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Catalog No. MN721158.30
Part No. 721158.30
Supplier MACHEREY‑NAGEL
EC HPLC guard column (analytical), NUCLEOSIL 100-5 N(CH₃)₂, 5 µm, 4x3 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, analytical
  • Brand
    NUCLEOSIL
  • Base material
    NUCLEOSIL - the standard silica
  • Phase
    NUCLEOSIL 100-5 N(CH₃)₂
  • USP listing
    Not available or proprietary
  • Surface chemistry
    Dimethylamino (DMA, N(CH3)2) modification
  • Mode
    Ion exchange (IEX), Normal phase (NP)
  • Type
    EC HPLC guard column (analytical)
  • Hardware
    Stainless steel
  • Column length
    4 mm
  • Column inner diameter
    3 mm
  • Particle type
    Fully porous particles (FPP)
  • Particle shape
    Spherical
  • Particle size
    5 µm
  • Eluent in HPLC column
    n-heptane
  • Endcapped
    No
  • Carbon content
    4.0 %
  • pH stability
    2.0–8.0
  • Pore size
    100 Å
  • Specific surface according to BET
    350 m²/g
  • Temperature stability (max)
    60 °C
  • Pressure stability (max)
    400 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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