The HALO® PFAS Delay column from Advanced Materials Technology is specifically desinged to prevent background PFAS contamination from interfering with analytical results. Positioned upstream of the sample injector, this column features a highly retentive, endcapped alkyl silane stationary phase that effectively retains background instrument-derived PFAS compounds under a wide range of mobile phase conditions. By delaying the elution of these contaminants, the HALO® PFAS Delay column ensures they do not coelute with target analytes, thereby improving data integrity and detection accuracy in sensitive PFAS analyses.

An application-assured solution within the HALO® Enviroclass range, the PFAS Delay column is optimised for seamless integration with the HALO® PFAS C18 and HALO® PFAS PCS Phenyl-Hexyl columns. These columns provide a comprehensive and reliable platform for the separation and quantification of PFAS compounds in complex environmental matrices. The HALO® PFAS Delay column can be confidently employed in EPA Methods 533, 537.1, 1633, 8327, and emerging PFAS methodologies, ensuring robust and reproducible performance across a broad range of environmental applications.