• USA Home
  • WHA2200150 - Whatman® 1PS phase separator filter papers


Whatman® 1PS phase separator filter papers

circles, diam. 150 mm, pack of 100

Synonym: Z689777, phase separation filter papers, separation filter papers

  •  NACRES NB.51



Related Categories Filtration Supplies, Labware, Manufacturer Browser, Phase separation, Sample Preparation,
material   circles
packaging   pack of 100
mfr. no.   Whatman Article No., 28418826 (US reference)
  Whatman, 2200-150
diam.   150 mm


General description

The Whatman 1PS Phase Separator is a high-grade filter paper impregnated with a stabilized silicone that renders it hydrophobic, retaining the aqueous phase and passing the solvent phase through.

Features and Benefits:
• Ease of use – no special training required
• Any number of separations can be processed together
• Staff involvement in routine separations is at a minimum

Automatic Cut-Off, Separatory Funnel Replacement
After being shaken, the mixed phases are simply poured directly into the 1PS circle which is quadrant-folded in a funnel. The separation is extremely rapid so it is unnecessary to wait until the two phases have settled into separate layers. Droplets are automatically separated after only a few moments, giving a solvent phase completely free of the aqueous phase.

In many applications, 1PS can replace the use of separatory funnels. The solvent phase flows through the paper quickly and cleanly. It then stops automatically, leaving the aqueous phase completely in the paper. This feature is particularly important when carrying out a large number of routine solvent extractions at the same time. Samples can be shaken with solvent in stoppered conical flasks or test tubes and transferred directly to funnels containing 1PS.

Unsupervised Separation
A chief benefit of the 1PS method is that cut-off is automatic and complete just as soon as the solvent phase has passed through*. The result is no skilled operators are required.

* Water may break through upon prolonged standing.

Other Notes

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

Legal Information

Whatman is a registered trademark of Cytiva

Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.


Certificate of Analysis (COA)

Please Enter a Lot Number
Protocols & Articles
Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?