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Cosmosil and Cosmogel HPLC columns and packing materials

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5PE-MS, 5CN-MS Cosmosil Columns

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The COSMOSIL PE-MS columns (phenylethyl functional group) and the COSMOSIL CN-MS columns (cyanopropyl functional group) possess a secondary separation mode (π-π interaction). These columns are highly recommended for situations where a C18 or other alkyl chains cannot separate isomers and other compounds of structural similarity.

Material characteristics

5PE-MS 5CN-MS
Silica gel high purity spherical porous silica
Average particle size 5m
Average pore size approx. 120
Specific surface area approx. 300m/g
Stationary phase phenylethyl group cyanopropyl group
End capping treatment near-perfect treatment
Carbon content approx. 10% approx. 7%
Analysis of mono-substituted benzenes
The COSMOSIL PE-MS shows slightly longer retention time for compounds such as nitrobenzenes, which have electron acceptors, or electron donor compounds (such as anisole). This suggests that COSMOSIL PE-MS may be effective for the analysis of the compounds, which cannot be separated by a C18 column.
Analysis of dinitrobenzenes
COSMOSIL PE-MS and COSMOSIL CN-MS separate those dinitrobenzene isomers which cannot be separated by C18 columns.
Ordering information

COSMOSIL 5PE-MS
PRODUCT NAME SIZE CODE No. END-FITTING
COSMOSIL 5PE-MS Guard Column 4.6mmI.D.10mm 38181-41 Waters type
10mmI.D.20mm 38182-31
COSMOSIL 5PE-MS Packed Column 4.6mmI.D.50mm 38183-21
4.6mmI.D.100mm 38184-11
4.6mmI.D.150mm* 38185-01
4.6mmI.D.250mm* 38186-91
6mmI.D.150mm 38187-81
6mmI.D.250mm 38188-71
COSMOSIL 5PE-MS Packed Column 10mmI.D.250mm 38189-61
20mmI.D.250mm* 38190-21
 
COSMOSIL 5CN-MS
PRODUCT NAME SIZE CODE No. END-FITTING
COSMOSIL 5CN-MS Guard Column 4.6mmI.D.10mm 38231-81 Waters type
10mmI.D.20mm 38232-71
COSMOSIL 5CN-MS Packed Column 4.6mmI.D.50mm 38233-61
4.6mmI.D.100mm 38234-51
4.6mmI.D.100mm 38235-41
4.6mmI.D.250mm* 38236-31
6mmI.D.150mm 38237-21
6mmI.D.250mm 38238-11
COSMOSIL 5CN-MS Packed Column 10mmI.D.250mm 38239-01
20mmI.D.250mm* 38240-61
*Screw in type column is available.
 

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