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Flexible quartz glass photoconductive capillary tube for producing chromatographic column

A quartz glass and capillary technology, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as several hours, ten hours, or even longer time, limited development, and long analysis time, etc. Promote development, improve column efficiency, and broaden the effect of application fields

Active Publication Date: 2015-11-25
辽宁玮尔量子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the analysis and separation process of the flexible fused silica glass capillary column takes a long time. Usually, it takes about several hours, ten hours or even longer to analyze and separate a sample, which limits the further development of this technology.

Method used

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  • Flexible quartz glass photoconductive capillary tube for producing chromatographic column
  • Flexible quartz glass photoconductive capillary tube for producing chromatographic column
  • Flexible quartz glass photoconductive capillary tube for producing chromatographic column

Examples

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Effect test

Embodiment 1

[0021] Example 1, such as figure 1 , figure 2 , image 3 with Figure 4 as shown in:

[0022] In order to realize the object of the present invention, it is necessary to increase the inner surface area of ​​the capillary, therefore, the present invention adopts the technical solution of the porous capillary. In this embodiment, the present invention includes a porous capillary 1, a core 2 located at the center of the capillary, and a protective layer 3 disposed outside the porous capillary. The core 2 in this embodiment is a light guide core. The porous capillary 1 has a plurality of through holes 11 diverging from the center of the light guide core, and each through hole constitutes a unit capillary. Compared with the traditional flexible fused silica glass capillary, the porous structure of the present invention greatly increases the inner surface area of ​​the capillary while maintaining the same column volume, greatly increases the theoretical plate number of the chro...

Embodiment 2

[0037] Example 2, such as Figure 5 with Image 6 as shown in:

[0038] In this embodiment, a capillary with a four-hole structure is adopted, such as Figure 5 Known in. In this embodiment, the helical rotation around the axis of the capillary is to twist back and forth, extend and rotate at a specified intercept. That is, specify a length, and then use the specified length as a unit to helically rotate positively around the axis along the axis of the capillary, and use negative rotation for the other length, so that it twists and turns back and forth, extending and rotating, such as Image 6 shown in .

[0039] In this embodiment, the helical sector unit tube structure is reciprocated and twisted regularly according to a certain intercept to force the mobile phase to reciprocate and move forward around the axis. The centrifugal force of the rotation weakens the eddy current diffusion caused by the friction between the mobile phase and the inner wall, and the fan-shaped s...

Embodiment 3

[0041] Example 3, such as Figure 7 as shown in:

[0042] In this embodiment, a 12-hole capillary is used.

[0043] Other parts of this embodiment are identical to Embodiment 1.

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Abstract

The invention discloses a flexible quartz glass photoconductive capillary tube for producing a chromatographic column, and belongs to the technical field of chromatographic analysis. The flexible quartz glass photoconductive capillary tube is characterized by comprising a porous capillary tube, a tube core in the middle of the capillary tube and a protection layer on the outer portion of the capillary tube; a plurality of through holes are formed dispersedly in the porous capillary tube by taking the tube core as the center, and each through hole forms a unit capillary tube; the tube core is photoconductive. The flexible quartz glass photoconductive capillary tube has all the advantages of conventional flexible fused quartz glass photoconductive capillary tubes; meanwhile, the internal surface area of the flexible quartz glass photoconductive capillary tube is multiple times to dozens of times of that of the conventional flexible fused quartz glass photoconductive capillary tubes on the premise of same tube diameters, and various substances in the chromatographic column can be separated or decomposed quickly by injecting lasers or light beams with different wavelengths from the photoconductive tube core during working of the chromatographic column, so that column efficiency is improved, analysis / separation time is shortened, the application field of chromatographic technology is further widened, and the chromatographic technology of capillary tubes is promoted.

Description

Technical field: [0001] The invention relates to a flexible quartz glass photoconductive capillary for making a chromatographic column, which belongs to the technical field of chromatographic analysis, in particular to a flexible quartz glass photoconductive capillary for making a main body of a capillary chromatographic column. Background technique: [0002] Fused silica glass capillary is the main body of making capillary column. Capillary chromatographic column is the core component of contemporary chromatographic analysis and separation technology. Chromatography technology originated at the beginning of the 20th century and developed rapidly in the middle of the 20th century. Especially in 1979, Mr. Dandeneau invented the fused silica glass flexible capillary column, creating a new era of capillary chromatography analysis and separation technology, and becoming a contemporary precision technology. The most important means of chemical analysis and separation of various ...

Claims

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Application Information

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IPC IPC(8): G01N30/60
Inventor 李艾琳张斌
Owner 辽宁玮尔量子科技有限公司