This document describes a method for quantitatively analyzing aromatic hydrocarbons in gasoline and naphtha using an Agilent 6820 gas chromatograph equipped with a flame ionization detector and a single polar capillary column. The internal standardization method yields quantitative concentration data for 57 aromatic target compounds.
The document details a method for analyzing aromatic hydrocarbons in finished gasoline, blending feedstock, and straight-run naphtha. It utilizes an Agilent 6820 Gas Chromatograph equipped with a flame ionization detector (FID) and a single polar HP-INNOWax capillary column.
The analysis employs an internal standardization method using n-tridecane to achieve quantitative concentration data for 57 aromatic target compounds. The text provides specific analytical conditions, including inlet temperature, carrier gas flow, oven programming, and detector settings, along with theoretical response factors for various hydrocarbon groups.
| GC Model | Agilent 6820 Gas Chromatograph |
|---|---|
| Detector Type | Flame Ionization Detector (FID) |
| Column Type | Single Polar Capillary Column HP-INNOWax |
| Column Dimensions | 60 m, 0.25 mm id, 0.25 µm film |
| Internal Standard | n-tridecane |
The samples included Chinese finished gasoline (RON = 93), Japanese finished regular and premium gasoline, reformate gasoline, heavy fluid catalytic cracking (FCC) gasoline, and straight-run heavy naphtha.
The method yielded quantitative concentration data for 57 aromatic target compounds.