Exmere

    Classical silica

    Exsil Clasico

    The closest Exsil alternative to Spherisorb – Type A silica for established methods.

    80 / 100 Å208 – 226 m²/g3 – 10 µmType A
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    Exsil Clasico

    Pore size

    80 Å / 100 Å / blend

    Surface area

    208 – 226 m²/g

    Pore volume

    Available on request

    Particle sizes

    3 – 10 µm

    Silica type

    Type A

    Bonded phases

    7

    What is Exsil Clasico

    Exsil Clasico

    Exsil 80 and Exsil 100 are reliable alternatives to Spherisorb, but some phases are no longer close enough for some applications. Exsil Clasico draws on that experience to design the closest alternative to Spherisorb for a limited range of phases.

    Depending on the phase, Clasico is based on 80 Å silica, 100 Å silica or a blend of both.

    Why Exsil Clasico

    Why chromatographers choose Exsil Clasico.

    Closest Spherisorb match

    Capacity factors for ODS-1: k′Clasico = –0.364 + 0.962 k′Spherisorb, R = 0.9989.

    Phase-by-phase mapping

    Clasico for ODS-2, ODS-1, C8 and Nitrile; Exsil 80 or 100 for C1, C6, Amino, Phenyl, SAX and SCX.

    Phases for specific problems

    Other phases can be supplied where the Exsil 80/100 equivalent is not fully compatible.

    Performance evidence

    Performance evidence

    Spherisorb to Exsil mapping

    Recommended alternative for each Spherisorb phase.

    SpherisorbExsil alternative
    ODS-2Clasico ODS-2
    ODS-1Clasico ODS-1
    C8Clasico C8
    NitrileClasico Nitrile
    C1, C6, Amino, Phenyl, SAX, SCXExsil 80 or 100
    ODS-1 ClassicExsil 80 or 100 ODS-1

    Technical characteristics

    Engineered properties.

    Particle sizes3, 5, 8, 10 µm
    Pore size80 Å, 100 Å or blend
    Specific surface area226 m²/g (80 Å), 208 m²/g (100 Å), 217 m²/g (blend)
    Pore volumeAvailable on request
    Silica typeType A
    Base silicaExsil 80 / Exsil 100
    Carbon loadAvailable on request
    MorphologyAvailable on request

    Available modifications

    Bonded phases on Exsil Clasico.

    Reversed phase

    • ODS · L1
    • ODS-1 · L1
    • ODS-2 · L1
    • C8 · L7
    • Phenyl · L11

    Normal phase

    • Nitrile CN · L10
    • Silica · L3
    Explore full bonded-phase portfolio

    Sizes & formats

    Sizes & formats

    Particle sizeScale
    3 µmHigh-throughput analytical
    5 µmRoutine HPLC / QC
    8 µmSemi-preparative
    10 µmPreparative

    FAQ

    Frequently asked questions.

    Next step

    Exsil Clasico enquiry

    Request quotation Contact technical support