Sigma-Aldrich Expands the Ascentis® Express U/HPLC Column Line with Addition of 2.0 Micron Fused Core® Particle Columns
6 Oct 2014
Sigma-Aldrich Corporation has announced that Supelco, its innovative analytical products and services research business, has launched the Ascentis® Express 2.0 micron, a high-speed, ultra high-performance liquid chromatography (UHPLC) column platform based on the proven Fused-Core® particle design.
Ascentis Express 2.0 micron Fused-Core particles are designed to provide UHPLC performance, while addressing the disadvantages inherent in existing sub-2 micron UHPLC columns. Ascentis Express 2.0 UHPLC columns deliver 300,000 plates per meter efficiency. Furthermore, Ascentis Express 2.0 micron columns are less susceptible to column plugging due to the large 1.0 μm frits on the column inlet. While Ascentis Express columns can be used up to 1,000 bar (14,500 psi), they will produce approximately 20% lower back pressure than most commercially available sub-2 μm UHPLC columns under the same conditions, reducing concerns of column frictional heating and instrument wear and tear associated with very small particles.
"Ascentis Express 2.0 is the outcome of listening to customers' needs for the UHPLC market," said Wayne K. Way, Ph.D., Marketing Manager for HPLC at Sigma-Aldrich. "Ascentis Express 2.0 micron UHPLC columns deliver the speed and efficiency needed by today's research and applied markets for use in areas such as pharmaceutical drug development and clinical diagnostics and testing."
With this launch, the Ascentis Express product line has expanded to 2.0, 2.7 and 5 micron particle U/HPLC columns. The Ascentis Express product line is scalable from UHPLC to legacy HPLC systems. The scalability assures researchers that their methods can be seamlessly transferred across campus or around the world.
Available in 11 different dimensions and two introductory phases, C18 and F5, Ascentis Express 2.0 is part of Sigma Aldrich's ongoing objective to increase the research community's access to premier products based on innovative technologies.
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Ascentis® Express C18
Sigma-Aldrich SupelcoC18 HPLC column for High Speed and High Resolution Applications. Ascentis® Express C18 is the first choice for starting a new method. Ascentis Express HPLC columns, through the use of Fused-Core® particle technology, can provide you with both the high speed and high efficiencies of sub-2 μm particles at lower system pressure. With identical conditions, the Ascentis Express C18 column performs more than 4X faster than a standard C18 column, for most applications. The combination of high efficiency and lower operating pressure benefits UHPLC (or other ultra high pressure system) users, as well as conventional HPLC users. The increased efficiency of Ascentis Express columns enables you to use shorter columns and reduce solvent usage/cost. The Ascentis® Express C18 is also featured in an application note about liquid GC columns which can be found on the SelectScience website here, and a study on HPLC separation of bile acid here. Column details: Mode: Reversed Phase USP Code: L1 Particle Size: 2.7, <2.0 μm Pore Size: 90 Å Length: 20, 30, 50, 75, 100, 150 mm ID: 1.0, 2.1, 3.0, 4.6, 10 mm