(0.2 µm filtration step was to ensure no clogging of the UHPLC system. 0.45 µm filtration may be sufficient for HPLC systems.) 

Generally, 0.45 µm porosity filters are used to remove particulates from samples and mobile phase solutions. For sterile-filtration, a 0.20 µm porosity filter 

Phenex-PTFE Syringe Filters, 4 mm dia., 0.45 µm, Non-Sterile, Luer/Slip, 500/Pk. Phenex PTFE. select_all View All Phenex Parts.

Phenex Filter Membranes, Teflon (PTFE), 0.45 µm, 47 mm dia., Non-Sterile, 100/Pk. Filtration Products (General Lab) No Phase.

HPLC/GC. Approved. Phenomenex Phenex syringe filters are manufactured Filter it through a Phenex PTFE 0.45um Syringe Filter (Part No.: AF0-1102-52).

Path (µm). Effective. Syringe Filter. Pore Size (µm). 5. 0.72. 0.45 HPLC, or GC column system from particulate contamination. Select your filter in ...

Free sample micron syringe filter hplc PhenomenexSyringe Filter Pore Size (µm) 5 0.72 0.45 3 0.43 0.20 2.6 0.38 0.20 1.7 0.25 0.20 Column Flow Path 

Syringe filter selection guide for HPLC, UHPLC, and Ion Chromatography using pore Recommended Pore Size, 0.45 μm syringe filter, 0.2 μm syringe filter ...

Phenomenex Phenex syringe filters and Verex vials are a great duo to safely store, transfer, and prepare your most important samples for analysis.