Cytiva's Whatman GD/XP disposable syringe filter, a modification of the GD/X line, uses a polypropylene prefilter stack, making GD/XP suitable for samples that require inorganic ion analysis.

• Incorporates a two-layer polypropylene prefilter stack rather than a multi-layer glass fiber stack to minimize levels of ion extractables
• Extremely low protein binding filter
• High loading volume for filtration of challenging samples

The Whatman GD/XP disposable syringe filter from Cytiva's business has several different membrane material options. These include: nylon polyvinylidene difluoride (PVDF) polytetrafluoroethylene (PTFE) polypropylene – membrane or depth filter media Polyethersulfone (PES).

Applications: HPLC sample preparation. Trace metal analysis. Sample preparation prior to determination of dissolved heavy metals.