Globe Scientific Diamond® PureFlow™ Syringe Filters provide high-quality, cost-effective filtration systems that improve the reliability of experimental results and decrease instrument downtime.

All Diamond PureFlow syringe filters are constructed of a durable polypropylene housing secured around the membrane with a molded polypropylene sealing ring. This double injection molding process yields a robust filter built to withstand pressures higher than most industry alternatives.

Key Features

• High flow rates and low absorption membranes for minimal sample loss
• Color coded outer ring allows easy identification of membrane and filter media type. Each unit is clearly marked with an identifying code to denote port size and membrane material
• Bonded out ring on housing provides strength under higher working pressures for high performance needs
• Integral PP pre-filter for high flow rates and fast filtration
• Manufacturing process certified to ISO 9001 standards

Choose from Sterile or Non-Sterile Filters:

Sterile Diamond PureFlow Syringe Filters satisfy requirements of life science applications for sterilization of solutions or clarification of biological fluids. Sterile filters include a PP microfiber pre-filter layer to improve filtration of particulate-laden fluids that are difficult to filter with single layer syringe filters. Individually packaged in peelable blister with filter diameter, membrane type, and membrane porosity clearly marked on the package. Sterilized by Gamma Irradiation to SAL 10-6.

Non-Sterile Diamond PureFlow Syringe Filters are perfect for use in a wide range of filtration and sample applications where sterility is not needed. Non-sterile filters are used in analytical chemistry for sample preparation, HPLC operations, and protecting analytical equipment from particle contamination. Bulk packaged with filer membrane type and membrane porosity printed on each filter. PP microfiber pre-filter layer to improve filtration of particulate-laden fluids.

Available in a variety of membrane types:

PVDF (Polyvinylidene Fluoride) Hydrophilic/Hydrophobic Membrane

• Low protein binding
• Suitable for aqueous and organic samples
• Good resistance to solvent that exhibit low levels of US absorbing extractables. Broad chemical compatibility
• Ideal for HPLC sample filtration and general biological filtration
• pH range: 1-12

PES (Polyethersulfone) Membrane

• Low protein binding
• Suitable for aqueous and organic samples
• High flow rates and throughput and compatible with high temperature liquids
• Ideal for tissue culture filtration, filtration of proteins and nucleic acids, and chromatography
• pH range: 1-14

MCE (Mixed Cellulose Ester) Membrane

• Low protein binding and biologically inert
• Suitable for aqueous samples
• Ideal for air monitoring, particle analysis, bacteriological analysis, and sterilizing filtration
• pH range: 4-8

Nylon Membrane

• High protein binding – Not used when protein recovery is important
• Suitable for aqueous or organic samples
• Not compatible with acids, bases, or for use in protein recovery
• Ideal for general laboratory, chemical and beverage filtration, and HPLC applications
• pH Range: 2-13

PTFE (Polyetrafluoroethylene) Hydrophilic Membrane

• “Universal” membrane – Ideal for both aqueous and organic samples
• Strong chemical stability and inertia
• Strong acid and alkali solvent filtration
• Chemically resistant to all solvents
• pH range: 1-14

PTFE (Polyetrafluoroethylene) Hydrophobic Membrane

• Strong temperature and chemical conditions
• High durability and fast filtering speed
• Ideal for venting applications, phase separations, and aerosol sampling
• pH Range: 1-12

CA (Cellulose Acetate) Membrane

• Low Protein Binding and biologically inert
• Suitable for aqueous samples
• High protein recovery from filtrate
• Ideal for sample analysis that requires maximum recoveries, tissue culture media filtration, and general water filtration
• pH Range: 4-8

SFCA (Surfactant Free Cellulose Acetate) Membrane

• Low protein binding, low extractables and leachables, and high flow rate
• Ideal for cell culture media and serum, immunological samples, and biological fluids
• pH Range: 4-8