Bond elut™ Cartridge Spe
Bond Elut PSA: Amino Functionalized Chelating Sorbent
• Very effective bidentate ligand • Alternative choice for polar compounds to Bond Elut NH2 • Higher ionic capacity than NH2 Typical Applications Chelation compounds in water and biological samples or organic extracts
Bond Elut PSA is an alkylated amine sorbent that contains two different amino functionalities, one secondary and one primary. This gives a slightly higher pKa and ionic capacity compared to Bond Elut NH2. The PSA functional group is a very effective bidentate ligand and is therefore an excellent sorbent for chelation applications. PSA has a significantly higher carbon load than most amino functional sorbents and thus is a better choice for polar compounds, which retain too strongly on Bond Elut NH2.
Characteristics Primary retention mechanism Weak anion exchange (aqueous matrix), polar (non-polar organic matrix), or chelation Ethylenediamine-N-propyl No Packed bed 7.5 500 40 and 120, irregular 60
Bonded functional group, base material Endcapped Format Typical carbon loading (%) Surface area (m2/g) Particle size (µm), shape Mean pore size (Å)
Bond Elut Jr (100/box) Sorbent Mass 500 mg 1g Bond Elut LRC cartridges (50/box) Sorbent Mass (mg) 100 500 Volume (mL) 10 10 Part No. 12113015 12113041 Part No. 12162042B 12166050B
Bond Elut straight barrel cartridges Sorbent Mass Particle Size μm) 40 40 120 40 40 Volume (mL) 1 1 3 6 12 Quantity (box) 100 100 50 30 20 Part No. 12102077 12102015 12102042 12256140 12256055
See also • Bond Elut NH2, amino bonded silica, page 42 • Bond Elut DEA, excellent extraction of phosphorylated compounds, page 36 • SPEC™ NH2, amino functionalized SPE monolith, page 21
50 mg 100 mg 500 mg 1g 2g
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