色谱

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高效液相色谱-光电二极管阵列检测法测定柴油中芳烃的类型

林玉1,李怿1,白正伟1,何成跃1,张奇2

  

  1. 1.Luoyang Petrochemical Engineering Corporation, Luoyang 471003, China; 2.The Lab of Special Material, Henan University, Kaifeng 475001, China
  • 收稿日期:2007-07-19 修回日期:2007-11-20 出版日期:2008-03-30 发布日期:1984-06-25
  • 通讯作者: 林玉

Determination of aromatic hydrocarbon types in diesel oil using high performance liquid chromatography with photodiode array detection

LIN Yu1, LI Yi1, BAI Zhengwei1, HE Chengyue1, ZHANG Qi2   

  1. 1.Luoyang Petrochemical Engineering Corporation, Luoyang 471003, China; 2.The Lab of Special Material, Henan University, Kaifeng 475001, China
  • Received:2007-07-19 Revised:2007-11-20 Online:2008-03-30 Published:1984-06-25

摘要:

在采用美国试验与材料学会(ASTM) D6591标准方法测定柴油芳烃含量的过程中,通过光电二极管阵列检测器(PDAD)检测得到的色谱保留时间值及光谱特征吸收曲线,观察柴油中各类芳烃在极性氨基柱上的分离情况;用PDAD检测器考察了根据ASTM D6591确定的反冲洗时间点B对分析结果的影响,结果发现其允许的变化范围为B±0.2 min。在单环芳烃和双环芳烃分界不明显时,用PDAD检测器可以确定其切割点。

关键词: 柴油 , 芳烃类型, 高效液相色谱, 光电二极管阵列检测

Abstract:

When using ASTM D6591 to determine the content of aromatic hydrocarbons in diesel oil, a photodiode array detector (PDAD) was used to monitor the separation of aromatic hydrocarbons. The influence of back flush time B was studied and it was observed the results of di-aromatic hydrocarbons or poly-aromatic hydrocarbons will give errors when the back flush time is more than B±0.2 min. The PDAD can also be used to determine the best cutting time between mono-aromatic hydrocarbons and di-aromatic hydrocarbons, when the separation was not baseline resolved.

Key words: aromatic hydrocarbon types, diesel oil , photodiode array detection, high performance liquid chromatography (HPLC)