Mechanism of action: PSA
Particle size: 50-75μm
Average pore size: 100 Å
Availability: In Stock
Mechanism of action: PSA
Particle size: 50-75μm
Average pore size: 100 Å
Availability: In Stock
PSA SPE Cartridges
PSA is a polar adsorbent bonded to N-propylethylenediamine (-Si(CH2)3NH(CH2)2NH2) on a high-purity silica gel matrix. It has no terminal group capping. The main retention mechanism is weak anion exchange (water solubility). Polar organic matrix (non-polar organic matrix), and chelation.
Similar to the aminopropyl bond phase of the NH2 SPE cartridge, but the PSA cartridge has two amino groups (primary and secondary amines), and the two amino groups have higher pKa values (10.1 and 10.9, respectively), so the PSA SPE cartridge has a higher ion exchange capacity and stronger ion exchange capacity; at the same time, the bonded phase of PSA as bidentate ligands, which can produce chelation, a chemical reaction useful in metal ion extraction; and because its carbon loading is higher than NH2 adsorbent. Therefore, the polarity of PSA is weaker than that of NH2, and the polar compound which is too strongly retained on the NH2 pillar can be replaced by a PSA cartridge.
Technical Data
Specification | Maximum Sample Load | Volume | Minimum Elution Volume |
---|---|---|---|
50-100mg | 2.5mg-5mg | 1mL | 100-200μL |
100-200mg | 5mg-10mg | 3mL | 200-500μL |
200mg-1g | 10mg-50mg | 6mL | 500μL-6mL |
500mg-2g | 25mg-100mg | 12mL | 3mL-10mL |
Ordering Information
Item No. | Specification | Package (pcs/pk) |
---|---|---|
SLSPE1001PSA | PSA, 50-75μm, 100Å, 100mg/1mL | 100 |
SLSPE2003PSA | PSA, 50-75μm, 100Å, 200mg/3mL | 50 |
SLSPE5003PSA | PSA, 50-75μm, 100Å, 500mg/3mL | 50 |
SLSPE5006PSA | PSA, 50-75μm, 100Å, 500mg/6mL | 30 |
SLSPE1K6PSA | PSA, 50-75μm, 100Å, 1g/6mL | 30 |
SLSPE1K12PSA | PSA, 50-75μm, 100Å, 1g/12mL | 20 |
SLSPE2K12PSA | PSA, 50-75μm, 100Å, 2g/12mL | 20 |
SLSPE502PSA | PSA, 50-75μm, 100Å, 50mg/2mL/w | 96w |
SLSPE1002PSA | PSA, 50-75μm, 100Å, 100mg/2mL/w | 96w |
SLSPE100KPSA | PSA, 50-75μm, 100Å, 100g | bottle |