Agilent J&W DB-1ms and HP-1ms Ultra Inert Capillary GC columns raise the bar on consistent column inertness performance for better peak shapes and greater signal-to-noise ratios. They allow you to perform trace level analysis including the analysis of acids, bases, or other active compounds with the utmost confidence. They also help ensure an inert GC flow path that is essential for sensitivity, performance, and the integrity of your analytical results.  Consistent column inertness; extremely low bleed.