This document introduces an economical solution to test permanent gases and light hydrocarbons using the Agilent 7820A GC 3-valve system. The Agilent 7820A Gas Chromatograph equipped with three valves, a flame ionization detector (FID), and a thermal conductivity detector (TCD), is configured for analysis of permanent gases and light hydrocarbons. The TCD channel with packed columns is used to measure H2,CO2,O2, N2,CH4 and CO. A capillary column ( Al2O3 PLOT: 50 m × 0.53 mm) is used to measure all hydrocarbons (C1~C6) including CH4.
The document presents a new economical solution for testing permanent gases (H₂, O₂, N₂, CO, CO₂) and light hydrocarbons. It details the configuration of an Agilent 7820A GC equipped with three valves, a flame ionization detector (FID), and a thermal conductivity detector (TCD). The setup utilizes full electronic pneumatics control (EPC) to ensure excellent repeatability for retention time and peak area.
The TCD channel is used to measure H₂, CO₂, O₂, N₂, CH₄, and CO.
A capillary column (Al₂O₃ PLOT: 50 m x 0.53 mm) is used to measure all hydrocarbons from C1 to C6.
Valve control is handled by EZChrom Elite compact software.