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Isolation of some high-boiling or ganometallic compounds by preparative gas chromatography

https://doi.org/10.32362/2410-6593-2016-11-3-12-16

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Abstract

Preparative gas chromatography is proposed to isolate some high-boiling organometallic compounds. Isolation of high-boiling substances should be conducted at a column temperature significantly below the boiling point, because most isolated compounds are thermally unstable at such temperatures. Stationary phases for preparative gas chromatography have a temperature limit of 350°C. The reduction of the column temperature is based on simultaneous changing the parameters of the chromatographic experiment (column length, impregnation degree, flow rate of the carrier gas). The influence of reducing the column temperature on the shape of the chromatographic peak is shown. The peak has an asymmetric shape, and its width increases. Therefore, the possibility of high-boiling substances preparative isolation depends on temperature decrease as the column separation efficiency is maintained.

About the Authors

G. N. Turkeltaub
Moscow Technological University (Institute of Fine Chemical Technologies)
Russian Federation
Moscow, 119571 Russia


E. A. Chernyshev
Moscow Technological University (Institute of Fine Chemical Technologies)
Russian Federation
Moscow, 119571 Russia


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For citation:


Turkeltaub G.N., Chernyshev E.A. Isolation of some high-boiling or ganometallic compounds by preparative gas chromatography. Fine Chemical Technologies. 2016;11(3):12-16. https://doi.org/10.32362/2410-6593-2016-11-3-12-16

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ISSN 2410-6593 (Print)
ISSN 2686-7575 (Online)