Du sökte efter: Kromatografikolonn

Leverantör: Merck

Beskrivning: Stainless steel Hibar® columns are complete with endfittings. These columns are available with LiChrosorb® sorbents.

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Leverantör: Merck

Beskrivning: Tillverkade av porösa monolitiska kiselstavar med en bimodal porstruktur, vilket ger hög separationseffektivitet vid lågt mottryck. Kolonnerna har lång livslängd inom pH-intervallet 2,5 till 7,5 samt hög matristolerans och analyshastighet. Teknisk information.

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Leverantör: Merck

Beskrivning: Purospher® STAR RP-8 endcapped, like Purospher® STAR RP-18 endcapped, is based on high purity silica and has an almost complete surface coverage. Thus, Purospher® STAR RP-8 provides excellent peak symmetry for acidic, basic and even chelating compounds, highest column efficiency in terms of the number of theoretical plates, and exceptional stability from pH 1,5 to 10,5. In addition, they are ideal for a wide range of applications. As the sorbent is less hydrophobic than Purospher® STAR RP-18 endcapped, analytes will typically elute faster on the C8 phase. Purospher® STAR RP-8 endcapped provides enhanced selectivity for positional isomers and symmetrical peak shapes for strongly basic and less hydrophobic compounds.

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Leverantör: Merck

Beskrivning: The selectivity offered by ZIC®-HILIC is suitable for a wide variety of molecules containing hydrophilic or ionisable functional groups. This includes compounds such as carbohydrates, metabolites, acids and bases, organic and inorganic ions, metal complexes, amino acids, peptides, protein digests, plant and cell extracts, plus much more. Such compounds are normally characterised by a small or negative LogP value and have poor retention on reversed-phase columns.

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Leverantör: Merck

Beskrivning: Stainless steel Hibar® columns are complete with endfittings. These columns are available with Aluspher® sorbents. Ideal for separation of compounds under basic eluents.

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Leverantör: Merck

Beskrivning: Stainless steel LiChroCART® cartridges are available with Chiradex® sorbents. Ideal for separation of enantiomers of different class of substances.

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Leverantör: Merck

Beskrivning: Stainless steel

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Leverantör: Merck

Beskrivning: Purospher® STAR Phenyl HPLC columns show an enhanced selectivity compared to standard alkyl phases. They are the first alternative to RP-8 or RP-18 selectivities for separation of aromatic compounds, fatty acids, purines and pyrimidines due to π-π interactions. The new Purospher® STAR Phenyl columns are based on high purity silica particles providing symmetrical peaks for basic compounds, high stability and excellent reproducibility.

Leverantör: Merck

Beskrivning: Fast method development of complex samples across the pH range from 1,5 to 10,5 with different mobile phases and temperature conditions.
Purospher® STAR RP-18 endcapped HPLC columns are designed for universal use. Basic, neutral and metal-chelating compounds can easily be separated with simple mobile phases – naturally without peak tailing. Thanks to its outstanding performance and stability, Purospher® STAR RP-18 endcapped offers maximum flexibility in method development. Robust methods can be developed over the entire pH range from 1,5 to 10,5. High pH-stability allows the separation of strongly basic compounds with alkaline eluents. The combination of high purity silica, best all-round retention characteristics, outstanding pH stability up to pH 10,5, and suitability for up to 100% aqueous mobile phases, make Purospher® STAR RP-18 endcapped an all-round top performance column, almost universal in its range of applications.

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Leverantör: Merck

Beskrivning: Monolitiska kolonner: en ny era inom kromatografin. Chromolith®-kolonnerna är tillverkade av kisel så befintliga metoder kan enkelt överföras till nya metoder med monolitiska kolonner. Med hjälp av 'Sol-Gel'-teknik kan man tillverka porösa monolitiska kiselstavar. De har en bimodal porstruktur som ger en unik kombination av makroporer och mesoporer.

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Leverantör: Merck

Beskrivning: Stainless steel LiChroCART® cartridges are available with LiChrospher® sorbents. Ideal for separation of compounds under basic eluents.

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Leverantör: Merck

Beskrivning: Stainless steel LiChroCART® cartridges are available with various types of Purospher® sorbents.

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Leverantör: Merck

Beskrivning: Stainless steel LiChroCART® cartridges are available with various types of Purospher® sorbents.

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Leverantör: Merck

Beskrivning: Chromolith® DIOL columns are useful as an intermediate polarity media between C18 and silica. Diol functionalised media is less polar and can have different selectivity. Chromolith® DIOL can be used with a wide range of solvents in both normal and reverse phases. In normal phase mode, the diol phase provides an alternative selectivity compared to silica whilst additionally demonstrating longer retention times that help to obtain separation. In reverse phase mode, compounds such as water-soluble vitamins, sugars or amino acids are easily baseline separated using simple mobile phases. Chromolith® DIOL columns have long lifetimes within pH range of 2,5 to 7,5, high matrix tolerance and speed of analysis.

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Leverantör: Merck

Beskrivning: Stainless steel LiChroCART® cartridges are available with LiChrospher® sorbents. Ideal for separation of compounds under basic eluents.

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Leverantör: Merck

Beskrivning: Stainless steel LiChroCART® cartridges are available with LiChrospher® sorbents. Ideal for separation of compounds under basic eluents.

Säkerhetsdatablad