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Power-on hollow fiber membrane extractor

A fiber membrane and extractor technology, which is applied in the field of instrument analysis, can solve the problems of the difference in the concentration of the solution inside and outside the hollow fiber membrane and consume a long time, and achieve the effects of shortening the extraction completion time, expanding the scope of application, and being easy to operate.

Inactive Publication Date: 2011-08-03
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional hollow fiber membrane extraction technology is based on the concentration difference between the inside and outside of the hollow fiber membrane, which is a passive diffusion, and it takes a long time to achieve extraction equilibrium.

Method used

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  • Power-on hollow fiber membrane extractor
  • Power-on hollow fiber membrane extractor

Examples

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Embodiment

[0019] figure 1 It is a schematic diagram of the structure of the powered hollow fiber membrane extractor; the powered hollow fiber membrane extractor includes a magnetic stirrer 1, a magnet 2, a sample bottle 3, a hollow fiber membrane 4, a sample bottle cap 5, a needle 6, and a Teflon tube 7 , a positive electrode 8, a negative electrode 9, and a high-voltage direct current power supply 10. The two ends of the hollow fiber membrane 4 are respectively connected to the needle 6 and the Teflon tube 7, the needle 6, the Teflon tube 7 and the negative electrode 9 are fixed on the sample bottle cap 5, and the positive electrode 8 passes through the small hole in the Teflon tube 7 Insert it into the hollow fiber membrane and fix it on the Teflon tube 7. The positive electrode 8 and the negative electrode 9 are respectively connected to a high voltage direct current power supply 10 . The hollow fiber membrane 4 and the magnet 2 are installed in the sample bottle 3, the sample bott...

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Abstract

The invention relates to a power-on hollow fiber membrane extractor, and belongs to the filed of the analysis of instruments. The power-on hollow fiber membrane extractor is a membrane extracting device of water solution which can quickly and effectively realize the extraction of inorganic anions in microsoluble organics by the action of an electrical field so as to convert the microsoluble organics into suitable ion chromatography for analysis, and mainly comprises a magnetic mixing device, a sample bottle, a magneton, a hollow fiber membrane, a sample bottle cap, a positive electrode, a negative electrode, a needle head, a teflon tube and a high-voltage direct current power supply. In the invention, the analysis and detection of the inorganic anions in the microsoluble organics through the ion chromatography is realized, and the application range of the ion chromatography is effectively widened; moreover, the power-on hollow fiber membrane extractor has the advantages of adopting simple device, needing low cost, and being simple and convenient to operate; the extraction balance can be reached after 5-10min; and the time of completing the extraction is greatly shortened.

Description

technical field [0001] The invention relates to an electrified hollow fiber membrane extractor, which belongs to the field of instrument analysis. More specifically, under the action of an electric field, the extraction of inorganic anions in slightly soluble organic matter can be quickly and effectively realized, thereby converting the slightly soluble organic matter into a suitable ion chromatography. Membrane extraction device for analysis of aqueous solutions. Background technique [0002] Ion chromatography is a conventional method for detecting trace anions at present. It has the advantages of fast analysis speed, high separation ability, simple method, and simultaneous analysis of multiple components. However, the sample to be analyzed by ion chromatography must be an aqueous solution, so it is usually used in Determination of inorganic anions in aqueous solution and water-soluble organic matter, rarely used to detect inorganic anions in slightly soluble organic mat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/00G01N30/06
Inventor 胡真真朱岩
Owner ZHEJIANG UNIV
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