Supelco Supel-Select HLB SPE is hydrophilic modified styrene-based polymer developed for the solid-phase extraction of a highly broad range of compounds from aqueous samples.
The retention mechanism is predominately based on reversed-phase interaction. However, because the phase is hydrophilic modified, the phase is also selective for more polar compounds (HLB: Hydrophilic Lipohilic Balance). Examples of more polar compounds that are retained and recovered on Supel-Select HLB include (but are not limited to): pyridoxine (logPo/w -0.56), riboflavin (logPo/w -2.02), biotin (logPo/w 0.11).
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