PES Syringeless Filter Vials, 0.45um, 32mm, Dark Green, Nonsterile, 100/Pk
GVS SKU: MV32ANPPS004WC01

Featuring a hydrophilic polyethersulfone (PES) membrane sealed inside a one-step sample preparation device, these syringeless filter vials integrate a self-sampling system, membrane chamber, and precut septa cap into a single unit. The 0.45 micron PES membrane delivers low protein and drug binding while removing particulates, and the design replaces the separate syringe, syringe filter, glass vial, and cap used in traditional workflows. Sample liquid is placed in the outer vial and dispensed by pressing the inner insert, pushing it through the membrane so the filtered sample is ready to load directly into an autosampler.

Key PES Membrane Characteristics

• Naturally hydrophilic polyethersulfone membrane with a 0.45 micron pore size for sample clarification and particulate removal
• Low protein and drug binding helps preserve analyte concentration and sample integrity
• High strength and durability with broad chemical compatibility, well suited to buffers and culture media
• Designed to remove particulates ahead of analytical instrumentation

Key Construction Characteristics

• Polypropylene housing with PTFE and silicone septa
• Precut (pre-slit) septa cap ensures easy and clean sample transfer
• Vial dimensions of 12 x 32 mm with a 480 microliter internal chamber volume and 450 microliter filtering capacity
• Nonsterile, supplied 100 per pack, in dark green
• Maximum operating temperature of 50 degrees C (120 degrees F)

This all-in-vial format streamlines sample preparation while reducing the handling steps and consumables associated with conventional syringe filtration. The single-step plunger action minimizes sample loss and supports consistent, reliable results. Compatibility with most autosamplers and multi-compressors makes it well suited to high-throughput laboratories.

Capacity

Filtering capacity 450 uL; chamber volume 480 uL

Color

Dark Green

Construction

Polypropylene housing with PTFE and silicone septa

Diameter

32 mm

Dimensions (W x D x H)

12 x 32 mm

Holdup Volume

30 uL

Material

Polyethersulfone (PES)

Maximum Operating Temperature (°C)

50

Pack Count

100

Pore Size (µm)

0.45

Septa Material

PTFE and silicone

Sterility

Nonsterile

Vial Cap Type

Precut (pre-slit) septa cap

Wettability

Hydrophilic

• HPLC and GC Sample Preparation The 0.45 micron PES membrane clarifies samples and removes particulates before injection, protecting analytical columns and instrumentation.
• Autosampler-Ready Filtration The precut septa cap and 32 mm format allow filtered vials to load directly into most autosamplers without transfer steps.
• Buffer and Culture Media Clarification Hydrophilic PES with broad chemical compatibility is well suited to filtering buffers and tissue culture media.
• Particulate Removal The membrane removes particulates from aqueous and compatible samples to improve downstream analytical reproducibility.
• Low-Loss Sample Prep The single-step plunger design minimizes sample loss, supporting work with limited or costly samples.
• Protein-Sensitive Filtration Low protein and drug binding helps maintain analyte concentration in biological and pharmaceutical samples.