The Oasis® on-line columns provide a fast and efficient way to cleanup biological samples on-line for LC/MS or LC/MS/MS analysis. There are five available Oasis sorbent chemistries that are designed to meet just about all of your on-line needs. These sorbents are all built upon the unique water-wettable Oasis HLB copolymer. The Oasis on-line columns come in a variety of particle sizes and dimensions to meet your specific application requirements. 
 
Waters offers various Oasis® on-line column configurations designed to fit all your on-line analysis needs. These formats are available with the patented Oasis sorbents in a wide choice of particle sizes and dimensions. 
 
The Oasis on-line columns make it possible to analyze a specific analyte in a sample matrix when combined with the appropriate Waters narrow-bore analytical columns, such as XSelect™, XBridge™, SunFire™, Atlantis®, XTerra®, or Symmetry® columns.