Measurement of carbon distribution in rubber wax with high temperature gas chromatography

Carbon distribution and content of normal alkane and isoalkane in rubber waxes are measured by using high temperature gas chromatography. Experiment results show that the optimum measurement conditions for gas chromatography are initial temperature of column being 60℃, final temperature of column being 360℃, heating rate being 5 -15℃/min, sample size being 0. 4μL, and vaporization room temperature being 3℃ higher than column temperature. Under the above conditions, the components of rubber wax can be effectively separated. Ruber wax samples can be analyzed quantitatively and qualitatively trough processing the measured data on Agilent Cerity working station and in combination with standard samples.