Filtration Membranes and Paper Products & Reviews

Pyramid (square) folded filter paper is easy to use and saves valuable time when undertaking repetitive or multiple analyses.

Whatman cellulose filter paper grades are now available in a flat, quadrant folded format to fit conical filter funnels.

Grained, with medium fast flow rate and medium retention. A universal filter paper, used for the filtration of extracts, oils, beer, syrups etc.; also applied in filter presses or for the aspiration of liquids.  

Cytiva's Whatman parchment weigh boats are designed so users can collect, transfer, and drop both sample and weighing boat into the acid solution during a Kjeldahl analysis without influencing analytical results.

Grade B-2 Whatman weighing paper from Cytiva dissolves residue-free in acid solution, which is critical in applications such as Kjeldahl analysis of nitrogen in soil.

Cytiva's Grade 2122 weigh paper sheets reliably allow samples to be transferred to scales without adding unwanted substances that could impact analytical results.

Whatman Solvent IFD from Cytiva is a high-flow in-line filter/degasser (IFD) of chemically resistent polypropylene housing and membrane. It connects to an HPLC line to simultaneously filter and degasses during mobile phase preparation.

Cytiva's Whatman PM2.5 PTFE membrane filters are designed for PM2.5 air monitoring. These high-purity, thin filtration devices are sequentially numbered and housed in chemically resistant polypropylene support rings for robotic air sampling.

Cytiva's Roby filter validation kit offers five different Roby automated syringe filters, along with a filter validation protocol and filter selection aid. Tubes of 25 filters are ready for loading into tablet tester systems.

Whatman Puradisc Aqua 30 from Cytiva's business is specifically designed for environmental sample filtration prior to dissolved organic carbon (DOC) and chemical oxygen demand (COD) analysis.