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 video on the right side of this page.
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, wwPTFE, 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). For aqueous samples, it is preferable to use a hydrophilic membrane (wwPTFE, PVDF, or Nylon) versus a hydrophobic membrane (PTFE). With proteinaceous samples, a low protein binding filter (wwPTFE or PVDF) is preferable to other hydrophilic filters (Nylon).
Acrodisc LC (PVDF)
Acrodisc CR (PTFE)
Ion Chromatography (IC) Acrodiscs
wwPTFE Acrodisc GxF, 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.|