VDS optilab VDSpher PFAS Precolumn Cartridges, 10 x 3.0 mm, pk/5 - VDPFAS030010V

VDS optilab VDSpher PFAS Precolumn Cartridges, 10 x 3.0 mm, pk/5

Product Number: VDPFAS030010V

For per- and polyfluoroalkyl substances (PFAS) analysis, labs often rely on C18 reversed-phase or mixed-mode HPLC/UHPLC columns. VDSpher (manufactured by VDS Optilab) produces a wide variety of spherical silica-based HPLC columns compatible with PFAS workflows, including the popular VDSpher PUR C18-E or VDSpher MS for LC-MS/MS setups.

The primary VDSpher column options used for PFAS include:VDSpher PUR C18-E: Highly retentive, fully porous reversed-phase columns. Excellent for isolating longer-chain PFAS from background matrixes. VDSpher MS Series: Specifically designed for low-bleed and high-sensitivity LC/MS/MS analytics. They are available in smaller particle sizes (e.g., 2.5 μm) for maximum resolution and use high-purity silica to reduce carryover.

The available particle diameters range from 1.8 µm to 55 µm. Bigger-sized particles such as 120 µm diameter can also be delivered upon request. The same selectivity from analytical to preparative chromatography (from UHPLC to preparative HPLC) enables a fast switch-over to a different particle size. For the user, the VDSpher phases permit a target-oriented “upscaling” from analytical HPLC through semi-preparative / preparative HPLC to separation in production scale. Even a “downscaling” of analytical HPLC to UHPLC is simply possible without performing numerous time-consuming tests.

For analytical HPLC the VDSpher phase of choice has a pore size of 100 Å and is suitable for analytes from small to medium molecular weight. In order to analyse larger molecules, VDS optilab offers wide pore silica gels with pore sizes in the range of 150 Å to 1000 Å. For preparative applications through to production scale, 75 Å separation phases are also part of our programme.

Benefit from the advantages of the VDSpher phases product family:

• very good batch-to-batch stability
• wide selectivity spectrum
• very good selectivity
• very high purity of the silica gels
• narrow pore size distribution
• narrow particle size distribution
• high plate numbers