Presentation Profile
A comparison of helium and nitrogen carrier gases for analysis of thiophene in benzene (ASTM D7011) by GC-SCD
Currently Scheduled: 10/12/2021 - 2:40 PM - 3:00 PM
Room: Poster Parkway
Main Author
Yuan Lin - Shimadzu
Abstract:
ASTM D7011 specifies the use of GC-SCD for the separation and quantification of trace levels of thiophene in benzene using either helium or nitrogen as a carrier gas. Due to cost concerns with the use of helium, we investigated the use of nitrogen. In comparison with the use of helium for the detection of thiophene in benzene, the use of nitrogen generated similar results and only required ~30 second longer analytical time. Based on similar analytical results, including linearity and sensitivity, the cost savings of using nitrogen versus helium far outweigh the slightly longer run times required.
