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DTSTART;TZID=America/Chicago:20100609T230000
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DTSTAMP:20260527T153952Z
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UID:13597-1276124400-1276131600@www.stlacs.org
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/
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DTSTART;TZID=America/Chicago:20100617T233000
DTEND;TZID=America/Chicago:20100618T013000
DTSTAMP:20260527T154040Z
CREATED:20260527T154040Z
LAST-MODIFIED:20260527T154040Z
UID:13702-1276817400-1276824600@www.stlacs.org
SUMMARY:YCC meeting/happy hour
DESCRIPTION:You’re invited to the next YCC meeting and happy hour. Come meet other YCC members and find out what is going on in the area while networking and socializing with new and old friends. \nWe will be planning our upcoming hike and starting to plan our annual Chemistry Career Night.
URL:https://www.stlacs.org/event/ycc-meeting-happy-hour-4/
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DTSTART;TZID=America/Chicago:20100619T170000
DTEND;TZID=America/Chicago:20100619T220000
DTSTAMP:20260527T154019Z
CREATED:20260527T154019Z
LAST-MODIFIED:20260527T154019Z
UID:13640-1276966800-1276984800@www.stlacs.org
SUMMARY:6th Annual Section Picnic
DESCRIPTION:Bring the family! Just $5 per person. Kids under 12 free.\nPlease reserve by June 14th so we can plan for food and drink\, and crowd control. \nQuestions and reservations to: \nBill Doub\n1430 Neffwold Ln.\nKirkwood\, MO 63122-7004\nphone: (314) 651-7514\nucr1975@SigmaXi.net
URL:https://www.stlacs.org/event/6th-annual-section-picnic/
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