Thermo Fisher, 2200-270, 1PS Phase Separator Filter Paper

Diameter (Metric): 27 mm
Unit Size: Each
Whatman 1PS Phase Separator is a high-grade filter paper impregnated with a stabilised silicone that renders it hydrophobic, retaining the aqueous phase and passing the solvent phase through. In many applications, 1PS can replace the use of separatory funnels. In a typical application, samples are shaken with solvent in stoppered conical flasks or test tubes and the mixed phase simply poured directly into an 1PS circle 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, leaving a solvent phase completely free of the aqueous phase. 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 simultaneously. 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 such that skilled supervision is not required. Water may break through upon prolonged standing.
• Ease of use: No special training required.
• Any number of separations can be processed together.
• Personnel intervention in routine separations kept at a minimum.