Innovative cryogen-free ambient air monitoring of trace-level air toxics at high humidity
This application note presents an advanced analytical system for the sensitive detection of trace-level air toxics in humid ambient air samples, in accordance with US EPA Method TO-15A. The cryogen-free preconcentration and thermal desorption approach, coupled to GC-MS, delivers exceptional chromatographic performance even for highly volatile and polar compounds. The system meets the stringent detection limit requirements of the latest air monitoring regulations, with method detection limits as low as 0.7 pptv. This innovative analytical solution provides a robust, cost-effective platform for the reliable quantification of hazardous air pollutants, enabling compliance with regulatory standards.
High pH and Temperature with HALO® ELEVATE C18, 1.5 mm ID Column
December 11th 2024Over the course of 5000 injections, the HALO®Elevate C18 1.5 mm ID column demonstrates stability and robustness in the stationary phase and the column hardware, with no significant changes to the retention time, peak shape, and back pressure.
Separation of Antidepressants Using HALO 90 Å PCS C18 Compared to C18
December 11th 2024A mix of four antidepressants is separated using the HALO®PCS (positive charged surface) C18 column demonstating the improved tailing factor and efficiency when compared to a traditional (uncharged) C18 stationary phase.
