SPE
GENERAL OVERVIEW
Supleco Guide To SPE
Reversed Phase
(polar liquid phase, nonpolar modified solid phase)
Hydrophobic interactions
- nonpolar-nonpolar interactions
- van der Waals or dispersion forces
Normal Phase
(nonpolar liquid phase, polar modified solid phase)
Hydrophilic interactions
- polar-polar interactions
- hydrogen bonding
- pi-pi interactions
- dipole-dipole interactions
- dipole-induced dipole interactions
Ion Exchange
Electrostatic attraction of charged group on compound to a charged group on the sorbent’s surface
Adsorption
(interactions of compounds with unmodified materials)
Hydrophobic and hydrophilic interactions may apply
Depends on which solid phase is used
Solid Phase Extraction (SPE) - Available SPE Formats
Straight Barrel Bond Elut Cartridge
Mega Bond Elut
Bond Elut Jr.
Bond Elut LRC
Packed Bed 96-Well Plate
Empore Disk
Empore Disk Cartridge
Empore Disk Plate
Prospekt Cartridge
Bulk Sorbent
Flash Columns
SPEC
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