News — InnerLok
Cutting Fused Silica Capillary Columns per LC-GC Application Note
capillary chromatography Clean cut column leaks column repair column repair union cracked column fixing a broken column glass fragments glass union glass y splitter InnerLok Pres2fit press2fit Pressfit presstight quartz union y splitter
Polymicro Technologies (a division of Molex) was the first company to mass produce fused silica capillary for the entire capillary gas chromatography market. That was thirty years ago and they are still the single largest manufacturer of the materials. (Polyimide coated, fused silica capillary for GC columns was an HP invention, but they reserved their production for themselves, alone.) Polymicro has made more GC capillary than anyone on the planet, by far: they are considered the experts and they are exceptionally good at what they do, of that there is no doubt. I started my career at Polymicro in the late 1980: I...
Instructions: IQ’s Sapphire™ Wafers for Cutting GC Capillary Columns
capillary chromatography Clean cut column leaks column repair column repair union cracked column cutting fiber fixing a broken column fused quartz fused silica gas chromatography glass fragments glass union glass y splitter InnerLok Pres2fit press2fit Pressfit presstight quartz union y splitter
Cutting capillary and making gas-tight seals is critical to good GC practice and making seals on silica press-fit connectors requires almost perfect cuts (unless you are using Pres2fit™ connectors). Cleanly cut ends are also important for CE for minimizing distortions of the electric field at the column ends. Capillary: The first thing that the separation scientist needs to understand is that not all silica capillary is the same. There are three major producers of GC and CE capillary around the world in Australia, Germany and in the USA. While very similar in materials of production, the differences in production methods...