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Purospher® RP-18 HC 250-4 LiChroCART® HPLC Cartridge, 90 Å, 5 μm, 4 x 250 mm - 151436

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Purospher® RP-18 HC

Inner Diameter (I.D.): 4 mm
Length: 250 mm
Package Contents: 1 Cartridge


Purospher® RP-18 HC is a non-endcapped stationary phase providing high resolution for the separation of 
explosives and related compounds.

The determination of traces of explosives in soil and water samples in combination with solid-phase extraction is 
of great importance for scenarios like hazardous waste site characterization. With this HPLC column, also microbial 
transformation products of TNT (2-amino-4,6-dinitrotoluene [2-Am-DNT] and 4-amino-2,6-dinitrotoluene 
[4-Am-DNT]) and manufacturing impurities of TNT (2,4-DNT, 2,6-DNT, and 1,3-DNB) could easily be separated from 
each other. Purospher® RP-18 HC is also suitable for the separation of picric acid from hexyl and ethylene glycol 
dinitrate (EGDN) from diethylene glycol nitrate (DEGN).

Purospher® RP-18 HC benefits
  • Separation of polar, non-basic analytes
  • Traces determination of explosives
With LiChroCART® cartridges the user works with re-usable endfittings which fit different cartridge lengths. 
the cartridges may be changed within the shortest possible time. Changing a separation cartridge from a length 
of 125 to 250 mm and back presents no problems. Furthermore, the adaptation of internal diameter (3 mm or 2 mm) 
to the analysis problem is possible within a few minutes. The endfittings are designed to allow the cartridges to be 
hand-sealed at normal working pressures of 150 to 200 bar without the need for any tools. Only at higher pressures 
may further tightening with a wrench become necessary.

With LiChroCART® cartridges the user works with re-usable endfittings which fit different cartridge lengths. 
the cartridges may be changed within the shortest possible time. Changing a separation cartridge from a length 
of 125 to 250 mm and back presents no problems. Furthermore, the adaptation of internal diameter (3 mm or 2 mm) 
to the analysis problem is possible within a few minutes. The endfittings are designed to allow the cartridges to be 
hand-sealed at normal working pressures of 150 to 200 bar without the need for any tools. Only at higher pressures 
may further tightening with a wrench become necessary.


Specifications of Purospher® RP-18 HC

Sorbent characteristics: High-purity silica particles with dedicated RP-18 modification
Particle shape: spherical
Particle size: 5 μm
Pore size: 9 nm (90 Å)
Pore volume: 1.05 mL/g
Specific surface area: 470 m2/g
Carbon load: 18% C
pH range: pH 2 - 8
Shipping eluent: Acetonitrile/Water



  • Model: 1.51436.0001
  • Manufactured by: Merck Chemicals

Product 17/101

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