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Prominence UFLC

new Shim-pack XR-ODS is based on an in-depth evaluation of a variety of factors such as separation performance, durability and column pressure. Use of 2.2 m silica gel-based material reduces column flow resistance, allowing high-speed analysis, even with systems comprised of conventional HPLC hardware. Since the XR-ODS achieves a good balance between separation efficiency and pressure, resolution performance is maintained as in a generalpurpose column (4.6mmi.d. x 150mm, 5m) while greatly shortening analysis time (Figure 1). Moreover, column pressure is maintained at 30 MPa or less in most analytical conditions without using a specialized system for extremely high pressure. We reported the development concept and some features and applications of the Shim-pack XR-ODS columns in our 2006 spring issue of LC WorldTalk . We hope this article will aid in the understanding of Shim-pack XR-ODS columns.
See Figure 1



Prominence UFLC
Prominence UFLC responds to increased customer requests for ultra-fast analysis. Based on the existing Prominence components, improvements in flow path pressure (autosampler), high-speed gradient (controller and solvent delivery units), and reduction of peak broadening in flow paths (autosampler and detector cell) have been implemented. The maximum pressure of the SIL-20AHT/20ACHT autosampler has been raised to 35 MPa to correspond with Shim-pack XR-ODS pressure tolerances. Basic specifications, including injection volume accuracy, precision, carryover and durability, are the same as those of the SIL-20A/20AC.


Ultra Fast

High-throughput analysis requires shortening of the total cycle time, which is defined as the separation, the injection interval and the column equili
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