Dursan® "Metal Free" HPLC Column Hardware for Cogent HPLC Columns. by MicroSolv Technology Corp.

The Dursan technology achieves corrosive resistance like exotic materials but with a fraction of the costs. The Cogent columns that are manufactured with Dursan Coating will allow you to use high salt concentrations and a very wide pH range, but it is important to remember to remain in the Specifications of the stationary phase. No longer will the column hardware be the limiting factor for compounds or a mobile phase that will pit or damage the HPLC column hardware.

Dursan can withstand extreme temperatures (-210°C - 450°C) that far exceeds the stationary phase specifications.
For some small molecule compounds that interact with stainless steel, it has been shown to improve peak shape and peak height. These columns, depending on your sample may even provide better %RSD.

• Increased hardware robustness even under extreme salt or pH conditions
• Improved hardware inertness for many biological compounds
• Improved hardware chemical compatibility with THF compared to PEEK
• Improved hardware chemical compatibility with sulfur-containing compounds