Chem. J. Chinese Universities ›› 1983, Vol. 4 ›› Issue (5): 643.

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A STUDY ON THE THERMOSTABLE STATIONARY PHASES FOR GAS CHROMATOGRAPHY (Ⅱ)——THE USE OF POLYMER PREPARED BY A MIXTURE OF DIMETHYLDICHLOROSILANE,PHENYLTRICHLOROSILANE AND TETRAPHENYLPHENYLTRIETHOXYSILANE AS STATIONARY PHASE

Yan Changtai, Lu Maosun, Tang Hongmao, Yang Xiaoling   

  1. Department of Chemistry, Shangdong University, Jinan
  • Received:1982-03-03 Online:1983-10-24 Published:1983-10-24

Abstract: The hydrolysate and prepoiymer of a mixture of dimethyldichorosilane, phenyltrichlorosilane and tetraphenylphenyltriethoxysilane were prepared. They were dissolved in benzene and then coated on the diatoma-ceous supports respectively.The coated support was heat-treated under a stream of nitrogen at 400℃ for 12 hours.The prepared column has been used at a temperature up to 270℃ without bleeding and gave a number of HETP of 1200 plates per metre. A mixture of n-alkanes containing C7 -C30could be well separated by the prepared column with the temperature programmed to 280℃. A mixture of n-alkanols containing C4OH, C6OH, C8OH, C10OH, C12OH, C14OH, C16OH and C18OH has been well separated also when the temperature was programmed to 250℃.n-C16H34 and n-C10OH have been quantitatively determined by the column.The effects of the surface properties of the supports, the weight percentage of the hydrolysate or prepoiymer used in preparing the column and the temperature of heat-treament are discussed.

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