Every LC lab has a cache of C18s, but not all C18s are created equal. When you need a general-purpose LC column, don’t just grab any C18. Choose the speed, efficiency, and long-lasting ruggedness of the Raptor C18 column:

Whether for food safety or environmental or bioanalytical analyses, the Raptor C18 phase offers consistently excellent data quality in less time across myriad reversed-phase applications, matrices, and compound classes. 

To lower costs and improve profitability, you need columns to last longer, data to be reproducible, and existing HPLC and UHPLC instrumentation to run faster. Get there with the only general-purpose C18 that gives you Selectivity Accelerated—the Raptor C18 column.

When it comes to short-chain PFAS (C4-C6) and above, our scouting of different phase chemistries showed the C18 phase was the best choice. As the alkyl chain on PFAS molecules gets longer, the interactions between those chains and the C18 ligand increase, providing a great mechanism for retention and resolution.

Restek is a leading developer and manufacturer of GC and LC columns,

sample preparation and collection products, reference standards, and instrument accessories.