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Filtration Products
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Waters carries a broad range of Pall Life Sciences filter products. Pall Life Sciences filters have been certified for compliance; which means they have been designed and developed to assist customers in complying with their regulatory and quality objectives. We offer a range of different membranes for solvent and sample compatibility, and a variety of devices for various filtration applications.
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). GHP Acrodiscs - HPLC certified
- Hydrophilic polypropylene membrane offers excellent chemical compatibility and minimizes extractables
- Suitable for aqueous and organic solvents
- Low protein binding
Nylon Acrodiscs - HPLC certified
- Save time, no pre-wetting
- Hydrophilic nylon membrane offers broad chemical compatibility
Acrodisc® LC (PVDF) - HPLC certified
- Hydrophilic PVDF membrane
- Filters both aqueous and organic solvent solutions
Acrodisc® CR (PTFE) - HPLC certified
- Excellent chemical compatibility
- Used for aggressive and organic solvents
| Ion Chromatography (IC) Acrodiscs - IC certified to ensure low ionic backgrounds
- Recommended for aqueous samples only
GHP Acrodisc® GF and Nylon Acrodisc® GF - Designed with a glass fiber prefilter over membrane
- Maximum throughputs for hard-to-filter samples
- HPLC certified
- Binder-free borosilicate glass fiber prefilter
Glass Fiber Acrodiscs - 100% binder-free borosilicate glass fiber filter
- Can be used alone or in series with another Acrodisc®
- deal for prefiltration of 5-100 milliliters of serumSupor® (PES)
- Hydrophilic polyethersulfone
- For biological, pharmaceutical or sterilizing sample
- Can be gamma sterilized or autoclaved
| | 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. |
DYNAMIC SECTION 3 MAKE AJAX CALL
DYNAMIC SECTION 4 MAKE AJAX CALL
DYNAMIC SECTION 5 MAKE AJAX CALL
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