ACE C18-AR and C18-PFP - Hplc.eu
ACE C18-AR and C18-PFP - Hplc.eu
ACE C18-AR and C18-PFP - Hplc.eu
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®<strong>ACE</strong>HPLC / UHPLC ColumnsThe Power of π...Scientific Led Stationary Phase Design16Electron Donating Groupseg NH 2 , NR 2 , alkyl, OCH 3OR, CH 3 , Ar etcSi e.g.δ+δ-Electron Rich RingSiC 6 H 6Classic π-πinteractionElectron Withdrawing Groupseg NO 2 , halides, NR 3+ , CO 2 H,CN, CO 2 R, SO 3 H, COH etcSie.g.Fδ-δ-Fδ+Fδ-δ-FFδ-Electron Deficient RingActivity: π-donor (π-base)Activity: π-acceptor (π-acid)How do we exploit these properties for new stationary phases?<strong>C18</strong>+Phenyl = <strong>ACE</strong> ® <strong>C18</strong>-<strong>AR</strong><strong>C18</strong>+<strong>PFP</strong> = <strong>ACE</strong> ® <strong>C18</strong>-<strong>PFP</strong>
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