Editors
Instruction leaflet:
NUCLEOSIL®
RP columns


NUCLEOSIL® C4
Butyl modified silica phases for HPLC
Medium density modification, endcapping · ~ 2 % C · USP L26
Features
Endcapped phases for RP and ion-pairing chromatography
Available pore sizes 120 and 300 Å, particle size 5 µm
Separation mechanism based on hydrophobic (van der Waals) interactions, some residual silanol interactions
Retention times are shorter than on C8 and C18 phases
pH stability at 20 °C: 2–8
For applications click here.


EC standard columns for analytical HPLC
Ordering information
Eluent in column acetonitrile – water
        Length 250 mm   EC guard columns*
NUCLEOSIL® 120-5 C4 · particle size 5 µm, pore size 120 Å, ~ 4 % C    
4.6 mm ID       720096.46   721083.30
NUCLEOSIL® 300-5 C4 · particle size 5 µm, pore size 300 Å, ~ 2 % C    
4 mm ID       720059.40   721916.30
4.6 mm ID       720059.46   721916.30
      Columns/pack 1   3
* EC 4/3 guard column cartridges are used for EC columns of 4 and 4.6 mm ID with the Column Protection System guard column holder (REF 718966).
Custom-packed EC columns with other dimensions are available on request.

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