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- EC HPLC guard column (analytical), NUCLEOSHELL RP 18, 5 µm, 4x3 mm
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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Recommended application(s)
HPLC
Particle shape
Spherical
Mode
Reversed phase (RP)
USP listing
L1
Endcapped
Yes
Particle size
5 µm
Pore size
90 Å
pH stability
1.0–11.0
Temperature stability (max)
60 °C
Tmax (phosphate buffer)
40 °C
Pressure stability (max)
600 bar
Hardware
Stainless steel
Surface chemistry
High density octadecyl (C18, ODS) modification
Surface chemistry
Base deactivated (BDS)
Eluent in HPLC column
Acetonitrile – water
Column inner diameter
3 mm
Brand
NUCLEOSHELL
Phase
NUCLEOSHELL RP 18
Pore volume
Not available or proprietary
Specific surface according to BET
90 m²/g
Base material
NUCLEOSHELL - core-shell silica
Particle type
Core-shell, superficially porous particles (SPP)
Carbon content
6.1 %
Recommended application(s)
Guard column, ideal protection for your main column
Method
HPLC, protection
Scope of delivery
3x analytical HPLC guard columns
Column length
4 mm
Type
EC HPLC guard column (analytical)
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