Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Adsorption material for passive collection of amphetamine-type psychoactive drugs in sewage and preparation method thereof

A technology for amphetamines and adsorption materials, applied in separation methods, chemical instruments and methods, solid adsorbent liquid separation, etc., can solve the problems of analysis hysteresis, high cost, large influence of analysis results, etc., and achieves enhanced retention performance, enhanced Adsorption performance, effect of increasing adsorption performance

Active Publication Date: 2022-02-25
未名环境分子诊断(广东)有限公司
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has some disadvantages: first, the cost is high, and the collection and transportation process requires considerable manpower and material resources, and the cost is high; second, the timeliness is insufficient. When there are many sampling points in the field and the distance from the laboratory is long, a large number of samples cannot be collected immediately. Transported back to the laboratory, the analysis is lagging; the third is that it has a great impact on the analysis results. Since the field does not have the storage conditions for samples such as freezing and acidification, improper storage of samples will have a great impact on the experimental results.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Adsorption material for passive collection of amphetamine-type psychoactive drugs in sewage and preparation method thereof
  • Adsorption material for passive collection of amphetamine-type psychoactive drugs in sewage and preparation method thereof
  • Adsorption material for passive collection of amphetamine-type psychoactive drugs in sewage and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1) Perform silica gel purification

[0049] Choose a specific surface area of ​​300m 2 / g high-purity coarse-pore microsphere silica gel, pass through a 100-mesh sieve, weigh 10g, put it into filter paper, and put it into a Soxhlet extraction device; add 100mL of dichloromethane into the reactor, place it in a constant temperature water bath, and extract The device is fixed on the upper end of the flask, and the junction is sealed with a parafilm. The temperature of the thermostatic water bath is controlled at 50° C., and the silica gel is extracted for 12 hours. The extracted silica gel was placed in a blast drying oven, set at a temperature of 80 °C, and dried for 3 h.

[0050] 2) Modification of silica gel

[0051] Put the dried silica gel in a 500mL Erlenmeyer flask, slowly add 300mL of divinylbenzene solution with a mass fraction of 55%, put it in a constant temperature shaking shaker, and vibrate at a speed of 500r / min for 8h at 25°C , to obtain a mixture of si...

Embodiment 2

[0055] 1) Perform silica gel purification

[0056] Choose a specific surface area of ​​400m 2 / g high-purity coarse-pore microsphere silica gel, pass through a 100-mesh sieve, weigh 10g, put it into filter paper, and put it into a Soxhlet extraction device; add 100mL of dichloromethane into the reactor, place it in a constant temperature water bath, and extract The device is fixed on the upper end of the flask, and the junction is sealed with a parafilm. The temperature of the thermostatic water bath is controlled at 50° C., and the silica gel is extracted for 12 hours. The extracted silica gel was placed in a blast drying oven, set at a temperature of 80 °C, and dried for 3 h.

[0057] 2) Modification of silica gel

[0058] Put the dried silica gel in a 500mL Erlenmeyer flask, slowly add 300mL of divinylbenzene solution with a mass fraction of 55%, put it in a constant temperature shaking shaker, and vibrate at a speed of 500r / min for 8h at 25°C , to prepare a mixture of s...

Embodiment 3

[0062] 1) Perform silica gel purification

[0063] Choose a specific surface area of ​​350m 2 / g high-purity coarse-pore microsphere silica gel, through a 100-mesh sieve, the silica gel to be purified is as figure 1 As shown, weigh 10g, put it into filter paper, and load it into a Soxhlet extraction device. Add 100mL dichloromethane into the reactor, place it in a constant temperature water bath, fix the Soxhlet extraction device on the upper end of the flask, seal the connection with a parafilm, control the temperature of the constant temperature water bath at 50°C, and extract the silica gel for 12h. The extracted silica gel was placed in a blast drying oven, set at a temperature of 80 °C, and dried for 3 h.

[0064] 2) Modification of silica gel

[0065] Put the dried silica gel in a 500mL Erlenmeyer flask, slowly add 300mL of divinylbenzene solution with a mass fraction of 55%, put it in a constant temperature shaking shaker, and vibrate at a speed of 500r / min for 8h at...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Specific surface areaaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention relates to an adsorption material for passive collection of amphetamine psychoactive drugs in sewage and a preparation method thereof. The adsorption material can react with the amine groups of amphetamines in bromination reaction. The adsorption material is prepared by chemically modifying silica gel with potassium bromide solution; the chemical modification method is: mix potassium bromide solution with silica gel according to After proportional mixing, constant temperature oscillation reaction is carried out. After the reaction, the silica gel is collected, washed and dried. The invention adopts divinylbenzene and potassium bromide to jointly modify silica gel for the first time to increase the adsorption performance of amphetamines. Specifically, the amine group (‑NH 2 ) can undergo amine bromination reaction with bromine. By loading bromine, the synthesized adsorption material has specific chemical adsorption for amphetamine substances, and is suitable for the passive sampling requirements of amphetamine psychoactive drugs in sewage.

Description

technical field [0001] The invention belongs to the technical field of adsorption materials, in particular to an adsorption material used for passive collection of amphetamine psychoactive drugs in sewage and a preparation method thereof. Background technique [0002] Psychoactive drugs refer to substances that can obviously affect people's mental activities and lead to addiction after inhalation and use from outside the human body. They are compounds that have a strong excitatory or inhibitory effect on the human central nervous system, mainly including amphetamines, opioids , marijuana, etc. A small amount of these drugs can play anesthesia and analgesic effects, but a large amount of use will seriously damage people's physical and mental health, and at the same time cause a series of social problems, such as rising crime rates. [0003] At present, psychoactive drugs (especially amphetamines) are widely abused. As excrement enters sewage, these substances accumulate in t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B01J20/22B01J20/30B01D15/38G01N1/20
CPCB01J20/046B01J20/103B01J20/22B01D15/3857G01N1/20
Inventor 张巍李喜青
Owner 未名环境分子诊断(广东)有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com