Introduction
Retains strong acids, polar compounds and metal ions, suitable for purifying food substrates
PSA (ethylenediamine-N-propyl) filler is similar to NH2, with weak anion exchange and normal phase retention. The two
amino groups of PSA (pKa of 10.1 and 10.9 respectively) provide greater ion exchange capacity and can extract polar
compounds through hydrogen bonds. In addition, PSA forms complexes with metal ions, which can retain some metal ions.
Typical advantages
1. Larger exchange capacity than NH2.
2. Effectively remove many interfering components in food.
PSA (ethylenediamine-N-propyl) filler is similar to NH2, with weak anion exchange and normal phase retention. The two
amino groups of PSA (pKa of 10.1 and 10.9 respectively) provide greater ion exchange capacity and can extract polar
compounds through hydrogen bonds. In addition, PSA forms complexes with metal ions, which can retain some metal ions.
Typical advantages
1. Larger exchange capacity than NH2.
2. Effectively remove many interfering components in food.
General Information
| Storage instruction | Store at room temperature |
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| Appearance |
powder |
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| Carbon content |
8% |
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| Surface area |
500 m2/g |
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|
Particle size |
20-35 μm；40-63 μm；50-75 μm |
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| Average pore diameter |
100 Å |
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