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Method and device for preparing carbon nano-fiber/carbon fiber solid-phase micro-extraction coatings

A technology of carbon nanofibers and extraction devices, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of increasing active sites, low concentration and difficult real-time detection, etc., and achieve the effect of increasing active sites and increasing the enrichment rate

Active Publication Date: 2017-01-25
YANBIAN UNIV
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  • Abstract
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Problems solved by technology

By modifying carbon nanofibers on carbon fibers, a three-dimensional three-dimensional structure is formed to effectively increase the active sites, thereby increasing the enrichment rate, and solving the problem of low concentration that is difficult to achieve real-time detection

Method used

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  • Method and device for preparing carbon nano-fiber/carbon fiber solid-phase micro-extraction coatings
  • Method and device for preparing carbon nano-fiber/carbon fiber solid-phase micro-extraction coatings

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Embodiment Construction

[0036] Specific embodiments of the present invention will be described in detail below. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0037] The invention provides a preparation method of carbon nanofiber / carbon fiber solid-phase microextraction material, the method comprising the following steps:

[0038] (1) Desizing the carbon fiber: remove the sizing agent on the surface of the carbon fiber, then dry it in an oven at 35-50°C for 15-30 minutes, and then store it in a desiccator;

[0039] (2) Take out the pure carbon fibers (CFs) after desizing from the desiccator, and rinse with methanol and water to remove surface impurities. Then put it in an oven at 35-50°C and dry it for 15-30min;

[0040] (3) Acid treatment of the carbon fiber surface: the dried carbon fiber was acid-treated with a nitric acid / sulfuric acid solution with a volum...

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Abstract

The invention discloses a carbon nano-fiber / carbon fiber solid-phase micro-extraction material, a method for preparing the same and a method and a device for manufacturing carbon nano-fiber / carbon fiber solid-phase micro-extraction devices. The carbon nano-fiber / carbon fiber solid-phase micro-extraction material, the methods and the device have the advantages that carbon nano-fibers / carbon fibers can be prepared, and chromatographic analysis processes are provided for detecting plant hormones by means of infusion and micro-enrichment in real time; the carbon nano-fibers are modified on the carbon fibers, so that spatial stereoscopic three-dimensional structures can be formed, active sites can be effectively increased, the enrichment ratios can be increased, and the difficult problem of difficulty in detecting plant hormones in real time due to the low concentration of the plant hormones can be solved.

Description

technical field [0001] The invention relates to a carbon nanofiber / carbon fiber solid phase microextraction material and a preparation method thereof, as well as a carbon nanofiber / carbon fiber solid phase microextraction device manufacturing method and the device. Background technique [0002] Phytohormones are a series of trace organic small molecular compounds synthesized by plants themselves. They are sensitive to high temperature, strong light, and oxygen. They can trigger physiological reactions at extremely low levels, and their physiological effects are very complex and diverse. Given that phytohormones play a crucial role in regulating every physiological process of plants, how to accurately and quickly analyze the content of phytohormones in various organs and their cellular levels has become a topic of the times, especially in the field of in situ analysis in vivo. Most of the extraction solvents of plant hormones use 80% cold methanol (MeOH), and some people use ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/06G01N30/02
CPCG01N30/02G01N30/06G01N30/08G01N2030/062
Inventor 李东浩邹依霖孟龙月王李原
Owner YANBIAN UNIV
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