WM-INOWAX, 30mx0.25mmx0.25µm, II

The WM-INOWAX GC capillary column 30mx0.25mm, 0.25µm, possesses a bonded and crosslinked polyethylene glycol phase of USP phase group G16. Polyethylene glycol phases separate primarily via hydrogen bonding and dipole interactions, so oxygen-containing compounds are strongly retained relative to hydrocarbons of similar boiling point. The crosslinking makes the phase solvent-washable and more thermally robust than a classical wax coating, and in polarity it is comparable with DB-Wax, HP-Innowax, CP-Wax, PE-Wax and Rtx-Wax. WM-INOWAX is used particularly for alcohols, solvents, mineral oil, flavour and fragrance compounds and for fatty acids according to GB 5009.168-2016.

Features and Benefits

• High-performance columns with low bleed
• Standard, MS, HT, and specialty phases
• Nonpolar to highly polar
• WCOT and PLOT versions
• Individual performance testing for each column

Additional Information

The WM series is the high-performance line of the gas chromatography product portfolio and covers demanding routine, GC-MS, and specialty applications. The MS variants feature the same phase chemistry as their respective base phases but are manufactured to stricter specifications, with dedicated surface deactivation and a lower desorption rate. In addition to the classic polysiloxane and wax phases, the series includes application-specific columns tailored to a single analytical method. In PLOT columns, adsorption strength and carrier gas velocity determine the separation, and water in the carrier gas shifts the retention.

Legal Information

WM is a product line of Welch Materials, Inc. The product and phase names mentioned are part of the manufacturer's gas chromatography portfolio.