WM-PLOT Al2O3/S, 30mx0.32mmx8µm

The WM-PLOT Al2O3/S GC-PLOT column 30mx0.32mm, 8µm, uses a deactivated aluminium oxide layer and is supplied with a narrower bore of 0.32 mm and a thinner layer than the standard version. The deactivation dampens the most active sites of the oxide surface and thereby provides a more reproducible elution order for light hydrocarbons. The exact deactivation salt is not published for the WM variant. WM-PLOT Al2O3/S is used in particular for C1 to C5 hydrocarbons, olefins, paraffins and isomer mixtures in petrochemical gases.

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.