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Catalog No. MN761970.20
Part No. 761970.20
Supplier MACHEREY‑NAGEL
EC HPLC guard column (analytical), NUCLEODUR C18 PAH, 1.8 µm, 4x2 mm
Net Price
Special offer
Availability

6 weeks

PROPERTIES
  • Recommended application(s)
    Guard column, ideal protection for your main column, HPLC
  • Storage temperature
    RT
  • Scope of delivery
    3x analytical HPLC guard columns
  • Hazardous material
    No
  • Method
    HPLC/UHPLC, analytical
  • Brand
    NUCLEODUR
  • Base material
    NUCLEODUR - high purity silica
  • Phase
    NUCLEODUR C18 PAH
  • USP listing
    L118
  • Surface chemistry
    Special octadecyl (C18, ODS) modification
  • Mode
    Reversed phase (RP)
  • Type
    EC HPLC guard column (analytical)
  • Hardware
    Stainless steel
  • Column length
    4 mm
  • Column inner diameter
    2 mm
  • Particle type
    Fully porous particles (FPP)
  • Particle shape
    Spherical
  • Particle size
    1.8 µm
  • Eluent in HPLC column
    Acetonitrile – water (70/30, v/v)
  • Endcapped
    Yes
  • Carbon content
    Not available or proprietary
  • pH stability
    2.0–8.0
  • Pore size
    110 Å
  • Specific surface according to BET
    340 m²/g
  • Temperature stability (max)
    60 °C
  • Pressure stability (max)
    900 bar
DESCRIPTION
For protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.
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