Agilent DB-WAX 40m, 0.18mm, 0.18um 121-7042

The Agilent DB-WAX (part number 121-7042) is a fused‑silica capillary gas chromatography column coated with a high‑polarity DB‑WAX (polyethylene glycol) stationary phase for gas chromatographic separations. It is supplied as a 40 m, 0.18 mm ID column with a 0.18 µm film in a 5‑inch format and an Agilent‑specified operating temperature range of 20 °C to 250/260 °C. Manufacturer and authorized distributor descriptions indicate the DB‑WAX PEG phase is intended for high‑polarity separations and is commonly used for polar/oxygenated analytes, supporting methods that require reliable column‑to‑column performance.

Key Features:

• Length: 40 m
• Inner Diameter (ID): 0.18 mm
• Film Thickness: 0.18 µm
• Phase: DB‑WAX (polyethylene glycol), high polarity
• Capillary tubing: fused silica
• Format: 5 inch
• Operating temperature range: 20 °C – 250/260 °C

Advantages:

• High‑polarity PEG stationary phase provides improved selectivity for polar and oxygenated compounds.
• Narrow bore (0.18 mm) and thin film (0.18 µm) support high chromatographic efficiency and sharper peaks for volatile analytes.
• Low minimum operating temperature (20 °C) facilitates analysis of low‑boiling samples and headspace/SPME applications.
• Manufacture and distributor specifications note bonded/crosslinked chemistry and tight QC for reliable column‑to‑column repeatability.