedly written on the samples. By the aid of test paper with immobilized cholinesterase and indophenol acetate, catalysis, hydrolysis and discoloration processes are changed according to the inhibiting effect of organophosphorus pesticides on butyrylcholine esterase, so that whether the samples contain excessive organophosphorus pesticides or not can be judged, two batches of detection cards are simultaneously used for detection in the detection process, the probability of detection failure caused by enzyme failure can be reduced, detection liquid is burned, flame reaction is performed,organo-chlorine pesticides can be detected, detection speed is increased, detection time and steps are saved, detection range is widened, and the method has excellent popularization values.

Description

technical field [0001] The invention belongs to the technical field of agricultural product detection, and in particular relates to a method for detecting pesticide residues in agricultural products. Background technique [0002] Pesticides are a "double-edged sword" and play an extremely important role in promoting agricultural production. However, due to the inherent chemical properties of the pesticide itself and its improper use, the pesticide residues in agricultural products have seriously exceeded the standard, seriously endangering the health of the broad masses of the people. Among the pesticides in our country, 70% are organophosphorus pesticides, and the organophosphorus pesticides produced and used in our country Among the pesticides, 70% are highly toxic and highly toxic, and most of them are prohibited from being used on vegetable crops. [0003] However, although the chromatographic detection method used for the detection of agricultural products is relativel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/72G01N21/78
CPCG01N21/72G01N21/78G01N2021/7759
Inventor 张晓芬
Owner 滑县恒琢信息科技有限公司
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