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SUMMARY:Chromatography Disc Gp
DESCRIPTION:Eric Grumbach\, Marketing Manager\, Chemistry Operations for Waters Corporation will speak on «Superficially Porous Particles:  A Critical Look».\nPizza and soda at 6 pm\, presentation at 6:35. Use the parking garage northwest of McMillen\, between Throop Drive and Forest Park Parkway. Go to the Meetings page for more venue\, parking\, and reservation info. RSVP to bruce_ritts@steris.com by noon on June 8th to ensure that enough food is ordered.\nSpeaker’s notes: Since the introduction of HPLC nearly 40 years ago\, many new stationary phases have been developed to achieve faster\, more efficient separations. There are several ways of engineering a column in order to achieve these goals\, including: increasing packed bed homogeneity\, decreasing intra-particle volume\, narrowing particle size distribution\, and decreasing the diffusion distance\, which can be achieved\, in part\, by using smaller particles. It can also be achieved by using superficially-porous particles\, which have a solid silica core and porous outer shell. Despite the fact that this technology has been around since the 1970s\, HPLC columns containing superficially porous (aka\, fused-core\, core-shell\, pellicular) particles have been improved to the point where rapid\, highly efficient separations can be achieved for some applications.\nIn this presentation\, we discuss and compare the impact of extra-column band spreading\, LC system operating pressure\, and separation temperature for sub–2-µm particle and superficially porous particle columns using both conventional HPLC and UPLC® instrumentation.
URL:https://www.stlacs.org/event/chromatography-disc-gp-2/
LOCATION:MO
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