Method for removing traditional Chinese medicine heavy metal by using combination of chelate resin and chitosan

A technology for chelating resins and heavy metals, applied in separation methods, chemical instruments and methods, solid solvent extraction, etc., can solve the problems of large adsorption of active ingredients, large difference in adsorption selectivity between heavy metals and active ingredients, etc.

Active Publication Date: 2014-01-15
TIANJIN TASLY MORDEN TCM RESOURCES
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Problems solved by technology

[0011] The above patents have explained the heavy metal removal technology of traditional Chinese medicine, which is mainly based on the mature technology of the electroplating industry, the electronics industry, and the sewage and wastewater treatment industries. The removal technologies that have been industrialized include heavy metal precipitant method, chelating resin adsorption method, Ion exchange resin method, etc., while chitosan adsorption method, membrane separation method and supercritical extraction method have not been applied to production. Combined with the actual industrial application, the current research in the field of traditional Chinese medicine is mostly focused on chelating resin, chitosan In other directions, in view of the current technical performance of chelating resins and chitosan, the adsorption selectivity of heavy metals and active ingredients is often quite different, or it only has a good removal and control effect on one or a few heavy metal elements, or The balanced removal effect of heavy metals is very good, but the adsorption of active ingredients is also relatively large

Method used

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  • Method for removing traditional Chinese medicine heavy metal by using combination of chelate resin and chitosan
  • Method for removing traditional Chinese medicine heavy metal by using combination of chelate resin and chitosan
  • Method for removing traditional Chinese medicine heavy metal by using combination of chelate resin and chitosan

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Effect test

Embodiment 1

[0041] Salvia miltiorrhiza 900g, Panax notoginseng 176g, extract according to the extraction process of compound Danshen dripping pill extract: water extraction 2 times, concentration, 70% alcohol precipitation, separate the alcohol precipitation supernatant, and divide the supernatant into two parts, One part was used as a control, and the other supernatant was added with standard solutions of lead, cadmium, mercury, copper and arsenic to carry out heavy metal excessive modeling, and then slowly passed through the pretreated D405 (Jiangsu Suqing Produced by the Group) (the volume ratio of resin dosage to extraction solution is 1:50) chelating resin, the effluent flows into chitosan with 0.5% total liquid volume (produced by Shandong Aokang, chitosan is calculated by weight, liquid is calculated by volume Calculate, the ratio of the two is the weight-to-volume ratio) in a container, stir continuously until the sample is loaded, filter the effluent to remove chitosan, concentrat...

Embodiment 2

[0048] Anti-infection oral liquid extract:

[0049] Honeysuckle 1050g, Radix Paeoniae Rubra 1050g, Mianma Guanzhong 350g are decocted in water twice, each time for 1.5 hours, filtered, the filtrates are combined and concentrated to 1.13~1.20 (80°C), add alcohol to 50% alcohol content, stir well, Leave it overnight, take the supernatant and add standard solutions of lead, cadmium, mercury, copper, and arsenic to make a model with 10 times the heavy metal exceeding the standard in medicinal materials, and then slowly pass through the pretreated D405 (produced by Jiangsu Suqing Group) ) (resin dosage and extraction liquid volume ratio is 1:50) chelating resin, the effluent flows into chitosan with 0.1% total liquid volume (produced by Shandong Aokang, chitosan is calculated by weight, liquid is calculated by volume, two The ratio is the weight to volume ratio) in a container, stirring continuously until the sample loading is completed, the effluent is filtered to remove chitosan,...

Embodiment 3

[0053] Hawthorn Leaf Extract:

[0054] Take 1000g of hawthorn leaves, soak in 6 times the amount of ethanol for 48 hours, carry out percolation, collect the percolation liquid, add lead, cadmium, mercury, copper, arsenic standard solution to make the model of heavy metal exceeding 5 times in medicinal materials, and then use 3~4BV / h Slowly pass through the pretreated D405 (produced by Jiangsu Suqing Group) (the volume ratio of resin dosage and extraction liquid is 1:40) chelating resin, and the effluent flows into chitosan (Shandong Aokang) with 10% total liquid volume Production, chitosan is calculated by weight, liquid is calculated by volume, and the ratio between the two is the weight-to-volume ratio) container, continuously stirred until the sample is loaded, the effluent is filtered to remove chitosan, concentrated, and the extract is used Concentrated nitric acid was used for microwave digestion, and the detection was carried out according to the atomic absorption spect...

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Abstract

The invention relates to a method for removing traditional Chinese medicine heavy metal by using a combination of chelate resin and chitosan. The method comprises the steps that: step 1, traditional Chinese medicine materials are subjected to an extraction treatment by using a solvent, such that a traditional Chinese medicine extract with alcohol as a dispersing system is obtained; step 2, the traditional Chinese medicine extract liquid is subjected to two treatments of chelate resin dynamic absorption and chitosan static absorption, wherein the treatment sequence is not fixed. With the method, the heavy metal concentration in the heavy metal extract is substantially reduced.

Description

Technical field: [0001] The invention belongs to the field of traditional Chinese medicine, and in particular relates to the use of resin to remove harmful heavy metals (lead, cadmium, mercury, copper, arsenic) from extracts of Chinese medicine (Chinese medicine extraction medicine, Chinese patent medicine, Chinese medicine formula granules), health care products and health food uses and methods. technical background: [0002] In recent years, heavy metal pollution has been serious. Heavy metals have polluted at least 10% of China's cultivated land (three wastes, pesticides, and chemical fertilizers), and 40% of agricultural land in the Pearl River Delta has exceeded the standard. Soil pollution leads to indirect pollution of Chinese medicinal materials. After these heavy metal elements are absorbed by the human body, when they accumulate to a certain amount, they can cause immune system disorders, nerve, endocrine, liver, and kidney function damage, and cause a series of se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D15/00B01D11/02
Inventor 刘岩范开郝士海黄松贾佳丽赵国磊于春阳
Owner TIANJIN TASLY MORDEN TCM RESOURCES
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