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

Solid phase micro-extraction device based on nanometer fiber

A nanofiber, extractor technology, applied in solvent extraction, chemical instruments and methods, separation methods, etc., can solve the problems of limited application scope, low enrichment efficiency, long processing time, etc., and achieves wide application scope and large extraction capacity. , the effect of easy operation

Active Publication Date: 2007-08-08
SOUTHEAST UNIV
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Technical problem: the purpose of the present invention is to provide a nanofiber-based solid-phase microextractor, which can overcome the single adsorbent, low enrichment efficiency, long processing time, limited application range, and still need in the prior art. Disadvantages such as a considerable volume of organic solvent, the need to dry the solvent step, and low 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
  • Solid phase micro-extraction device based on nanometer fiber

Examples

Experimental program
Comparison scheme
Effect test

example

[0021] 1. Take a solid-phase microextraction column filled with 2 mg of 800-1000nm polystyrene fiber, draw 200 μl of 10 μg / ml trazodone (an antidepressant) aqueous solution (prepared in pH 7.4 phosphate buffer) with a syringe, and inject tube; then draw 200 μl pH7.4 phosphate buffer solution to inject and rinse the extraction tube; draw 50 μl methanol to inject and elute through the extraction tube; inject the eluate into the high-performance liquid chromatography for detection, and calculate the extraction recovery rate. Results The extraction recovery rate reached 99%.

[0022] 2. Conduct the experiment with the plasma sample that is recognized as the most complicated pretreatment, prepare 10 μg / ml trazodone plasma spiked sample, add the same amount of pH12 phosphate buffer to mix, inject a total of 200 μl into the extraction tube, and then use pH12 phosphate buffer 200 μl of solution was injected to rinse the extraction tube, and 50 μl of methanol was injected into the elue...

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

No PUM Login to View More

Abstract

The invention relates the device which utilizes solid adsorbent to enrich, extract, and pretreat samples on the base of nanometer fabric solid phase extractor. The device comprises 1-injector, 2-conical extraction pipe, and 3-nanometer fabric filtering medium. The head of 1 and the back opening of 2 can be connected and separated. In the 2 there are 3, and the head of 2 there is an eyelet. On the head of 2 there is 4-sampling needle which can be connected and separated with the head of 2. The invention possesses the advantages of short handling time, little dissolvent and wide application area.

Description

technical field [0001] The invention relates to a device for enriching and extracting samples by using a solid adsorbent, performing sample pretreatment and sample introduction, especially a device for micro and trace samples applied to complicated medical and biological samples, environmental samples, poisons and pollutants The sampling device for rapid enrichment and pre-purification treatment. Background technique [0002] Modern analysis technology is developing towards fast, micro, trace, multi-component, and high selectivity. Various new types of precision instruments emerge in an endless stream, and higher and higher requirements are put forward for the sample pretreatment process. However, 60% or more of the analysis operation time is spent on sample pretreatment, and most of the experimental errors come from the sample pretreatment process. Solid phase extraction (SPE) is an effective means of separation and purification of trace or trace substances. Most of the cu...

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 Patents(China)
IPC IPC(8): B01D11/00
Inventor 顾忠泽康学军
Owner SOUTHEAST UNIV
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