The 4 mm size is for samples under 2 mL. PP housing with Luer fittings. GHP - hydrophilic PP membrane suitable for both aqueous and organic samples 

samples Extends membrane life when filtering viscous solutions Syringe Filter Syringe Filters provide extremely low dead volume of less than 10ul, ...

Sep 19, 2018 Kit for 5 samples ... Millex®-GV hydrophilic 0.22 um pore size PVDF membrane ... Filter 100 uL to 1 mL with 10 uL hold-up volume.

They provide cleaner sample extracts by removing interfering materials and fine particles down to the rated pore size. Adding a syringe filtration step prior to 

Pall's GHP (hydrophilic polypropylene) membrane is a universal solvent membrane to reduce confusion with filter selection. Typical solvent filters range in size 

Pall life ScienceS SamPle and Solvent filtration ProductS For sample volumes less than 10 mL, choose a 13 mm diameter Acrodisc filter.

EZFlow Syringe Filter-Sample Prep, 0.22um Hydrophilic PTFE, 25mm rationalization of internal space and low residual rate, thereby reducing sample.

\<10ml sample volume. \<10ul hold-up vo. Pall Filter 4485. Ion Chromatography Acrodisc Syringe Filter 0.45um pore size. 13mm diameter. Supor hydrophilic 

To verify low levels of UV-detectable extractables, representative samples are tested using a highly sensitive HPLC technique. Note: Extractable levels may be