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Fast pneumatic system for preparing columnar chromatograph and its utilization

A chromatographic system and preparative column technology, which is applied in the field of new pneumatic rapid preparative column chromatographic system, can solve problems such as inability to operate continuously, and achieve the effects of continuous operation performance, simple device, and high safety

Inactive Publication Date: 2007-01-17
天津奥秘科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through technical improvement and unique flow path design, the functions of filling and elution of mobile phase solvents are effectively integrated, which solves the defect that the existing pneumatic system cannot operate continuously

Method used

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  • Fast pneumatic system for preparing columnar chromatograph and its utilization
  • Fast pneumatic system for preparing columnar chromatograph and its utilization
  • Fast pneumatic system for preparing columnar chromatograph and its utilization

Examples

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Embodiment Construction

[0032] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] The ten-way valve B is respectively connected with an open solvent tank D and two closed solvent tanks E and F, a vacuum pump C, a two-way valve G, a release valve A, and the release valve A is connected to the compressed air inlet through pipelines. connection, the two-way valve G is sequentially connected with a sample injector H, a chromatographic column I, a detector J, and a fraction collector K.

[0034] When the ten-way valve B is in the first state a, the compressed air inlet is connected to the second closed solvent tank F and the chromatographic column I in turn to form a medium-pressure flow path; the open solvent tank D is connected to the first closed solvent tank in turn E. The vacuum pump C is connected to form a negative pressure flow path; when the ten-way valve B is switched to the second state b, the compressed air inlet is c...

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Abstract

A pneumatic fast column chromatography system is composed of a negative-pressure unit for filling flowing phase and a medium-pressure unit for eluting the flowing phase. Its application method is also disclosed. When a 10-way valve is in the first state, the flowing phase is filled from an open solvent tank into a sealed one under negative pressure while the chromatographic column is eluted by the flowing phase from the second sealed solvent tank via medium-pressure channel. When the flowing phase in the second tank is consumed off, it is switched to the second state, the flowing phase is filled from the open solvent tank into the second sealed one and the chromatographic column is eluted by the first sealed one.

Description

technical field [0001] The invention relates to a rapid preparation column chromatography system, in particular to a novel pneumatic rapid preparation column chromatography system and its application method. Background technique [0002] Flash Chromatography is a column chromatography system developed on the basis of dry column chromatography, which is mainly used for the preparation and purification of mixture samples in combinatorial chemistry, fast synthetic chemistry and natural product chemistry. The existing rapid preparative chromatography systems can be divided into two categories according to the driving mode of the mobile phase solvent: pneumatic type and hydraulic type, respectively using compressed gas and liquid phase pump as the solvent driving force. Among them, the former cannot supplement and change the mobile phase solvent online, which makes the continuous operability poor; the latter is easy to control and has a high degree...

Claims

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Application Information

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IPC IPC(8): B01D15/08
Inventor 包建民
Owner 天津奥秘科技有限公司
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