RTK-9304252 - Raptor C18, 1.8µm, 50x2.1mm HPLC Column (UPS L1)

Restek chemists became the first to combine the speed of superficially porous particles (also known as SPP or “core-shell” particles) with the resolution of highly selective USLC technology. This new breed of chromatographic column allows you to more easily achieve peak separation and faster analysis times with existing HPLC and UHPLC instrumentation.

When you need a general-purpose LC column, don't just grab any C18. Choose the speed, efficiency, and long-lasting ruggedness of the Raptor C18. This traditional end-capped C18 offers the highest hydrophobic retention of any Raptor phase, and it is compatible with a wide range of mobile phases from moderately acidic to neutral (pH 2–8). Whether for food safety or environmental or bioanalytical analyses, this phase offers consistently excellent data quality in less time across myriad reversed-phase applications, matrices, and compound classes. To lower costs and improve profitability, you need columns to last longer, data to be reproducible, and existing HPLC and UHPLC instrumentation to run faster. Get there with the only general-purpose C18 that gives you Selectivity Accelerated.

Stationary Phase Category: C18, octadecylsilane (L1) 
Ligand Type: End-capped C18
Particle: 1.8 μm, 2.7 μm, or 5 μm superficially porous silica (SPP or "core-shell")
Pore Size: 90 Å
Carbon Load: 9% (1.8 μm), 7% (2.7 μm), 5% (5 μm)
End-Cap: yes
Surface Area: 125 m2/g (1.8 μm), 130 m2/g (2.7 μm), or 100 m2/g (5 μm)
Recommended Usage:
pH Range: 2.0–8.0
Maximum Temperature: 80 °C
Maximum Pressure: 1,034 bar/15,000 psi* (1.8 μm), 600 bar/8,700 psi (2.7 μm); 400 bar/5,800 psi (5 μm) 

* For maximum lifetime, recommended maximum pressure for 1.8 μm particles is 830 bar/12,000 psi.

Properties:

• Compatible with moderately acidic to neutral mobile phases (pH 2–8).
• Excellent data quality in food, environmental, bioanalytical, and other applications. 
  
  Switch to a C18 when:
• You need a general-purpose column for reversed-phase chromatography.
• You need to increase retention of hydrophobic compounds.