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Agricultural product surface drug residue detection method

A detection method and technology for agricultural products, applied in measuring devices, instruments, material analysis by optical means, etc., can solve the problems of expensive equipment, long analysis period, and high detection cost, and achieve simple pre-processing, low cost, and avoidance of Effects of poisoning events

Inactive Publication Date: 2020-12-18
衡阳市红彤彤农副产品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing pesticide residue detection methods usually use advanced instrument analysis such as gas-liquid chromatography and high-performance liquid chromatography, which have good specificity and high sensitivity, but the analysis period is long, the equipment is expensive, and it is not easy to popularize at the grassroots level, and the cost of detection is relatively high. high

Method used

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  • Agricultural product surface drug residue detection method

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Effect test

Embodiment 1

[0032] In this embodiment, a method for detecting drug residues on the surface of agricultural products: a method for detecting drug residues on the surface of agricultural products,

[0033] Several agricultural products; intrinsic cholinesterase and indophenol acetate test paper; constant balance;

[0034] Further: Select a representative vegetable sample, wipe off the soil on the surface, cut into pieces about 1cm square, take 5g into a bottle with a cap, add 10ml of buffer solution, shake 50 times, and let it stand for more than 5min;

[0035] Take a piece of intrinsic cholinesterase and indophenol acetate test paper, soak the extract with white test paper, and place it in a thermostat for 20 minutes for pre-reaction to keep the surface of the test paper moist;

[0036] Fold the test paper in half and place it in an incubator for 5 minutes, so that the red test paper and the white test paper overlap and react;

[0037] A blank control test paper of a buffer solution is se...

Embodiment 2

[0043] In this embodiment, a method for detecting drug residues on the surface of agricultural products: a method for detecting drug residues on the surface of agricultural products,

[0044] Several agricultural products; intrinsic cholinesterase and indophenol acetate test paper; constant balance;

[0045] Further: Select a representative vegetable sample, wipe off the soil on the surface, cut into pieces about 1cm square, take 5g into a bottle with a cap, add 10ml of buffer solution, shake 50 times, and let it stand for more than 5min;

[0046] Take a piece of intrinsic cholinesterase and indophenol acetate test paper, soak the extract with a white test paper, and place it in an incubator for 30 minutes for pre-reaction, keeping the surface of the test paper moist;

[0047] Fold the test paper in half and place it in an incubator for 5 minutes, so that the red test paper and the white test paper overlap and react;

[0048] A blank control test paper of a buffer solution is...

Embodiment 3

[0054] In this embodiment, a method for detecting drug residues on the surface of agricultural products: a method for detecting drug residues on the surface of agricultural products,

[0055] Several agricultural products; intrinsic cholinesterase and indophenol acetate test paper; constant balance;

[0056] Further: Select a representative vegetable sample, wipe off the soil on the surface, cut into pieces about 1cm square, take 5g into a bottle with a cap, add 20ml of buffer solution, shake 50 times, and let it stand for more than 5min;

[0057] Take a piece of intrinsic cholinesterase and indophenol acetate test paper, soak the extract with white test paper, and place it in a thermostat for 20 minutes for pre-reaction to keep the surface of the test paper moist;

[0058] Fold the test paper in half and place it in an incubator for 5 minutes, so that the red test paper and the white test paper overlap and react;

[0059] A blank control test paper of a buffer solution is set ...

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Abstract

The invention belongs to the technical field of agricultural product detection, and particularly relates to an agricultural product surface drug residue detection method. The method is conducted withthe following materials: a plurality types of agricultural products, inherent cholinesterase and indophenol acetate test paper, a constant balance, an incubator, a buffer solution with pH being 7.5, 15.0 g of disodium hydrogen phosphate, 1.59 g of anhydrous potassium dihydrogenphosphate, and 500 ml of distilled water. The agricultural product surface pesticide residue detection method can effectively detect whether pesticide residues exist on the surface of an agricultural product or not, has the advantages of being rapid, convenient, easy and convenient to treat in the earlier stage, low in cost and the like, is suitable for on-site qualitative determination, and is suitable for large-scale popularization and application. The method is especially suitable for rapid detection work in vegetable production bases, wholesale markets and agricultural product detection departments.

Description

technical field [0001] The invention belongs to the technical field of agricultural product detection, in particular to a method for detecting drug residues on the surface of agricultural products. Background technique [0002] Chemical pesticides are widely used in the prevention and control of agricultural diseases and insect pests due to their high-efficiency and rapid placement. However, due to the difficulty in degrading the toxic components of chemical pesticides, these toxic substances accumulate in agricultural products and the environment, causing damage to the environment and agricultural products. pollute. [0003] As the saying goes, the country is based on the people, the people depend on food, and food is the first priority. At present, the problem of pesticide residues in agricultural products is the most prominent problem affecting food safety. It is reported from time to time that pesticide poisoning occurs due to the use of foods with excessive pesticide r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
CPCG01N21/78G01N2021/7759
Inventor 谢宇翔刘娟刘衡张翠连贺信凯
Owner 衡阳市红彤彤农副产品有限公司
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