The TurboMatrix Headspace Trap system uses elevated temperatures to partition the analytes of interest into the vapor phase for analysis. This offers a unique advantage over traditional purge-and-trap concentrators. The headspace trap only transfers the volatile analytes not the solid or liquid phase to the GC. In addition, the system automatically bakes out the flow path between injections. This results in very low carryover and minimum downtime, increasing laboratory productivity and eliminating the contamination problems that many environmental laboratories contend with when using purge-and-trap concentrators. Figure 3 is a demonstration of a typical environmental sample analyzed using a TurboMatrix Headspace Trap. This concentration level would typically cause significant carryover problems with purge-and-trap concentrators. The TurboMatrix Headspace Trap demonstrated less than 0.2% carryover on the next injection.
U.S. EPA 8260B is a challenging method used in the majority of U.S. and many international environmental laboratories for the analysis of VOCs. It is a complex method that requires multiple quality criteria be passed throughout the analysis. Fuel oxygenates have traditionally been difficult to analyze using purge-and-trap concentrators. As demonstrated here, the PerkinElmer Clarus 500 GC/MS configured with a TurboMatrix HS-110 Trap meets all the 8260B method requirements for the analysis of fuel oxygenates. In addition, the TurboMatrix HS Trap offers the following adv