Preparation method and application of polycaprolactone glycol capillary gas chromatographic column

A technology of polycaprolactone diol and gas chromatographic column, applied in solid adsorbent liquid separation, ion exchange, other chemical processes, etc.

Active Publication Date: 2016-09-07
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Application Information

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Problems solved by technology

Among the existing commercial chromatographic stationary phases, there is no one type of stationary phase that can achieve the separation effect of polyethylene glycol and polysiloxane stationary phases at the same time, especially in the separation of isomers with very close physical and chemical properties. aspects and separation of complex systems with components of different polarities

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  • Preparation method and application of polycaprolactone glycol capillary gas chromatographic column
  • Preparation method and application of polycaprolactone glycol capillary gas chromatographic column
  • Preparation method and application of polycaprolactone glycol capillary gas chromatographic column

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Embodiment Construction

[0015] The invention enables isomers with different polarities to be effectively separated on a type of gas chromatography stationary phase. Combine below Attached picture The present invention is further described. Attached picture 2 It is a polycaprolactone diol capillary gas chromatographic column prepared by a static method, and BTEX is separated on an Agilent 7890A chromatograph, and the separation effect obtained can meet the separation and detection of ethylbenzene and xylene. The chromatographic parameters are as follows: with high-purity N 2 It is the carrier gas, the carrier gas flow rate is 0.6mL / min, the split ratio is 50:1, the temperature is programmed (50°C, 0 minutes, 5°C / min to 80°C, hold 0 minutes), the inlet and detector temperatures are respectively 250°C and 300°C.

[0016] attached picture 3 It is a polycaprolactone diol capillary gas chromatographic column prepared by a static method. The phenolic mixture is separated on an Agilent 7890A chroma...

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Abstract

The invention relates to a preparation method and application of a polycaprolactone glycol capillary gas chromatographic column. A polycaprolactone glycol polymer is used as a capillary gas chromatographic stationary phase, and the polymer is smeared onto the inner wall of an elastic molten quartz capillary which is pre-roughened by utilizing sodium chloride and methanol suspension by virtue of a static method. The obtained capillary column is high in column efficiency, good in inertness and good in heat stability, can be used for separating components different in polarity such as aliphatic and aromatic hydrocarbons, alcohols, ketones, aldehydes, amines and phenols, and positional isomers of the components, is particularly suitable for effectively separating the isomers which are difficult to separate such as dimethylbenzene, toluidine and methylphenol and has good application prospect.

Description

technical field [0001] The invention belongs to the technical field of gas chromatography stationary phase, in particular to the preparation and application of a polycaprolactone diol capillary gas chromatography column. Background technique [0002] Gas chromatography is one of the important means of modern separation and detection, and is widely used in the fields of petrochemical and environmental analysis. The selection of chromatographic column is one of the important techniques of this analysis method. The separation and detection of different types of components often require the selection of chromatographic columns with different polarity stationary phases, so the development and research of chromatographic stationary phases has always been an important research direction in the field of gas chromatography. [0003] Currently available commercial gas chromatographic stationary phases mainly include polysiloxanes, polyethylene glycols and cyclodextrins. Polysiloxane...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/281B01J20/32B01D15/08B01D15/20
CPCB01D15/08B01D15/206B01D15/265B01J20/281B01J20/3202B01J20/3225B01J2220/84B01J2220/86
Inventor 齐美玲彭剑林
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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