Plant-derived food chemical pollutant risk analysis and detection method

A plant-derived and risk analysis technology, applied in the field of risk analysis and detection of plant-derived food chemical contaminants, can solve the problems of low detection accuracy, single detection, and inability to effectively detect radioactive contamination, etc. The effect of accurate detection results

Pending Publication Date: 2020-10-16
龙口海关综合技术服务中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] (1) Existing chemical pollution detection methods or related detection technologies for plant-derived foods can only detect heavy metals or chemical pollution, and cannot achieve simultaneous detection of both
[0006] (2) The detection accuracy of the existing technology is not high
[0007] (3) Unable to assess food health risks
[0008] (4) Unable to effectively detect radioactive contamination

Method used

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  • Plant-derived food chemical pollutant risk analysis and detection method
  • Plant-derived food chemical pollutant risk analysis and detection method
  • Plant-derived food chemical pollutant risk analysis and detection method

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Embodiment 1

[0110] The plant-derived food chemical pollutant risk analysis and detection method provided by the embodiment of the present invention are as follows: figure 1 As shown, as a preferred embodiment, the method for analyzing and detecting pesticide residues by gas chromatography and gas-mass spectrometry includes:

[0111] First, the detection of organophosphorus pesticides:

[0112] First, weigh the sample, add an appropriate amount of acetonitrile to the dry sample, and add an appropriate amount of sodium chloride to the wet sample. After shaking for a period of time, add a certain amount of ethyl acetate, mix again, centrifuge at 6000r / min for 10min, and take the supernatant; The residue was extracted twice with quantitative ethyl acetate, and the three extracts were combined, concentrated to 1.0 mL at 40°C on a nitrogen blower, purified with an activated carbon column, and the activated carbon column was installed on a solid-phase extraction vacuum filtration device , wash ...

Embodiment 2

[0116] The plant-derived food chemical pollutant risk analysis and detection method provided by the embodiment of the present invention are as follows: figure 1 As shown, as a preferred embodiment, the heavy metal residue detection method includes:

[0117] Take a certain amount of sample and put it into a polytetrafluoroethylene digestion tank, add 3mL of concentrated nitric acid, 2mL of 30% hydrogen peroxide, and 200μL of hydrofluoric acid for microwave digestion; after digestion, cool down, remove the digestion tank, and place it on an electric heating plate at 150°C Drive the acid to nearly dry with 2% HNO 3 Rinse the digestion inner tank, transfer the digestion solution into a 25mL volumetric flask, 2% HNO 3 The inner tank of the digestion was washed several times, the washing liquid was combined in a volumetric flask and adjusted to the scale, mixed well for later use, and a blank control and a standard sample calibration control were made simultaneously, and heavy meta...

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Abstract

The invention belongs to the technical field of food safety, and discloses a plant-derived food chemical pollutant risk analysis and detection method. The method comprises the steps of acquiring food-related data through a food tracing module; selecting a to-be-detected plant-derived food sample through a sample acquisition module and processing the to-be-detected plant-derived food sample; determining risk factors of the plant-derived food through a risk factor determination module, carrying out risk evaluation and classified statistics, and meanwhile outputting a risk analysis table; carrying out health risk evaluation through the food health risk evaluation module, and finally carrying out health data storage and display. The method is simple, convenient and rapid to operate, accuratein detection result and capable of detecting heavy metal, pesticide and radioactive chemical pollution; risk evaluation and health risk evaluation can be carried out on the basis of detected chemicalpollutants, the risk analysis table is output, the chemical pollution types of different types of food in different production places, different transportation processes and different storage processes are comprehensively and accurately mastered, and food safety control is facilitated.

Description

technical field [0001] The invention belongs to the technical field of food safety, and in particular relates to a method for risk analysis and detection of plant-derived food chemical pollutants. Background technique [0002] At present, food is an important material basis for human survival and development, but in today's world, while promoting the development of industry, agriculture and economy and trade, human beings have caused pollution to the environment and food. For example, heavy metal pollution and agricultural chemical residues in plant-derived foods cause human poisoning through bioaccumulation; aflatoxins, sulfur dioxide, etc. will pose a threat to human health; harmful organisms will also affect the quality of plant-derived foods, reducing Product competitiveness in the market. Carrying out risk analysis and countermeasure research on plant-derived foods is of great significance to meeting the basic needs of the people, improving food safety, reducing food h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G01N30/02G01N30/72G01N27/62G01N1/44G01N24/08
CPCG01N1/44G01N24/08G01N27/62G01N30/02G01N30/72G06Q10/0635G06Q10/06393
Inventor 吕斐王志宏鞠茵崔常勇
Owner 龙口海关综合技术服务中心
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