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Double-cavity dynamic compression column for chromatographic separation

A chromatographic, dynamic compression technology, applied in the field of compression columns, can solve problems such as high price

Active Publication Date: 2012-12-26
江阴市金确分离技术有限公司
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] Due to the change of mobile phase during chromatographic separation, the volume of some fillers also changes constantly. Therefore, a dynamic compression column is required so that the column head can change corresponding to the volume change of the filler and keep it close to the filler surface. Currently, large dynamic compression columns With hydraulic system, the price is particularly expensive

Method used

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  • Double-cavity dynamic compression column for chromatographic separation

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Embodiment Construction

[0014] Such as figure 1 As shown, the present invention has a cylindrical column body 1, and the column head 2 is sleeved in the column body 1. The column head 2 divides the inner cavity of the column body 1 into an upper column cavity 11 and a lower column cavity 12, and the upper column cavity 11 is provided with The feed port 13, the vacuum port 14 and the air inlet 18, the feed port 13 and the column head 2 are connected by a flexible pipe 15 (connected with the prior art structure), and the lower column chamber 12 is provided with a filling port 16 and a liquid outlet Port 17, the lower column cavity 12 is filled with filler 3.

[0015] A seal is provided between the column head 2 and the inner wall of the cylinder 1, and the seal includes a sealing ring 41 made of elastic material against the inner wall of the cylinder 1, an annular groove is arranged on the sealing ring 41, and the content of the groove is There is an annular sealing compensator 42 made of elastic mate...

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Abstract

The invention provides a double-cavity dynamic compression column for chromatographic separation. The double-cavity dynamic compression column is characterized by comprising a column body, wherein a column head is sleeved in the column body, a seal is arranged between the column head and the inner wall of the column body; the column head partitions the column body to be an upper column cavity and a lower column cavity; the upper column cavity is provided with a feeding opening, an evacuating opening and an air inlet, wherein the feeding opening is connected with the column head by a pipeline; the lower column cavity is provided with a packing inlet and a liquid outlet, wherein the lower column cavity is full of packing. When the double-cavity dynamic compression column is used in a chromatographic separation process, the column head can dynamically raise and fall along with the shrinkage and expansion of the packing so as to cling to a packing level; and the column body and the column head can be manufactured to be great in diameter with acceptable cost.

Description

technical field [0001] The invention belongs to a device for a chromatographic separation instrument, in particular to a compression column used for a chromatographic analysis instrument. Background technique [0002] Chromatographic separation is widely used in the separation of monomers such as biology, chemical industry, medicine, and food additives. [0003] With the advancement of science and technology, the packing materials for chromatography columns are constantly updated, and the requirements for the cost performance and practicability of chromatography columns are constantly updated. [0004] Due to the change of mobile phase during chromatographic separation, the volume of some fillers also changes constantly. Therefore, a dynamic compression column is required so that the column head can change corresponding to the volume change of the filler and keep it close to the filler surface. Currently, large dynamic compression columns With hydraulic systems, the price i...

Claims

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Application Information

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IPC IPC(8): B01D15/22
Inventor 於红军
Owner 江阴市金确分离技术有限公司
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