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LiChrospher® PAH 4-4 LiChroCART® HPLC Guard Columns 10/Pkg, 150 Å, 5 μm, 4 x 4 mm - 150148

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LiChrospher® PAH LiChroCART®

Inner Diameter (I.D.): 4 mm
Length: 4 mm
Package Contents: 10 pieces


LiChrospher® PAH is a highly efficient and selective 
HPLC column especially designed for the high-resolution 
separation of 16 PAH (polycyclic aromatic hydrocarbons) 
according to EPA 610 and 550 + benzo(e)pyrene + 
perylene.

Polycyclic aromatic hydrocarbons (PAH) originate 
from organic material through pyrolysis or incomplete 
combustion. The main sources are the exhaust fumes of 
private and industrial furnaces, car exhaust and tobacco 
smoke. Since some PAH are carcinogenic, their determination 
is of great importance.

LiChrospher® PAH is based on an RP-18 silica gel special 
modified to achieve highly resolved PAH separations. 
LiChrospher® PAH can be used for both the isocratic 
separation of 6 PAH according to the German DIN draft 
method and the gradient separation of 16 PAH according
to EPA + benzo(e)pyrene + perylene.

Benefits of LiChrospher® PAH
  • baseline separation at 25° or 20°C by gradient HPLC (esp.: benzo(e)pyrene, benzo(b)fluoranthene and perylene)
  • programmed fluorescence detection
  • first-eluting PAH (naphthalene) at approx. 10 minutes
  • separation within 30 minutes
  • simple eluents and gradients
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 LiChrospher® PAH

Sorbent characteristics:Particles of silica with octadecyl derivative
Particle shape: spherical
Particle size: 5 μm
Pore size: 150 Å (15 nm)
Pore volume: 200 m2/g
Specific surface area: 350 m2/g
Carbon load:
20%
Coverage of the surface: 3.61 μmol/m2
Efficiency: 55,000 N/m; 20,000 N/m
pH range: pH 2-7.5
Shipping eluent: Acetonitrile/Water

  • Model: 1.50148.0001
  • Manufactured by: Merck Chemicals

Product 117/153

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