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  1. Chromservis
  2. Chromatography
  3. Stationary phases
  4. SPE
  5. SPE Phases
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Chromatography

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        SPE Phases

        SPE kolonky

        This site encloses SPE phases overview includint their technical parameters. Further information about the products are available in the product catalogue.

        Clean up SPE columns

        Reverse phase hydrophobic

        Phase Pore volume (cm3/g) Pore Size (A) Surface Area (m2/g) Carbon Load (%) End Capping Feature
        C2 Ethyl 0.77 60 500 6.6 YES/NO
        C4 n-Butyl 0.77 60 500 8.5 YES
        C8 Octyl 0.77 60 500 11.1 YES/NO
        C18 Octadecyl 0.77 60 500 21.7 YES/NO
        C30 Tricontyl 0.77 60 500 20.0 YES
        Cyclohexyl 0.77 60 500 11.6 YES/NO
        Phenyl 0.77 60 500 11.0 YES/NO

        Normal phase hydrophilic

        Phase Pore volume (cm3/g) Pore Size (A) Surface Area (m2/g) Carbon Load (%) Feature
        Silica 0.77 60 500 N/A
        Diol 0.99 60 500 8.0
        Cyanopropyl 0.77 60 500 9.0
        Florisil 0.82 60 500 N/A
        Alumina, Acidic 60 500 N/A
        Alumina, Basic 60 500 N/A
        Alumina, Neutral 60 500 N/A
        Carbon N/A 120/140 mesh

        Ion Exchange - Anion Exchange

        Phase Pore volume (cm3/g) pKa Pore Size (A) Surface Area (m2/g) Carbon Load (%) Exchange (meq/g)
        Aminopropyl (1 amine) 0.77 9.8 60 500 6.65 0.31
        N-2 Aminoethyl (1/2 amine) 0.77 10.1; 10.9 60 500 11.1 0.32
        Diethylamino (3 amine) 0.77 10.6 60 500 10.6 0.28
        Quarternary Amine Chloride 0.77 Always charged 60 500 8.4 0.25
        Quarternary Amine Hydroxide 0.77 Always charged 60 500 8.4 0.25
        Quarternary Amine Acetate 0.77 Always charged 60 500 8.4 0.25
        Quarternary Amine Formate 0.77 Always charged 60 500 8.4 0.25
        Polyimine 0.77 Always charged 13.5 0.25

        Ion Exchange - Cation Exchange

        Phase Pore volume (cm3/g) pKa Pore Size (A) Surface Area (m2/g) Carbon Load (%) Exchange (meq/g)
        Carboxylic Acid 0.77 4.8 60 500 9.2 0.17
        Propylsulfonic Acid 0.77 1 60 500 7.1 0.18
        Benzenesulfonic Acid 0.77 Always charged 60 500 11.0 0.32
        Benzenesulfonic Acid, High Load 0.77 Always charged 60 500 15.0 0.65
        Triacetic Acid 0.77 60 500 7.61 Anion 0.17/Cation 0.06

        Copolymeric phases

        Phase Pore volume (cm3/g) pKa Pore Size (A) Surface Area (m2/g) Carbon Load (%) Exchange (meq/g)
        Aminopropyl + C8 0.77 9,8 60 500 12,3 0,163
        Quarternary Amine + C8 0.77 Always charged 60 500 13,6 0,160
        Carboxylic Acid + C8 0.77 4,8 60 500 2,5 0,105
        Propylsulfonic Acid + C8 0.77 1 60 500 14,62 0,114
        Benzenesulfonic Acid + C8 0,77 Always charged 60 500 12.3 0,072
        Cyanopropyl + C8 0,77 N/A 60 500 14,6 0,163
        Cyclohexyl + C8 0.77 N/A 60 500 N/A N/A