Detachable hollow fiber film module

Abstract

The invention discloses a detachable hollow fiber film module which comprises an outer film cavity, a sample inlet, a sample outlet, a silicone rubber plug and a hollow fiber film tow bonded by a neutral silicone adhesive. The hollow fiber film tow comprises molecularly imprinted microspheres, has specific molecularly imprinted sites and is arranged in the outer film cavity of the film module. Oneend of the hollow fiber film tow is sealed by a the neutral silicone adhesive, and the other end of the hollow fiber film tow is guided into the silicone rubber plug. The sample inlet and the sampleoutlet are respectively formed in two ends of the film module, and a sample solution, an extracting solution and the like pass through the film module through the sample inlet and the sample outlet intwo ends of the film module, so that the service life of the hollow fiber film tow is prolonged, and film pollution is reduced; the rubber plug made of silicone is used, so that the hollow fiber filmtow of the outer film cavity is convenient to replace, the film module is repeatedly used, and the cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of hollow fiber membranes, in particular to a detachable molecular imprinted hollow fiber membrane module device. Background technique [0002] With the rapid development of modern analytical technology, time-consuming, laborious and inefficient traditional sample pretreatment methods have become the bottleneck restricting the development of the entire analytical chemistry. Therefore, the development of a fast, efficient, simple and green sample pretreatment technology is of great significance for eliminating matrix interference and improving method sensitivity and accuracy. Hollow fiber membrane extraction is a new type of sample pretreatment method that has developed rapidly in recent years. It combines membrane separation technology with liquid-liquid extraction and is an important part of the membrane separation process, also known as fixed membrane interface extraction. , has the advantages of simple e...

AI Technical Summary

Problems solved by technology

Combined with traditional hollow fiber membrane modules, during the casting, construction and use of the membrane modules, the hollow fiber membrane tows will be damaged and polluted, which will greatly reduce the service life of the hollow fiber membrane modules and increase the cost

For example, Chinese patent application number CN201120063028.1 relates to a device for analyzing organic pollutants in water that integrates sampling and pretreatment. Although it is used in the sample pretreatment process, its membrane components are fixed inside the sampling container. , has not yet solved the problem of replaceable inner hollow fiber membrane tow packing

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