Application of functional polymer film in removing heavy metal in traditional Chinese medicine

A technology of functional macromolecules and heavy metals, applied in medical preparations containing active ingredients, membrane technology, ion exchange, etc. Harmful and other problems, to achieve the effect of good biodegradability, effective removal of heavy metals, and good biocompatibility

Inactive Publication Date: 2013-10-02
BEIJING OKEANOS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of the bonded silica-based composite material is complicated, requiring the use of highly toxic organic solvents, and the composite material is in the form of a powder, which is easy to remain in the traditional Chinese medicine extract, and is not easy to degrade, which is harmful to organisms and causes environmental damage. Pollution
[0006] Therefore, none of the above methods can remove heavy metal ions in traditional Chinese medicines in a non-toxic, efficient, rapid and convenient manner.

Method used

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  • Application of functional polymer film in removing heavy metal in traditional Chinese medicine
  • Application of functional polymer film in removing heavy metal in traditional Chinese medicine
  • Application of functional polymer film in removing heavy metal in traditional Chinese medicine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1 Application of Ultrafiltration Membrane in Removing Heavy Metals in Traditional Chinese Medicine

[0027] Select KJ-ESZKM-W2.5T type water aseptic purification, virus removal ultrafiltration membrane (polypropylene hollow fiber ultrafiltration membrane, Hangzhou Kaijie Membrane Separation Technology Co., Ltd.), and its pore diameter is 50nm. In addition, the ordinary filter membrane Durapore filter membrane (polyvinylidene fluoride membrane, Shanghai Huanao Technology Trade Co., Ltd.) was used as a control.

[0028] Take 100g each of the commercially available Folium Folium Folium and Bupleurum Radix, boil them with 500g of water for 1 hour respectively, and divide the obtained medicinal solution into two parts on average, add water to 500mL respectively, and use them as the test group and the control group for parallel experiments. The test group used the complexation-ultrafiltration coupling technology, and added 1% (weight) sodium alginate to the liquid med...

Embodiment 2

[0032] Example 2 The removal of heavy metal ions by ion adsorption membrane

[0033] Mix polyvinyl alcohol and polyvinylamine at a weight ratio of 95:5, add water to dissolve to a total mass concentration of 5%, add glutaraldehyde as a crosslinking agent according to 5% of the total mass of the solution, use hydrochloric acid as a catalyst, and stir well Dried at 30-50°C to form a film, fully swollen with water to remove excess acid, and vacuum-dried to obtain a polyvinylamine functionalized polyvinyl alcohol heavy metal ion adsorption film with a pore diameter of 35-50nm.

[0034] Take 20 g of commercially available licorice extract powder and Radix Radix Radix extract powder, and dissolve them with 100 g of water respectively. The above-mentioned ion adsorption membrane was directly soaked in it, and after soaking for 2 hours, the filtrate was distilled off under reduced pressure to obtain a paste solid. The contents of the five heavy metal ions in the extracts and paste so...

Embodiment 3

[0038] The removal of heavy metal ions in Chinese medicine by cation exchange membrane in embodiment 3

[0039] Styrene is used as a monomer, divinylbenzene is used as a crosslinking agent, benzoyl peroxide is used as an initiator, and chloroacetylated poly(1,4-dimethyl 2,6-phenylene oxide) is used as a polymer reinforcing agent. After making a uniform solution according to the weight ratio of 90:8:0.02:2, coat the film on a clean and smooth glass plate; sulfonate the base film prepared by polymerization in the mixed acid of concentrated sulfuric acid and chlorosulfonic acid, and introduce sulfonic acid base, to obtain a sulfonic acid type homogeneous cation exchange membrane with a pore diameter of 50-100nm.

[0040] Put the above-mentioned cation exchange membrane into the electrodialyzer, take 50 mL of commercially available kudzu root extract (brown black clear liquid) and add it into the electrodialyzer, and take out the extract after reacting for 1 hour. The extracts befo...

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Abstract

The invention provides application of a functional polymer film in removing heavy metals in traditional Chinese medicine, which is characterized in that heavy metals in traditional Chinese medicine are removed through the effects of the absorption, the chelation, the ion exchange, the interception, and the like of the functional polymer film. The invention has the advantages that the functional polymer film is firstly applied to removing the heavy metals in traditional Chinese medicine, has favorable biocompatibility and biodegradability, is more environmental-friendly, and non-toxic and harmless for organisms; the pore size, the crosslinking degree and the active functional groups of the employed functional polymer film can be adjusted according to the specific property of traditional Chinese medicine to ensure that the heavy metals are removed effectively without damaging the active ingredients of traditional Chinese medicine; and the functional polymer film can be repeatedly used and has lower cost.

Description

technical field [0001] The invention relates to the field of research on the safety of traditional Chinese medicines, in particular to the application of functional polymer membranes in removing heavy metals in traditional Chinese medicines. Background technique [0002] my country is a big country in the production of herbal medicines, but due to the influence of heavy metal residues in traditional Chinese medicine and other reasons, the total export value of traditional Chinese medicine currently only accounts for about 1% of the world's sales of herbal medicines. Heavy metal residue pollution has become a "bottleneck" for Chinese medicine to go to the world. Therefore, the modernization of traditional Chinese medicine must solve the problem of excessive heavy metal content. [0003] At present, countries and regions that import Chinese medicinal materials and proprietary Chinese medicines have imposed strict requirements on the heavy metal content of Chinese medicinal mat...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B01D61/44B01D61/16B01D61/14B01D71/68B01D71/06B01J39/16B01J20/26A61K36/00
Inventor高源刘迎春邓斌
OwnerBEIJING OKEANOS TECH