Cytiva Whatman — Filtration & Sample Preparation

Whatman is Cytiva’s filtration and sample-prep line for clean, consistent separations from routine analysis to regulated bioprocess steps. You get predictable cut-off, low extractables, and broad chemical compatibility across membranes, papers, syringe filters, and devices—so columns last longer and downstream assays stay reliable.

In discovery, QC, or scale-up, Whatman helps you remove particulates, protect instruments, and standardize prep across teams. With clear pore sizes, membrane chemistries, and documentation, you can pick formats that match solvent systems, analytes, and throughput—reducing rework and stabilizing recoveries.

Core Product Categories

Use this as a quick map from task → product family. Start with solvent/analyte and particulate load, then choose membrane chemistry and pore size; finish by selecting the right format for your throughput.

• Syringe Filters (Sample Protection)
  Representative families: Whatman Puradisc, GD/X (high particulate), SPARTAN (hydrophilic PTFE)
  Use cases: LC/LC-MS sample cleanup, buffer clarification, microbial reduction pre-filtration

• Membrane Filters (Disc & Roll)
  Chemistries: PTFE (aggressive solvents), PVDF (protein recovery), Nylon (general purpose), Cellulose Nitrate/Acetate (aqueous)
  Use cases: Solvent/aqueous filtration, HPLC mobile phase prep, sterile filtration (with appropriate ratings)

• Glass Microfiber Filters (GF Series)
  Representative grades: GF/A, GF/B, GF/C
  Use cases: High-load clarification, environmental/air monitoring, pre-filters ahead of 0.2–0.45 µm membranes

• Filter Papers (Analytical & Quantitative)
  Representative grades: Grade 1 (general), Grade 42 (ashless, fine), 934-AH (glass microfibre for suspended solids)
  Use cases: Gravimetric analysis, clarification, precipitation collection, food/pharma QC

• Track-Etched & Nucleopore Polycarbonate
  Features: Precise, cylindrical pores; low protein binding
  Use cases: Particle sizing, microscopy, cell studies, sterility testing workflows

• Blotting & Transfer Membranes
  Representative lines: Protran nitrocellulose, Amersham Hybond PVDF
  Use cases: Western/Northern/Southern blot transfers with consistent binding and background

• Devices & Convenience Formats
  Examples: Mini-UniPrep (vial+filter in one), capsule/inline filters, vacuum manifolds & holders
  Use cases: High-throughput prep, field sampling, rapid method setup

More from Cytiva

When your workflow extends beyond clarification and prep, Cytiva’s other classic brands provide end-to-end coverage—all available via Iright with documentation support.

• ÄKTA — chromatography systems, columns, and UNICORN software for protein purification.

• HyClone — cell culture media, sera, buffers, and process liquids with lot traceability.

• Pall — single-use assemblies and bioprocess filtration for clarification to sterilizing-grade steps.