Chromegabond HC-C18                                    

• ODS stationary phase with 22% bonded carbon
• Excellent for difficult to retain compounds
• Dense ODS coverage
• Highly efficient columns packed with either 3 or 5 micron particles

Chromegabond HC (high carbon) contains 22% of monomerically bonded carbon producing a highly retentive ODS column. This dense high carbon coverage forms an hydrophobic shield and prevents interaction with underlying silica support. Chromegabond HC is nonendcapped, extremely stable and can be used with a wide variety of mobile phase compositions. Unfortunately, Chromegabond HC columns are subject to phase collapse under highly aqueous mobile phase conditions (Organic compositions of less than 10%). Chromegabond HC columns are useful for compounds that are incompatible with 100% aqueous mobile phases (%Organic less than 10%), but are difficult to retain or have low retention on traditional ODS columns (Carbon = 14-19%). The 3 micron Chromegabond HC columns are highly efficient and exhibit theoretical plate measurements of between 160,000 to 170,000 plates/meter.