高效液相色谱法测定有机硫化合物浓度  

Determination of the content of organic sulfide compounds by HPLC

作　　者：沈齐英[1] 李进平[1] 

机构地区：[1]北京石油化工学院

出　　处：《石油与天然气化工》2015年第3期109-112,共4页Chemical engineering of oil & gas

基　　金：北京市教育委员会科技发展计划项目资助"重油生物催化脱硫的研究"(KM200610017001)

摘　　要：建立了高效液相色谱同时测定苯硫醚、苯并噻吩、二苯并噻吩和4,6-二甲基二苯并噻吩的方法。在正十六烷为溶剂、90%（质量分数）甲醇水溶液为流动相、流速为1mL/min、检测波长为254nm的条件下,4种组分在10min内得到良好分离。线性质量浓度范围分别为3.1~350μg/mL、2.3~400μg/mL、3.4~500μg/mL和5.0~300μg/mL,检测限分别为1.98μg/mL、1.59μg/mL、1.47μg/mL和2.05μg/mL;并有较好的精密度,稳定性和回收率。实验证明,该法操作简便、分析快速、结果准确,可用于不同来源及不同加工工艺的石油产品中有机硫化合物的同时检测。A method for simultaneous determination of diphenyl sulfide,benzothiopene,dibenzothiopene and 4,6-dimethyl dibenzothiophene by high performance liquid chromatography（HPLC）was proposed.While the n-hexadecane was solvent,the mobile phase was aqueous solution of 90 wt%methanol and flow rate of 1 mL/min,the detection wavelength was in 254 nm,the results showed that four components could be well separated in 10 minutes.Linearity of four analyses were found in range of 3.1~350μg/mL,2.3~400μg/mL,3.4~500μg/mL and 5.0~300μg/mL,and the detection limit were 1.98μg/mL,1.59μg/mL,1.47μg/mL and 2.05μg/mL respectively,which had good precision,stability and recovery.The experimental results showed that the method was simple,rapid and accurate,and could be used for determination of organic sulfide compound in petroleum products from different source and processing technology.

关 键 词：高效液相色谱 有机硫化合物 油品 

分 类 号：TE626[石油与天然气工程—油气加工工程] O657.72[理学—分析化学]