Normal phase HPLC is a valuable technique for the separation of polar and hydrophilic compounds and for isomer separation. Normal phase HPLC requires a polar stationary phase combined with non or ...
This paper describes a unique Prep-rP-HPLC technique that uses a C-18/C-8 derivatized silica coated with a hydrophobic quaternary ammonium salt or quaternary phosphonium salt that acts as an ...
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