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Imtakt 3 µm Ultra High resolution HPLC phases


ARC Sciences introduces Imtakt’s NEW 2µm Non Porous HPLC phase, Presto.


Presto is a highly uniform, ultra- pure base silica derivatised with C18. Non Porous RP materials have lower carbon content. Their lack of pores makes them ideal for separating all kinds of bio and synthetic polymers. The lack of pores leads to very rapid mass transfer, improved efficiency, better recovery of solute and much better peak shape due to lack of dispersion.


Presto ODS is different from conventional reverse phase materials and is ideal for proteins, peptides, polysaccharides and large nucleic acids as well as both hydrophillic and hydrophobic synthetic polymers.


As well as showing outstanding peak shape for large molecules, Presto has almost double the peak capacity of 3µm packings for peptide analysis, meaning more information in less time for high coverage peptide LC-MS.


Presto is available packed into a wide range of column dimensions from 0.075mm ID to 20mm and from 250mm length to 3cm.


For more information and a full technical article visit www.arcsciences.com


Speciality Columns for UFLC


NACALAI TESQUE manufactures a range of speciality silica-based columns for UFLC (Ultra Fast Liquid Chromatography). These 2.5µm particle products still provide superior separation, but at significantly lower back


pressure, than sub 2.0µm stationary phases.


COSMOSIL 2.5MS-II is a 2.5µm monomeric C18 phase for multi- purpose separations.


COSMOSIL 2.5Cholester is a 2.5µm cholesteryl bonded phase with similar hydrophobicity to traditional C18 phases but enhanced stereoselectivity, particularly for the resolution of geometric isomers and other closely related compounds.


COSMOSIL 2.5NAP (NEW!) is a 2.5µm phase containing naphthylethyl groups, which form stronger - interactions with unsaturated compounds than phenyl phases. This phase offers


improved separation of compounds such as positional isomers, that are difficult to analyse using alkyl bonded phases.


For further information on any of these UFLC phases or any other COSMOSIL columns, please contact Hichrom on Tel: 0118 930 3660 or e-mail us at technical@hichrom.co.uk


DryLab® 2010 with 3D module >106


Robust regions with R s,crit >1.5 visualized


virtual chromatograms in the DesignSpace T [°C]


pH


tG [min]


- QbD and Design Space in one Software - Automated Data Generation - New Programing Language: C-Sharp (C#) - New Windows Management - New Visualisation of Robustness


For more information contact: www.molnar-institute.com Schneegloeckchenstrasse 47, 10407 Berlin, Germany -  +49 30 421559-0 -  +49 30 421559-99 -  info@molnar-institute.com


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