Whatman GD/XP syringe filters are ideal for use with samples that require inorganic ion analysis, as levels of ion extractables are minimized. They are also an alternative choice for users requiring a filter that exhibits extremely low protein binding characteristics. GD/XP syringe filters contain a two-layer prefilter stack comprised of 20µm and 5 µm polypropylene filters. The last stage of filtration is a choice of membrane, which is positioned below the prefilter stack. 25mm diameter; 0.45µm pore size.
- HPLC sample preparation
- Trace metal analysis