0.45um ptfe syringe filter Millex-PTFE Membrane Filter. Plasticizers content in Filter Vials Compared to Syringe FiltersA. Water B. ACN 45-90% with 0.05% TFA. Ballistic Gradient over 1.4 minutes using Aijiren Technology® Acquity® UPLC. SEPARA Syringeless Filter Vials, 0.45µm, Nylon, Blue, 100/CS