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The WM-DB-WAX GC capillary column 30mx0.53mm, 1µm, has a highly polar crosslinked polyethylene glycol phase and is supplied exclusively with a 0.53 mm internal diameter in thick films. The wide bore with thick film accommodates large sample volumes and is suitable for direct injection and simple detection systems. Own specification data are not published for this designation. WM-DB-WAX is used particularly for alcohols, esters, ethers, aldehydes, ketones, flavour compounds and solvents.
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.
WM is a product line of Welch Materials, Inc. The product and phase names mentioned are part of the manufacturer's gas chromatography portfolio.
| Brand | WM |
|---|---|
| Product Type | GC Column |
| Length | 30 m |
| Internal Diameter | 0.53 mm |
| Film Thickness [µm] | 1 µm |
| Chemistry | WAX (WAX MS) |
| Chemistry Producers Term | DB-WAX |
| Country of Origin | People's Republic of China |
| Mode of Separation | Gas Chromatography |