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A detection and purification column for toxic and harmful substances in ecological textiles and its preparation method

A technology for harmful substances and textiles, which is used in the preparation of test samples to improve the degree of cleanliness, avoid poor purification effects, and ensure accuracy.

Inactive Publication Date: 2019-05-07
吉林出入境检验检疫局检验检疫技术中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention discloses a detection and purification column for toxic and harmful substances in ecological textiles. The solid phase extraction column for textiles of the present invention is applied to sample purification pretreatment, and can be used for toxic and harmful substances such as flame retardants, plasticizers, and polycyclic aromatic hydrocarbons in textiles. It solves the shortcomings of poor purification effect of traditional products, improves the cleanliness of samples, increases the accuracy of sample detection, and has the characteristics of fast, economical and strong versatility

Method used

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  • A detection and purification column for toxic and harmful substances in ecological textiles and its preparation method
  • A detection and purification column for toxic and harmful substances in ecological textiles and its preparation method
  • A detection and purification column for toxic and harmful substances in ecological textiles and its preparation method

Examples

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Effect test

Embodiment 1

[0031] Polyamino group-bonded silica gel modified by gold nanoparticles

[0032] Take 10g of 50um fully porous silica gel and add it to the reactor, then add 100mL of xylene, 10g of diaminosilane reagent, and 0.5mL of pyridine to reflux the reaction for 24 hours, then cool down, and wash the product with 200mL of toluene, dichloromethane, methanol, and acetone After drying, put it into another reactor, add 0.1g of Au nanoparticles with a diameter of 10-15nm obtained by sodium citrate reduction of chloroauric acid method, disperse in ethanol solution, stir at room temperature for 6h, and remove 200mL of ionized water and ethanol Wash 2~3 times, and dry in vacuum at 80°C for 24h to obtain Si-NH2-Au composite material.

Embodiment 2

[0034] Multi-acidic group modified high molecular cross-linked polymer

[0035] Add 10g of porous polystyrene microspheres, 100mL of sulfuric acid, and 100mL of glacial acetic acid into the reactor, heat to 70°C, react for 24 hours, filter the product, wash it with a large amount of water until it is neutral, and then dry it to obtain the product.

Embodiment 3

[0037] Modified hydrophilic sieve plate

[0038] Add 100 pieces of common PE sieve plates, 500 ml of absolute ethanol, 5 g of vinylpyridine, 2.3 g of azobisisobutylcyanide into the reactor, stir thoroughly for 30 minutes, raise the temperature of the reactor to 80°C, react for 24 hours, and filter , washed with ethanol, dichloromethane, and acetone, respectively, with 500 ml each, and dried at 80°C to obtain the product.

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Abstract

The invention discloses an ecological textile toxic and harmful substance detection and purification column and a preparation method thereof. An outlet screen plate is pressed into the bottom of a column body, gold nanoparticle modified multi-amino-group bonded silica gel (adsorbent) is charged, a layer of isolation screen plates is pressed, then a multi-acidic-group modified polymer crosslinked polymer (adsorbent) is charged, and finally an inlet screen plate is pressed. An extraction column outlet is formed in the bottom of the column body. The column is used for extraction and purification of samples subjected to residue detection of toxic and harmful substances in ecological textiles. The solid-phase extraction column can purify complicated sample matrixes such as cloth, gauze, hemp, silk, leather and wool according to a selective adsorption and selective elution principle, remove azo dyes, amino acids, protein, fat and heavy metal and other impurities, provides a clean sample for GC, HPLC, GC-MS, HPLC-MS and analysis instruments, can prolong the service life of analytical instruments, save costs and ensure the accuracy of poisonous and harmful substance detection.

Description

technical field [0001] The invention discloses a toxic and harmful substance detection and purification column for ecological textiles, which is used for sample extraction and purification for the detection of residual toxic and harmful substances in ecological textiles. The purification column achieves extraction and purification by cation exchange (aqueous solution) or polar adsorption (non-polar organic solution). The invention also discloses a preparation method of the solid phase extraction column, which belongs to the technical field of analytical chemical materials. Background technique [0002] my country is a big country in the production and export of textiles. In order to ensure the smooth export of textiles in my country, according to the latest requirements of the OEKO-TEX Standard 100 standard, focusing on the blank items and backward items in the detection technology of toxic substances in ecological textiles, fast solvent extraction and ultrasonic assisted ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28G01N1/34
Inventor 李爱军牟峻王明泰张勋张代辉胡婷婷康明芹吴连鹏
Owner 吉林出入境检验检疫局检验检疫技术中心
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