Our new inert LC column technology helps labs improve their analysis of metal-sensitive compounds. A premium inert coating applied to the stainless-steel surface of our LC columns reduces nonspecific binding of chelating analytes, enabling sensitive analysis and smooth integration of peaks. Combined with Restek’s selective stationary phases, these new inert LC columns are ideal for the analysis of metal-sensitive compounds, such as organophosphorus pesticides.
Stationary Phase Category: C18, octadecylsilane (L1)
Ligand Type: Sterically protected C18
Particle: 1.8 µm or 2.7 µm superficially porous particle (SPP or “core-shell” particle) silica
Pore Size: 90 Å
Carbon Load: 7% (1.8 µm), 7% (2.7 ?m)
End-Cap: no
Surface Area: 125 m2/g (1.8 µm), 130 m2/g (2.7 µm)
Recommended Usage:
pH Range: 1.0–8.0
Maximum Temperature: 80 °C
1034 bar/15,000 psi* (1.8 ?m), 600 bar/8700 psi (2.7 ?m)
* For maximum lifetime, recommended maximum pressure for 1.8 ?m particles is 830 bar/12,000 psi.
Properties:
- Well-balanced retention profile.
- Sterically protected and acid resistant to resist harsh, low-pH mobile phases.
- Ideal for use with sensitive detectors like mass spec.
When to switch to an ARC-18 column:
- You are analyzing large, multiclass lists by LC-MS/MS.
- Strongly acidic (pH 1–3) mobile phases are required.
Features & Benefits
- Inert LC column technology reduces nonspecific binding of chelating analytes, enabling sensitive analysis and smooth integration of peaks.
- Ideal for the analysis of metal-sensitive compounds, such as organophosphorus pesticides.
- Increased response and analyte recovery, allowing lower detection limits.
- Improved peak shape without passivation or mobile phase additives.
- Part of Restek’s Raptor ARC-18 column line featuring 1.8 and 5 µm SPP core-shell silica.
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