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

Preparation method of eucalyptus-based porous carbon-silicon dioxide solid-phase extraction column

A technology of solid-phase extraction column and silica, which is applied in the direction of chemical instruments and methods, separation methods, and other chemical processes, can solve the problems of complex preparation and high cost, and achieve simple preparation process, low cost, and simple experimental equipment Effect

Inactive Publication Date: 2015-06-03
YULIN NORMAL UNIVERSITY
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of them have the disadvantages of complicated preparation and high cost.

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
  • Preparation method of eucalyptus-based porous carbon-silicon dioxide solid-phase extraction column
  • Preparation method of eucalyptus-based porous carbon-silicon dioxide solid-phase extraction column

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The specific steps of the preparation method of the eucalyptus-based porous carbon-silica solid phase extraction column of the present invention are as follows:

[0032] (1) Preparation of eucalyptus-based porous carbon:

[0033] Take eucalyptus stalk as raw material, add zinc chloride for pretreatment, activate for 1 hour under hydrothermal conditions, wash, dry, and crush to obtain pre-activated eucalyptus stalk powder; add sodium hydroxide to the pre-activated eucalyptus stalk powder , Mix thoroughly to form a column; put the eucalyptus powder column into an atmosphere furnace, protected by nitrogen, and burn it at high temperature; naturally cool, take it out, wash off the sodium hydroxide with hydrochloric acid, and dry to obtain eucalyptus-based porous carbon ;

[0034] (2) Activation of Eucalyptus-based porous carbon:

[0035] Add the mixed acid to the eucalyptus-based porous carbon prepared in step (1), activate it, increase the carboxyl and hydroxyl groups on the surf...

Embodiment 2

[0043] The specific steps of the method for preparing the eucalyptus-based porous carbon-silica solid phase extraction column of the present invention are as follows:

[0044] (1) Preparation of Eucalyptus-based porous carbon:

[0045] Take eucalyptus stem as raw material, add zinc chloride for pretreatment, activate under hydrothermal conditions for 3 hours, wash, dry, and crush to obtain pre-activated eucalyptus stem powder; add sodium hydroxide to the pre-activated eucalyptus stem powder , Mix thoroughly to form a column; put the eucalyptus powder column into an atmosphere furnace, protected by nitrogen, and burn it at high temperature; naturally cool, take it out, wash off the sodium hydroxide with hydrochloric acid, and dry to obtain eucalyptus-based porous carbon ;

[0046] (2) Activation of Eucalyptus-based porous carbon:

[0047] Add mixed acid to the eucalyptus-based porous carbon prepared in step (1), activate it, increase the carboxyl and hydroxyl groups on the surface of ...

Embodiment 3

[0055] The specific steps of the preparation method of the eucalyptus-based porous carbon-silica solid phase extraction column of the present invention are as follows:

[0056] (1) Preparation of eucalyptus-based porous carbon:

[0057] Take eucalyptus stalk as raw material, add zinc chloride for pretreatment, activate for 2 hours under hydrothermal conditions, wash, dry, and crush to obtain pre-activated eucalyptus stalk powder; add sodium hydroxide to the pre-activated eucalyptus stalk powder , Mix thoroughly to form a column; put the eucalyptus powder column into an atmosphere furnace, protected by nitrogen, and burn it at high temperature; naturally cool, take it out, wash off the sodium hydroxide with hydrochloric acid, and dry to obtain eucalyptus-based porous carbon ;

[0058] (2) Activation of Eucalyptus-based porous carbon:

[0059] Add mixed acid to the eucalyptus-based porous carbon prepared in step (1), activate it, increase the carboxyl and hydroxyl groups on the surface...

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
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of a eucalyptus-based porous carbon-silicon dioxide solid-phase extraction column. The method comprises the following steps: (1) adding zinc chloride to a eucalyptus rod, activating, washing, drying and grinding under a hydrothermal condition, adding sodium hydroxide, fully mixing evenly, forming a column form, putting into an atmosphere furnace, protecting with nitrogen, firing at high temperature, naturally cooling, taking out, washing off sodium hydroxide with hydrochloric acid, and drying to obtain eucalyptus-based porous carbon; (2) adding mixed acid to the porous carbon, activating, washing off excessive mixed acid and drying for later use; and (3) mixing the porous carbon with silicon dioxide evenly, packing to a polyethylene solid-phase extraction pipe, adding to a sieve plate, and compacting, so as to prepare the eucalyptus-based porous carbon-silicon dioxide solid-phase extraction column. The eucalyptus-based porous carbon-silicon dioxide solid-phase extraction column is low in cost, available, convenient to operate, simple in technological process, good in repeatability, small in pollution and the like, and has strong practicability.

Description

Technical field [0001] The invention relates to the technical field of preparation of a solid phase extraction column, in particular to a preparation method of a eucalyptus-based porous carbon-silica solid phase extraction column. Background technique [0002] Most of the packings of solid phase extraction columns currently used are: silica gel packing, polymer packing, alumina, activated carbon, diatomaceous earth, etc. But most of them have the disadvantages of complicated preparation and high cost. [0003] With the reduction of mineral resources such as petroleum and coal, the utilization of biomass resources has received more and more attention. Under the guidance of national policies, our district has vigorously planted eucalyptus trees in the past two decades, which have grown rapidly and are rich in resources. It is a kind of economic forest. According to incomplete statistics, the area of ​​eucalyptus in the whole region reached more than 1.8 million ha in 2011. 2 , Acco...

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
Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/283B01J20/30B01D15/22
Inventor 罗志辉何军刘括梁春杰韦庆敏
Owner YULIN NORMAL UNIVERSITY
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