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A rapid detector for pesticide residue detection and heavy metal detection

A technology for heavy metals and detectors, applied in biochemical instruments, biochemical equipment and methods, and microbial determination/inspection. High performance, convenient management, and high detection sensitivity

Inactive Publication Date: 2015-02-11
SHANGHAI CO BEST BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing pesticide residue detectors using the enzyme inhibition rate method have many defects, such as cumbersome operation, the detection result cannot be obtained immediately, or the detection result is inaccurate, etc.

Method used

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  • A rapid detector for pesticide residue detection and heavy metal detection

Examples

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Comparison scheme
Effect test

Embodiment 1

[0015] Example 1. Pesticide Residue and Heavy Metal Rapid Detector

[0016] A rapid detector for pesticide residues and heavy metals, including a reagent pack, a test card and a card reader. The reagent in the reagent pack is acetylcholinesterase. There are two test cards, each with two test holes. The card reading instrument includes image acquisition system, image processor, display and control system, data output port and power supply system, image acquisition system and image processor connection, image processor and data output port, display and control system and power supply system connection . The image acquisition system is a digital camera, the image processor is a single-chip microcomputer or a PC, and the display and control system is a liquid crystal touch screen.

[0017] The pesticide residue and heavy metal detection rapid detector of the present invention adopts color reaction to judge whether the sample contains pesticide residue and heavy metal. Due to the...

Embodiment 2

[0019] Example 2. The detection of the vegetable leaves dripped with fenitrothion, malathion and dichlorvos

[0020] 1. Detection

[0021] 1. Detection of vegetable leaves dripped with fenitrothion

[0022] (1) Put a small piece of Chinese cabbage leaf sample in a paper cup, take out 400 μL fenitrothion standard sample and drop it on the vegetable leaf.

[0023] (2) Put the paper cup in a ventilated place until the fenitrothion pesticide on the leaf surface volatilizes and nearly dries up.

[0024] (3) Put it in a sealed zipper plastic bag and add 10mL of pure water. The leaves do not need to be chopped.

[0025] (4) Close the zipper and shake it by hand for 10 minutes until the pesticides on the surface of the vegetables are eluted.

[0026] (5) Open the reagent pack, and place the reagent and two test cards on the operating table. Turn on the card reader.

[0027] (6) Use the 1mL disposable pipette provided in the reagent pack to carefully absorb the 1mL eluate process...

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PUM

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Abstract

A rapid detector for pesticide residue detection and heavy metal detection is disclosed. The rapid detector comprises a reagent bag, a detection card, and a card reading instrument. A reagent in the reagent bag is acetylcholinesterase. The detection card is provided with two detection holes. The card reading instrument comprises an image collecting system, an image processor, a display and control system, a data outputting port and a power supply system. The detector is advantageous in that: (1) the detector is simple in operation, and can be operated without professional training; (2) an accurate result can be obtained rapidly in 20 min; (3) a plurality of pesticide residues and heavy metals can be detected, and the detector is high in broad spectrum and high in detection sensitivity; and (4) data can be outputted, printed or loaded through USB, and is convenient in management.

Description

technical field [0001] The invention relates to the technical field of pesticide residue detection on drinking water and foods such as fruits or vegetables, in particular to a rapid detector for pesticide residue and heavy metal detection. Background technique [0002] Pesticide residues refer to the general term for derivatives, metabolites, pesticide precursors, degradation products and impurities that remain in the environment, organisms and food after pesticide use. The main pesticides that cause excessive pesticide residues in vegetables are organophosphorus pesticides and carbamate pesticides that are prohibited in vegetable production in some countries, such as parathion, methamidophos, phorate, omethoate, and methyl parathion Phosphorus etc. Eating vegetables with excessive pesticide residues is very harmful to the human body and can easily cause acute poisoning and even death. [0003] One of the most effective ways to control the harm of pesticide residues to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/34
CPCC12Q1/46
Inventor 郑晶王紫薇杨秀琴杨菊华陈信燕
Owner SHANGHAI CO BEST BIOTECH