Controllable solid phase micro-extraction handle

A controllable, extraction technology, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of limited types of solid-phase microextraction handles and high prices, and achieve improved performance and utilization, low cost, and easy replacement. Effect

Pending Publication Date: 2018-06-26
GANSU INST OF POLITICAL SCI & LAW
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to the survey, the types of solid-phase microextraction handles currently sold are very limited. Not only are they expensi

Method used

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  • Controllable solid phase micro-extraction handle
  • Controllable solid phase micro-extraction handle
  • Controllable solid phase micro-extraction handle

Examples

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Example Embodiment

[0029] Such as figure 1 As shown, the controllable solid phase micro extraction handle includes a handle barrel 1, a metal sleeve 7 and an extraction probe 8 with stainless steel wire or silicon oxide as a support material. The handle barrel 1 is provided with a positioning ring 3, and is embedded with a push button 2 arranged on a zigzag guide rail 5; the lower end of the handle barrel 1 is provided with a metal sleeve fixing bracket 6, the metal sleeve fixing bracket 6 and the metal sleeve 7 The bottom end of the push button 2 is connected to the metal sleeve fixing bracket 6; the extraction probe 8 passes through the metal sleeve 7 and the metal sleeve fixing bracket 6 in turn, and is connected to the handle barrel 1 through the push button 2.

[0030] Among them: the bottom end of the push button 2 is connected to the metal sleeve fixing bracket 6 through the spring 4.

[0031] The handle barrel 1 includes an upper half 11 and a lower half 12 connected together (see figure 2 )...

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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...

Claims

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Application Information

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IPC IPC(8): G01N1/28G01N30/06
CPCG01N1/28G01N30/06G01N2030/062
Inventor 宋爱英魏琳琳贾宗平石恩林曾俊菱
Owner GANSU INST OF POLITICAL SCI & LAW
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