New! Introducing Ascentis Express 5 um HPLC Columns with Fused-Core Technology

Presented by

R. A Henry

About this talk

Core-type particles are competing strongly with small porous particles to improve the speed and resolution of HPLC and UHPLC experiments. The pioneering Ascentis Express column with Fused-Core® 2.7µm particles has exploded in popularity because it operates more ruggedly at much lower pressure than current sub-2µm porous particles, yet delivers the same ultra-high performance. This unique performance has been largely attributed to very narrow particle size distribution. Fused-Core® design advantages have also become popular for LC-MS because Ascentis Express columns surpass performance of columns with 3µm porous particles and operate ruggedly at higher velocities and similar pressures. With new, narrow-distribution 5µm Fused-Core® particles, the same design advantages can now be realized over traditional 5µm and 3µm porous particles that remain very popular for HPLC columns. An Ascentis Express 5µm column brings 3µm performance and extreme ruggedness at 5µm pressures to your laboratory. Like Ascentis Express 2.7µm particles, the 5µm particles show flatter van Deemter plots than same-size porous particles and allow separation speed to be maximized with minimal loss of resolution. Extremely high plates per pressure are observed. The core-type 5µm design should replace porous 5µm columns in routine HPLC applications with traditional instruments, and should also compete with porous 3µm columns in many LC-MS applications. Performance will be compared to 5µm and 3µm particle columns, and examples of method transfer will be shown. Ascentis Express 5µm will be available in the same phase modifications as the original Ascentis Express 2.7µm ultra-high performance column. Highly stable columns are available in various IDs and lengths up to 25cm.

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