双烯合成反应与气相色谱法联合测定油品中共轭二烯烃含量的研究Ⅰ．填充柱气相色谱法

Study on the Method for Determination of Content of Conjugated Dienes in Petroleum Products bv the Combination of Diene Synthesis Reaction with Gas ChromatographyⅠ.Packed Column Gas Chromatography

利用气相色谱快速、准确的分析特点，代替滴定法测定油品中共轭二烯烃合成反应后的水解、滴定等复杂步骤，分析时间是原来的１／５～１／６。研究了二烯合成反应的反应程度和碘、三氯化铝作催化剂的情况。建立了独特的内标法和二烯烃含量的计算公式。新法省去复杂的传统计算过程，使测定和计算变得简单、迅速。

n the present paper,a fast and accurate gas chromatographic method was used in place of the complexconventional procedures,such as, hydrolysis and titration to determine the conjugated diene content inpetroleum products,The analysis time was reduced by 4/5～5/6. The reaction degree and reaction conditionsof the diene synthesis in the use of iodine and aluminium chloride as catalyst were studied. A special internalstandard method and a calculating formula of conjugated diene content were established.