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Gas chromatographic column for analyzing monomethylamine and preparation method thereof

A gas chromatographic column and chromatographic column technology, applied in the field of gas chromatographic column for the analysis of monomethylamine and its preparation, can solve the problems of covering the main peak, impurity peak, etc., and achieve the effects of short analysis period, meeting the detection needs, and easy operation

Inactive Publication Date: 2014-09-10
SHAANXI YANCHANG PETROLEUM XINGHUA CHEM
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Problems solved by technology

However, the above-mentioned chromatographic column has the following defects: when analyzing the monomethylamine aqueous solution, the peak time of the monomethylamine main peak is before the dimethylamine and trimethylamine impurities, and the main peak covers the impurity peak

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  • Gas chromatographic column for analyzing monomethylamine and preparation method thereof
  • Gas chromatographic column for analyzing monomethylamine and preparation method thereof

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] In order to achieve the purpose of the present invention, the embodiment of the present invention proposes a gas chromatographic column for monomethylamine analysis, which is characterized in that it includes a chromatographic column tube, a stationary phase and a stationary liquid. The chromatographic column tube is a stainless steel tube with an outer diameter of 3 mm and a length of 2 m, which is used for filling the stationary phase; Celite, the par...

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Abstract

The embodiment of the invention provides a gas chromatographic column for analyzing monomethylamine. The gas chromatographic column is characterized in that a chromatographic column pipe is a stainless steel tube with the outer diameter of 3mm and the length of 2m; a stationary phase is 6201 red kieselguhr with the granularity of 60-80 meshes; the stationary phase and stationary liquid are taken according to the mass ratio of the stationary phase to triethanolamine (analytically pure) to potassium iodide (analytically pure) in the stationary liquid of 100:20:2.6, and are sprayed quantitatively; besides, the embodiment of the invention also provides a preparation method of the gas chromatographic column for analyzing monomethylamine. The technical scheme can solve the problem that a main peak covers an impurity peak when the traditional chromatographic column is used for analyzing a monomethylamine solution, can rapidly separate various impurities in the monomethylamine water solution in a high-efficiency manner and can be widely applied to the field of methylamine analysis.

Description

technical field [0001] The invention relates to a gas chromatographic column for monomethylamine analysis and a preparation method thereof, belonging to the field of analytical chemistry. Background technique [0002] At present, monomethylamine has been widely used in pesticides, medicines, rubber, dyes and other organic synthesis industries, and has good development and application prospects. [0003] Gas chromatography is widely used in the field of methylamine analysis. In the current field of methylamine analysis, the stationary phase used in the chromatographic column for methylamine analysis is 407 organic support and GDX203 support. However, the above-mentioned chromatographic column has the following defects: when analyzing the monomethylamine aqueous solution, the peak time of the monomethylamine main peak is before the dimethylamine and trimethylamine impurities, and the main peak covers the impurity peak. Contents of the invention [0004] The purpose of the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/60G01N30/02
Inventor 郭俊峰董亚琴薛武彪
Owner SHAANXI YANCHANG PETROLEUM XINGHUA CHEM
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