Controllable solid phase micro-extraction handle

Abstract

The invention relates to a controllable solid phase micro-extraction handle, which comprises a handle cylinder, a metal bushing and an extraction probe using a stainless steel wire or silicon oxide asa supporting material, wherein the handle cylinder is provided with a positioning ring and is embedded with a push button arranged on a zigzag guide rail, the lower end of the handle cylinder is provided with a metal bushing fixation bracket, the metal bushing fixation bracket is connected to the metal bushing, the bottom end of the push button is connected to the metal bushing fixation bracket,and the extraction probe sequentially penetrates through the metal bushing and the metal bushing fixation bracket, and is connected to the handle cylinder through the push button. According to the present invention, the controllable solid phase micro-extraction handle has advantages of low cost, convenient carrying, durability, easy regulation and easy extraction probe replacement, and can providethe technical support for the further expansion of the wide application of SPME technology.

Description

technical field [0001] The invention relates to the technical field of sample pretreatment, in particular to a controllable solid phase microextraction handle. Background technique [0002] The traditional sample pretreatment technology represented by liquid-liquid and solid-phase extraction not only uses a large amount of organic solvents, requires a large amount of samples, is time-consuming and labor-intensive, and is easy to cause damage to the health of operators and the environment, but also because the concentration of analytes is often relatively high. Low, its stability will change with time and space, and the cumbersome processing process will make the components to be tested easily lost, thus bringing difficulties to analysis and detection. In order to overcome the above shortcomings of traditional sample pretreatment techniques, researchers have invented miniaturized new sample pretreatment techniques, mainly including liquid phase microextraction and solid phase...

AI Technical Summary

Problems solved by technology

According to the survey, the types of solid-phase microextraction handles currently sold are very limited. Not only are they expensive, they can only use the special extraction probes of the production company, and their structures still have a lot to be improved.

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