Agilent DB-35 30m, 0.32mm, 0.25u 123-1932

The Agilent DB-35 (part number 123-1932) is a 30 m fused‑silica capillary gas chromatography column with a 0.32 mm inner diameter and a 0.25 µm film of (35%‑phenyl)-methylpolysiloxane. It is a mid‑polarity, bonded and cross‑linked stationary phase designed for GC separations, offering low bleed and inertness toward active solutes. Typical applications include conformational analyses and separations requiring moderate polarity selectivity.

Key Features:

• Phase: DB-35 (35%‑phenyl‑methylpolysiloxane).
• Length: 30 m.
• Inner Diameter (ID): 0.32 mm.
• Film thickness: 0.25 µm.
• Temperature range: 40 °C to ~300/320 °C (phase-dependent).
• Format: 7‑inch column.

Advantages:

• Low bleed and bonded, cross‑linked coating enhances sensitivity and stability for GC–MS and GC analysis.
• Inert phase chemistry reduces adsorption of active or polar analytes, improving peak shape for challenging compounds.
• Mid‑polarity selectivity makes the column well suited for conformational and aromatic separations where 35% phenyl selectivity is advantageous.
• Solvent‑rinsable and supplied with manufacturer/distributor QC performance data for reproducible results.