Chinese Journal of Applied Chemistry

Chinese Journal of Applied Chemistry

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Determination of the Content of Styrene-Butadiene Rubber in modified Asphalt using High Performance Liquid Chromatorraphy

FENG Xiaojiao1, GUO Zhi′an1*, WANG Pei1, WANG Liqin2   

  1. (1.Ministry of Education Key Laboratory of Synthetic and Natural Functional Molecular Chemistry;
    2.Ministry of Education Key Laboratory of Culture Heritage Research and
    Conservation,Northwest University,Xi′an 710069,China)
  • Received:2011-05-13 Revised:2011-09-05 Published:2012-03-10 Online:2012-03-10

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Abstract: A sensitive method was used to measure the content of styrene-butadiene rubber(SBR) in modified asphalt by HPLC. The temperature was set at 30 ℃ and a wavelength of 222 nm was used for the detector. A mobile phase of hexane, acetonitrile and THF with equal proportion was used. The RSD of this method is 1.5%, and a linear equation of y=800.94x+579.03 with a correlation coefficient of r=0.9998 was obtained.

Key words: HPLC, Gel column, Modified asphalt, SBR

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