Pretreatment device applied to food polychlorophenol detection and treatment method thereof

A polychlorinated phenol and food technology is applied in the field of pretreatment devices for the detection of food polychlorinated phenols, which can solve the problems of complex food components, and achieve the effects of good removal effect, wide application range and strong compatibility.

Active Publication Date: 2022-02-01
广东宇华智环科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the high requirements of this type of detection method for detection samples, and the complex ingredients in food, it is difficult for the existing technology to meet the requirements for the processing methods of food samples, and there is an urgent need for a high-sensitivity, high-pass Quantitative detection sample pretreatment device and processing method thereof

Method used

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  • Pretreatment device applied to food polychlorophenol detection and treatment method thereof
  • Pretreatment device applied to food polychlorophenol detection and treatment method thereof
  • Pretreatment device applied to food polychlorophenol detection and treatment method thereof

Examples

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Embodiment 1

[0054] A pretreatment device applied to the detection of polychlorinated phenol in food, characterized in that it includes a cover part 1, and first installation holes (not marked) are symmetrically provided on the cover part, and the first installation holes are connected to There is a diversion column 2, and a solid phase extraction column 3 is connected above the diversion column;

[0055] A mounting portion 4 is connected below the cover portion, and a limit frame 5 is arranged inside the mounting portion, and a collecting portion 6 is arranged symmetrically on the limit frame, and a joint portion 7 is connected above the collecting portion, and the guide The lower part of the flow column is internally connected with the collection part through the joint part;

[0056] Described solid-phase extraction column 3 comprises sleeve 31, is provided with sieve plate 32, first packing part 33, the second packing part 34, the 3rd packing part 35 in described sleeve, described first...

Embodiment 2

[0071] This embodiment provides a pretreatment device applied to the detection of food polychlorinated phenols with the same structure as that of Embodiment 1. The difference is that the sleeve of the solid-phase extraction column is filled with the first packing part from bottom to top. , then install the third packing part, and finally install the second packing part.

[0072] Through the synergistic effect of the first packing part, the second packing part and the third packing part of the present invention, the effluent of the solid phase extraction column is a clear liquid, which can effectively remove the pigment and ensure a high recovery rate of polychlorinated phenol substances.

Embodiment 3

[0074] This embodiment provides a pretreatment device applied to the detection of food polychlorinated phenols with the same structure as that of Embodiment 1. The difference is that the sleeve of the solid-phase extraction column is filled with the second packing part from bottom to top. , then install the third packing part, and finally install the first packing part.

[0075] Through the synergistic effect of the first packing part, the second packing part and the third packing part of the present invention, the effluent of the solid phase extraction column is a clear liquid, which can effectively remove the pigment and ensure a high recovery rate of polychlorinated phenol substances.

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Abstract

The invention provides a pretreatment device applied to food polychlorophenol detection and a treatment method thereof. The pretreatment device comprises a cover plate part, first mounting holes are symmetrically formed in the cover plate part, flow guide columns are connected into the first mounting holes, and solid-phase extraction columns are connected to the upper portions of the flow guide columns; and a mounting part is connected to the lower portion of the cover plate part, a limiting frame is arranged in the mounting part, collecting parts are symmetrically arranged on the limiting frame, connector parts are connected to the upper portions of the collecting parts, and the lower portions of the flow guide columns are connected with the collecting parts through the connector parts. The solid-phase extraction column disclosed by the invention is used for purification so that the pigment removal effect is good, the recovery rate is high, and the deficiency of a pretreatment method for detecting polychlorophenol in agricultural products is made up; and the pretreatment method established by the invention is high in compatibility, can be compatible with liquid chromatography-tandem mass spectrometry and liquid chromatography-ion trap-time-of-flight mass spectrometry detection methods, and is wide in application range.

Description

technical field [0001] The invention belongs to the technical field of food safety detection, and in particular relates to a pretreatment device and a processing method applied to food polychlorinated phenol detection. Background technique [0002] Polychlorinated phenols are mainly used as insecticides, disinfectants, antifungal agents and wood, latex, leather preservative dye intermediates, fungicides, and also used as solvents for polyester fibers and prevention and control of wood rot fungi, etc. Inhalation, ingestion or It is harmful to the body after being absorbed through the skin. Because it involves the quality and safety of human food and human health, many polychlorinated phenols have been restricted by regulations or industry standards for use in wood, textiles, and food contact materials. [0003] At present, the determination methods of polychlorinated phenol mainly include fluorescence spectrometry, liquid chromatography, gas chromatography, gas chromatography...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06G01N30/08G01N30/14G01N30/02G01N30/72
CPCG01N30/06G01N30/08G01N30/14G01N30/02G01N30/72
Inventor 杨维域颜如剑甘卫卫孙家军连献来阳叶威林婷吴永彬
Owner 广东宇华智环科技有限公司
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