Pall Minispike Acrodisc Syringe Filters Pall Life Sciences Pvdf Membrane. Combining top-notch and uncompromising quality with an affordable price the Pall Minispike Acrodisc Syringe Filters Pall Life Sciences Pvdf Membrane 4544/ 28143-942 can fulfill your laboratory needs while still offering a great value for the money. Product Category Description: These 13mm syringe filters are ideal for HPLC IC (ion chromatography) and other analytical sample preparations. Small minispike outlet prevents air bubble lock in autosampler vials and NMR tubes. For volumes up to 10mL. Choice of filter media: hydrophobic PTFE membrane for exceptional chemical and temperature compatibility; hydrophilic nylon membrane for excellent chemical compatibility with esters bases and alcohols and no prewetting; GHP (hydrophilic polypropylene) membrane for low protein binding; and hydrophilic PVDF (polyvinylidine fluoride) membrane for use in aqueous and nonaggressive solvent-based mobile phases. PVDF membrane is not for acetone DMF DMSO or bases >6N. All membranes are HPLC certified for low levels of UV-absorbing extractables. Polypropylene housing has female Luer-lock inlet and minispike outlet. Typical hold-up volume: