850-DS 8-Channel Filter Plate 0.45 PES 50/Pk
Whatman SKU: 7707-3200

850-DS Polyethersulfone (PES) Filter Plate, 0.45 µm, 50/Pk - 7707-3200

Parallel filtration across a full plate replaces the manual clarification step and keeps sample handling consistent from the first well to the last. Low-binding PES preserves dilute proteins and analytes in the filtrate while tolerating aqueous buffers, aliphatic alcohols, and glycols and draws aqueous samples through without pre-wetting. Uniform sample quality across every well supports the reproducibility that automated analytical methods depend on for reliable quantitation.

Key Characteristics

• Broad compatibility with aqueous buffers, aliphatic alcohols, glycols, and strong bases
• Absolute pore size rating gives consistent results across protocols
• Stable across the full pH 1 to 14 operating range
• High flow rate with low extractable background for clean preparations
• Naturally hydrophilic surface wets without pre-wetting in aqueous applications

Reproducible separations start with samples that reach the column free of particulates. Upstream sample clarification keeps your separations clean and reproducible from sample preparation through final injection. Call on the Tisch Scientific team to standardize filtration products across your methods with volume pricing and documentation.

Material

Polyethersulfone (PES)

Pore Size (µm)

0.45

Sterility

Nonsterile

Wettability

Hydrophilic

• Unattended Sampling Runs - Single-use plates paired with automated instruments enable clean, hands-off sample collection through a full test.
• Automated Dissolution Sampling - Filtered aliquots pulled from dissolution vessels arrive analysis-ready with no manual clarification step.
• Pharmaceutical Release Testing - Clarified samples meet USP, EP, and JP method requirements for routine QC and batch release workflows.
• Column Protection - Particulate removal before injection guards analytical columns and detectors from fouling and stretches maintenance intervals.
• Analytical Sample Prep - Turbid samples reduce to clean, injection-ready fractions for reproducible chromatographic and spectroscopic assays.
• Pre-Chromatography Clarification - Clarified aliquots reach the autosampler free of particulates, protecting column lifetime across long runs.