Energy and Chemicals
Agilent J&W PoraBOND Q PT and CP-Molsieve 5Å PT particle trap columns were evaluated by analyzing permanent gases and light C1-C2 hydrocarbons with GC/TCD, configured with two valves using helium and argon as carrier gases, respectively. The CP-Molsieve 5Å PT column was used to separate Ar, O2, H2, N2, CH4, and CO. Excellent resolution, especially for Ar and O2, was achieved. The combination of a PoraBOND Q PT column and isolation valve was used for the separation of CO2 and light hydrocarbons. RSD for peak area obtained from 250 replicate analyses of a standard gas mix was below 0.5%, and no signal spikes related to particle shedding were observed using helium as carrier gas. PLOT PT columns also exhibit good repeatability and stability when using argon as carrier gas, which can greatly improve hydrogen sensitivity. Agilent J&W PLOT PT column with integrated dual-ended particle trap technology can protect isolation valves from particles that can shed from the PLOT column, and offer increased stability and reliability for valve-switching analysis.
Publication number: 5991-4873EN.pdf
Publication Date: June 24, 2014