GL Sciences™ Inc. (Japan) is leading developer and manufacturer of HPLC-columns with specially inert packing material. The well-known brand Inertsil™ is widely used in the pharmaceutical industry worldwide as Inertsil columns are also available as validated HPLC-columns (e.g. Inertsil ODS-3V). More HPLC-columns from GL Sciences are InertSustain and InertSustainSwift. Please see below an overview of available chromatography columns of GL Sciences. 

Titansphere, MonoTip, MonoSpin, MonoTrap: Purification and Enrichment of Phosphopeptides. More info...
InertCap: Gas Chromatography Columns.
GC-Zubehör: Digital Flow Meter GLF-1010. More info...
GC-Zubehör: Gas Leak Detector LD-239 for Gas Chromatography. More info...

2021: InertSustain AX-C18. Better retention of acidic compounds.