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Syringeless filters, UniPrep™, Whatman™

Supplier: Whatman (GE Healthcare)
Whatman™ UniPrep™
Preassembled devices for the filtration and storage of laboratory samples. Device consists of a 5 ml outer test tube and a filter plunger with cap. The sample is placed in the outer tube and the plunger is pressed through the liquid. Positive pressure forces the filtrate up into the reservoir of the filter plunger, which can then be capped for sample storage. Filtered samples can be decanted into an autosampler vial or can be removed by drawing into a syringe for manual injection.

Nylon: Naturally hydrophilic for filtration of samples containing aqueous or organic solvents with a pH range of 3 - 10.

PVDF: Low protein binding membrane for filtration of samples with aqueous or aqueous/organic solvent composition.

PTFE: Chemically inert PTFE membrane for filtration of samples containing >50% organic solvent.

GMF: Layered glass microfibre depth filter for use with samples containing aqueous or organic solvents.

Volume hold up: 50 µl



Expand All / Collapse All
Membrane Pore size Filtration area Capacity Pk VWR Catalog Number Quantity
Nylon 0,2 µm 0,3 cm² 1 - 5 ml 50 514-0127
Nylon 0,45 µm 0,3 cm² 1 - 5 ml 50 514-0129
PVDF 0,2 µm 0,3 cm² 1 - 5 ml 50 514-0126
PVDF 0,45 µm 0,3 cm² 1 - 5 ml 50 514-0128
PVDF 0,45 µm 0,3 cm² 1 - 5 ml 1.000 516-0675
PTFE 0,2 µm 0,3 cm² 1 - 5 ml 50 514-0573
PTFE 0,45 µm 0,3 cm² 1 - 5 ml 50 514-0130
PTFE 0,45 µm 0,3 cm² 1 - 5 ml 1.000 516-0674
GMF 0,45 µm 0,3 cm² 1 - 5 ml 50 514-0574
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