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Solid phase extraction sorbents, specialty chemicals, and chromatographic media

The Selectra line of HPLC columns is created using an ultra-high purity, Type B, spherical silica. This support material minimizes surface activity and allows for high density functional group bonding.

UCT Selectra HPLC columns

UCT Selectra phases

Phase Functional group Endcapped Particle, um Pore, A Carbon, %
C8 C8 Yes 1.8, 3, 5 100 12
C18 C18 Yes 1.8, 3, 5 100 20
C18-AQ (aqueous) C18 Proprietary 1.8, 3, 5 100 10
PFPP Pentafluorophenylpropyl No 1.8, 3, 5 100 11
DA Polyaromatic Yes 1.8, 3, 5 100 13
EtG (aqueous) Proprietary Proprietary 1.8, 3 100 11


- Selectra DA: high degree of retention and selectivity for aromatic and moderately polar analytes that are difficult to resolve on standard C18 phases
- Selectra EtG: designed for maximum retention for polar EtG/EtS (Ethyl glucuronide / Ethyl sulfate) alcohol metabolites

 

UCT SelectraCore phases

Phase Functional group Endcapped Particle, um Pore, A pH range
C18 C18 Yes 2.7 100 2 - 9
PFPP Pentafluorophenylpropyl No 2.7 100 2 - 8
DA Polyaromatic Yes 2.7 100 1.5 - 9