Instruction leaflet:
NP columns

Unmodified silica phases for HPLC · USP L3
Spherical silica, pH stability  2–8
Separation mechanism based on polar interactions
Maximum working pressure for EC columns 400 bar

EC standard columns for analytical HPLC
Ordering information
Eluent in column is n-heptane. When using an eluent which is not miscible with n-heptane (e.g., water), it is necessary to rinse the columns with THF first.
        Length 250 mm   EC guard columns*
NUCLEOSIL® 50-5 · particle size 5 µm, pore size 50 Å    
4.6 mm ID       720093.46   721167.30
NUCLEOSIL® 100-5 · particle size 5 µm, pore size 100 Å    
4.6 mm ID       720099.46   721518.30
      Columns / pack 1   3
* EC 4/3 guard column cartridges are used for EC columns of 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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