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Nanofiber adsorption based array solid-phase extraction device

An extraction device and nanofiber technology, applied in the field of extraction devices, can solve the problems of high cost, complicated and cumbersome operation, etc., and achieve the effects of low cost, convenient installation and use, and simple and easy operation.

Inactive Publication Date: 2009-12-02
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can overcome the shortcomings of expensive instruments and complicated operations in the prior art, and has low cost, simple structure, convenient installation and use, labor saving, and can process samples in batches

Method used

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  • Nanofiber adsorption based array solid-phase extraction device

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Embodiment Construction

[0010] The array solid-phase extraction device based on nanofiber adsorption of the present invention is a sample pretreatment device. The device consists of three parts: a syringe, a support frame and a steel clip. The support frame is designed as a rectangular or square frame structure. 5 floors, the bottom is a base made of stainless steel, on the base there is a waste liquid tank that can be easily taken out, on the waste liquid tank is a detachable receiving tube support, and then up is a fixed solid-phase extraction column support, and then up It is a one-layer fixed intubation frame, and one end of the intubation frame is provided with a connecting shaft, and a stainless steel plate that can slide up and down and rotate left and right is set on the connecting shaft as a pressing plate. The whole device can be designed as a porous array (horizontally and vertically extending, the schematic diagram here is a single row of 6 holes).

[0011] Taking the determination of dia...

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Abstract

A nanofiber adsorption based array solid-phase extraction device relates to an extraction device applied to quick enrichment and purification pretreatment of micro and trace samples of biomedical complicated samples, environmental samples, toxicants and pollutants. The nanofiber adsorption based array solid-phase extraction device comprises five layers from bottom to top; the lowermost is a base on which a waste liquid cell (9) capable of being conveniently taken out is arranged; a receiving tube support (8) is arranged above the waste liquid cell (9); a fixed solid-phase extraction small-column support (7) is arranged above the receiving tube support (8); a layer of fixed tube inserting rack (6) is arranged above the fixed solid-phase extraction small-column support (7); one end of the tube inserting rack (6) is provided with a connecting shaft (4) which is sleeved with a pressplate (5) capable of sliding vertically and rotating laterally; an injector (3) is fixed on the tube inserting rack (6); a push rod end of the injector (3) is connected with the pressplate (5); the front end of the injector (3) is provided with an extraction small column (10); a small test tube (11) is positioned on the receiving tube support (8); and the front end of the extraction small column (10) passes through the solid-phase extraction small-column support (7) and is positioned at an opening end of the small test tube (11).

Description

technical field [0001] The invention relates to an extraction device that uses a nanofiber solid adsorbent to enrich and extract samples and perform sample pretreatment, especially a trace and trace sample that is applied to complex medical and biological samples, environmental samples, poisons and pollutants Extraction device for rapid enrichment and purification pretreatment. 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, statistical data show that 60% or more of the analysis operation time is spent on sample pretreatment, and most of the measurement errors come from the sample pretreatment process. Therefore, in recent years, the research on sample pretreatment methods and the development of related devices and instr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D15/00B01L11/00B01L99/00
Inventor 康学军陈利琴顾忠泽陆祖宏
Owner SOUTHEAST UNIV
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