[Analysis of group composit of crude oil by on-line coupling of capillary HPLC-HTGC]
1Technology Center, Fujian Petrochemical Company, Quanzhou 362100, China.
Abstract:
The group composition of crude oil was analyzed by on-line coupled capillary HPLC-HTGC. After removal of asphaltenes, the oil sample was separated by capillary HPLC into aliphatics, aromatics and resins. The interface cut and stored each fraction, and transfered them into GC sequentially. The group contents of oil were determined by FID. The error of reproducibility(RSD) was less than 3%. The method is accurate, time saving, and easy for operation. It is very important for quality control and development of new and better products in crude oil.
Related Concept Videos
Gas Chromatography–Mass Spectrometry (GC–MS)
A gas chromatograph consists of a long, narrow capillary column with a polysiloxane coating on the inner wall. The coating...
Mass Spectrometry: Complex Analysis
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
Chromatographic Methods: Classification
Chromatographic techniques are typically named by...
Gas Chromatography: Introduction
In GC, a sample is vaporized and mixed with an inert carrier gas (the mobile phase), which transports it through a column.
High-Performance Liquid Chromatography: Introduction
In HPLC, two phases play a critical role in the separation process:
High-Performance Liquid Chromatography: Instrumentation


