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Superspher® 100 RP-18 Endcapped 125-4 LiChroCART® HPLC Cartridge, 4 µm, 4 x 125 mm - 16855

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Superspher® 100 RP-18 Endcapped LiChroCART®

Inner Diameter (I.D.): 4 mm
Length: 125 mm
Package Contents: 1 Cartridge


Superspher®, a high-performance spherical silica carrier with a mean particle size of 4 μm, provides an excellent 
pressure/separation performance ratio in terms of today´s generation of HPLC systems. The number of theoretical 
plates for Superspher® is approx. 100,000 N/m. Thus, Superspher® columns are always the first choice when complex 
mixtures demand high peak capacity. A broad range of modifications on Superspher® is available: non-polarm 
derivatives (RP-8, RP-8 endcapped, RP-18, RP-18 endcapped and RP-select B) and polar derivatives (Si 60).

Superspher® packing materials are available as LiChroCART® cartridges in various lengths and internal diameters 
(4.6 mm, 4 mm, 3 mm and 2 mm). LiChroCART® 3 mm i.d. and 2 mm i.d. narrow bore cartridges for HPLC save costs 
by reducing solvent consumption and allow the handling of very small quantities with excellent sensitivity and 
resolution. LiChroCART® cartridges 4.6 mm, 4 mm i.d., 3 mm i.d. and 2 mm i.d. are compatible with manu-CART® “4”.
This facilitates faster and more flexible method adaptation to smaller bore columns.

With LiChroCART® cartridges the user works with re-usable endfittings which fit different cartridge lengths. 
Since these cartridge holders may remain in the system and the capillary connections do not need to be detached, 
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 Superspher® 100 RP-18 endcapped

Sorbent characteristics: particles of silica with octadecyl derivative
Particle shape: spherical
Particle size: 4 μm
Pore volume: 1.25 mL/g
Specific surface area: 350 m²/g
Carbon load: 21.6% C
Coverage of the surface: 4.09 μmol/m²




  • Model: 1.16855.0001
  • Manufactured by: Merck Chemicals

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