Waters carries a broad line of Pall Life Sciences laboratory filters for sample and solvent filtration including:
The line includes a wide selection of membrane types and pore sizes to deliver the right lab filter for any sample type. A broad range of device sizes ensures complete sample filtration with minimal sample loss. The filter selector makes it easy to select the right lab filter for any application. See the lab filter selector demo on the right side of this page.
Not sure which filter to use? Use our Filter Selector to help you choose the best filter for your analysis.
Pall Life Sciences broad range of device sizes assures complete sample filtration with minimal sample loss. In addition, many Acrodisc® syringe filters offer the option of a minispike outlet, rather than the traditional male luer outlet. The minispike outlet, available on 13 mm PTFE, Nylon, GH Polypro and PVDF Acrodisc® syringe filters, allows for easy dispensing into autosampler vials.
Membrane Type (PTFE, GHP, PVDF, Nylon) — Typically, the first step in selecting a suitable filter is to choose a membrane that is chemically compatible with the sample (see chart opposite). For aqueous samples, it is preferable to use a hydrophilic membrane (GHP, PVDF or Nylon) versus a hydrophobic membrane (PTFE). With proteinaceous samples, a low protein binding filter (GHP or PVDF) is preferable to other hydrophilic filters (Nylon).
Acrodisc® LC (PVDF)
Acrodisc® CR (PTFE)
Ion Chromatography (IC) Acrodiscs
GHP Acrodisc® GF and Nylon Acrodisc® GF
Glass Fiber Acrodiscs
|Pore Size (0.2 and 0.45 µm) — The filter pore size is usually a personal preference of the chromatographer, but relates to the column packing material. Since there are many different packing materials, a general guideline is that most customers find that the 0.45 µm filter meets their requirements, although chromatographers are increasingly moving toward using 0.2 µm filters.|