摘要
提出了一种快速分析原油和岩石抽提物中饱和烃组分的毛细管气相色谱(GC)方法。由于在该方法中采用了细内径毛细管柱,故饱和烃的GC分析周期由原来的8090min缩短至15min,分析速度加快约5倍,大大提高了工作效率和仪器通量,使石油饱和烃得到了很好的分离分析。该方法符合中华人民共和国石油天然气行业标准SY/T5120 1997的要求。20万理论塔板数的细径柱的应用,可供石油中异构烷烃,尤其是甾烷、萜烷类的气相色谱/质谱(GC/MS)快速分析方法及芳烃的GC快速分析方法借鉴。
A fast capillary gas chromatographic method for the analysis of saturated paraffin in crude oil and rock extracts is described. By using a 20 m narrow bore capillary column, the analytical time has been shortened to 15 min, 5 times faster in comparison with 80 to 90 min by conventional capillary columns, which resulted in higher throughput, higher efficiency and better separation. The fast method is fully in compliance with the Petroleum Industrial StandardSY/T5120-1997 and paves the way for the fast analysis of paraffin isomers, such as steroidal paraffin and terpane by gas chromatography/mass spectrometry (GC/MS) and that of aromatics by gas chromatography.
出处
《色谱》
CAS
CSCD
北大核心
2004年第5期479-481,共3页
Chinese Journal of Chromatography
关键词
快速分析
气相色谱法
饱和烃
原油
岩石抽提物
fast analysis
gas chromatography
saturated paraffins
crude oil
rock extracts
