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Method for separating aromatic compounds and supercritical fluid chromatograph

A technology of supercritical fluid and separation method, which is applied in the field of separation of aroma compounds, which can solve the problems of inability to obtain compounds and achieve sufficient separation effect

Pending Publication Date: 2020-12-18
SHIMADZU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In NMR, at least a few μg of sample is required for one measurement, but the amount of compounds that can be separated at one time in a gas chromatograph is several ng, so in the case of using a gas chromatograph, it cannot be obtained without repeating multiple separations Amount of compound required for structural elucidation by NMR

Method used

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  • Method for separating aromatic compounds and supercritical fluid chromatograph
  • Method for separating aromatic compounds and supercritical fluid chromatograph
  • Method for separating aromatic compounds and supercritical fluid chromatograph

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Embodiment Construction

[0034] Hereinafter, an embodiment of the method for separating aroma compounds and supercritical fluid chromatography (SFC: Supercritical Fluid Chromatography) of the present invention will be described with reference to the accompanying drawings.

[0035] figure 1 It is a structural diagram of main parts of the supercritical fluid chromatograph of the present embodiment. The supercritical fluid chromatograph 1 is provided with: a gas cylinder 11 containing mobile phase substances; a booster pump 12; a liquid container 13 containing a modifier solution added to the mobile phase; a pump 14; a mixer 15; a sample injection unit 16 Chromatographic column 17; Back pressure control valve 18; Spectrophotometer 19 and fraction collector 20. In addition, a control processing unit 4 that controls the operations of these respective units is provided.

[0036] Carbon dioxide as a mobile phase substance is accommodated in the gas cylinder 11 . In addition, methanol as a modifier is acco...

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Abstract

Provided is a technique for separating an aromatic compound using a supercritical fluid chromatograph. This method for separating an aromatic compound comprises a step for loading a sample containingan aromatic compound into a fluid flow of a mobile phase, which is a supercritical fluid of a prescribed substance, and introducing a chromatographic column filled with a filler comprising a polymer having an unsaturated hydrocarbon structure.

Description

technical field [0001] The invention relates to a method for separating aroma compounds and a supercritical fluid chromatograph for implementing the method. Background technique [0002] Conventionally, a gas chromatograph has been used to analyze unknown aroma compounds contained in natural substances (for example, Patent Document 1). In the analysis of aroma compounds using a gas chromatograph, a sample extracted from natural substances is vaporized, and the gas flow carried by the carrier gas is introduced into a column and separated from other compounds. The structure of the isolated compound can be elucidated by, for example, measurement using a nuclear magnetic resonance (NMR: Nuclear Magnetic Resonance) apparatus. [0003] However, a capillary column generally used in a gas chromatograph has a stationary phase coated on the inside of the capillary, so the amount of compounds that can be adsorbed to the stationary phase in the capillary column is small. In NMR, at le...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06G01N30/74G01N30/32G01N30/30G01N30/86
CPCG01N30/02G01N30/06G01N30/74G01N30/32G01N30/30G01N30/86G01N30/8637G01N2030/065Y02P20/54
Inventor 藤户由佳马场健史
Owner SHIMADZU CORP
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