紫外光谱法测定正构烷烃脱氢油中的单烯烃

Determination ot Mono-olefin inn-paraffin, Dehydr genated Oil byUltraviolet Adsorption Spectrometry

本文采用冲洗吸附色谱法分离试样中的芳烃、二烯烃等干扰组份。然后以烯—碘络合物紫外吸收法测定烷—烯馏份中的单烯含量。同时，从样品中制备标准单烯并测定其吸收系数和回收常数，并讨论了络合物的紫外吸收、干扰、光化学效应和碘浓度的影响等。

Abstract: The arcmatic hydrocarbon, diolefins contents were separated from samples by elu-tion adsorption chromatography, then the amounts of mono-olefin in paraffine was measured by means of ultraviolet absorption spectrometry of olefin-idicne complex.Simultaneously, the st-andard mono-olefin was prepared from samples and its absorbed coefficients and recovered constants were measured.The effects en ultraviolet absorption of complex, interference component, chemical effect of light and iodine concentration were discussed.