Column connections have been a source of frustration since the advent of gas chromatography. For starters, simple connection can leak, causing high background noise, damaged GC column stationary phase, questionable results, and wasted time retightening fittings.

Now you can improve your GC flow path integrity – and lengthen your periods of unattended operation – with easy-to-use, leak-free connections from Agilent. They allow anyone to create reliable connections quickly, while making advanced flow path techniques (such as backflush, retention gaps, and column effluent switching) more routine.

 

Discover all the Agilent supplies that help ensure leak-free connections



Self-Tightening Column Nuts for GC

This unique, stainless steel GC column nut delivers a tight connection – without expensive upgraders or adapters. An innovative spring-driven piston continuously presses against the short graphite/polyimide ferrule, maintaining a leak-free seal even after hundreds of injections. It is especially well suited for oxygen sensitive detectors, such as MS and ECD. Tight column connections reduce background noise for reliable results – and they save time because you never need to retighten fittings.


Installing a fused silica column can be difficult. From installing the ferrule and column nut, measuring the column depth, and fitting into the instrument, there’s numerous ways to add variation into the results. So we added a locking collar to the next-generation Agilent Self Tightening column nut design, which makes installation easy and reduces the possibility of variation. The locking collar enables you to lock the column in place, for accurate and repeatable installation results, time after time. 





How to Use the Agilent Self-Tightening Column Nut: