Agilent DB-XLB 30m, 0.32mm, 0.50u 123-1236

Agilent DB‑XLB part 123-1236 is a fused‑silica capillary GC column coated with the DB‑XLB stationary phase, manufactured for low‑bleed, mid‑polarity separations. It is supplied as a 30 m × 0.32 mm ID column with 0.50 µm film thickness and is designed primarily for GC/MS and confirmation analyses of semivolatile environmental compounds. Typical use cases called out by the manufacturer include analysis and confirmation of pesticides, herbicides, PCBs and PAHs where low bleed and high inertness are required.

Key Features:

• Length: 30 m
• Inner diameter (ID): 0.32 mm
• Film thickness: 0.50 µm
• Phase: DB‑XLB (mid polarity)
• Temperature range: 30 °C to 340/360 °C

Advantages:

• Exceptionally low bleed improves baseline stability and sensitivity for GC/MS applications (manufacturer stated).
• Mid‑polarity DB‑XLB phase offers unique selectivity suited to pesticides, herbicides, PCBs and PAHs (manufacturer stated).
• Excellent inertness for active compounds reduces adsorption and improves peak shape for reactive analytes (manufacturer stated).
• Columns are tested against tight QC specifications and shipped with a performance summary, providing traceable performance data (manufacturer stated).