Liquid process filters are used to separate particles and fluid in a suspension. When selecting a filter, it is important to select the proper filter type to ensure the filter meets the needs and requirements of the system. Filters can come in three basic varieties, namely cartridge filters, clean-in-place filters, and bag filters. Large surface areas in some models prevent pump cavitation, while stainless steel and polymer versions offer chemical compatibility.
Avantor® Hichrom Bottom-of-the-Bottle™, Inlet Solvent Filters
Supplier: Avantor
These filters are made from 100% PEEK.
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Avantor® Hichrom, Inlet Solvent Filters
Supplier: Avantor
These solvent inlet filters are used at the low pressure inlet side of the pump to help protect check valves, injector and column from particulate contamination from the eluent.
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VWR® Hichrom Last Drop™ Inlet Filters
Supplier: Avantor
The Last Drop™ eluent filter utilises a flat element, which sits parallel to the bottom of the reservoir, allowing the filter to draw all but the last 2% of the eluent without drawing air into the system. The filter consists of a 316 stainless steel or PTFE filter element in an inert housing.
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Solvent filter
Supplier: ROBU GLASFILTER
This solvent filter is made of pure borosilicate glass.
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Vacuum-/gas distribution filters, VitraPOR®
Supplier: ROBU GLASFILTER
These filters are suitable for degassing and filtration of solvents e.g. in chromatography.
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Suction filters with PTFE membrane, b.safe
Supplier: Bohlender
Suction Filter with PTFE membrane.
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Suction filters, BOLA
Supplier: Bohlender
These PTFE suction filters consist of a receiver with a female thread and an easily exchangeable frit. They are ideal prefilters in front of pump systems for protecting gaskets, pistons or column packings against premature wearing due to contaminations.
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Inlet filter, Rheodyne®
Supplier: IDEX RHEODYNE
Inlet filters are used to extract particles from the sample between the injector and the column.
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Filter for ultrapure water system, arium® CellPlus
Supplier: Sartorius
The arium® CellPlus is a sterile packed, point-of-use ultrafilter for efficient removal of endotoxins, RNase, DNase, microorganisms and particles. Retrograde contamination is prevented by the protective bell design made up of polycarbonate. It offers high safety for critical cell culture applications.
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Mobile Phase Filters
Supplier: MICROSOLV
Biocompatible, last drop, PEEK and polypropylene mobile phase filters. PTFE filter element and will provide very high filter capacity and throughput while using a maximum amount of solvent. The unique design allows for this flat filter to vacuum up to the last drop of liquid in the reservoir bottle.
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Solvent spargers
Supplier: PerkinElmer
Solvent reservoir sparger, Titanium, Pore size: 10 µm
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Solvent filter/degasser
Supplier: Agilent
It prevents the formation of spurious peaks within the detector due to solvent outgassing at the low-pressure end of the chromatograph.
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Mobile phase inlet filter, Hastelloy® C
Supplier: VARIAN
This mobile phase inlet filter operates up to 500 °C and is compatible with halogenated solvents.
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Safety air outlet filter
Supplier: VICI JOUR RESEARCH
This safety air outlet filter regulates the pressure during helium sparging.
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Inlet solvent filters, Bottom-of-the-Bottle™, Upchurch Scientific®
Supplier: UPCHURCH SCIENTIFIC
Stainless steel, PEEK or UHMWPE
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Last drop mobile phase filters
Supplier: VICI JOUR RESEARCH
With flat filter element which allows the maximum amount of mobile phase to be drawn from the reservoir without introducing air into the system.
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No-Met biocompatible mobile phase filters
Supplier: VICI JOUR RESEARCH
The No-Met polyethylene filter is designed for applications involving the separation of biomolecules, with inert polymeric fittings for 1/8" tubing and a 20 µm filter effectively eliminating metal contamination from the fluid path.
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Safety air inlet valves
Supplier: VICI JOUR RESEARCH
The air inlet valve has a check valve which blocks vapours of the solution in a bottle, preventing the vapours from escaping into the lab. The safety air outlet filter regulates the pressure during helium sparging.
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Inlet solvent filters, Upchurch Scientific®
Supplier: UPCHURCH SCIENTIFIC
Thes filters with stems are 100% 316 stainless steel. Filters with threaded fittings have threaded Kel-F® (PCTFE) caps.
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Mobile phase filters
Supplier: VICI JOUR RESEARCH
These filters made from stainless steel 316L protect HPLC systems from small particles in the mobile phase.
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EasyFrit ES1210 EasySampler Filter Kit
Supplier: Mettler - Toledo
EasyFrit turns EasySampler into a selective solution phase sampling tool for data-rich collection throughout a controlled crystallisation.
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Last drop filters/spargers
Supplier: VICI JOUR RESEARCH
The Last Drop filter/sparger combines filtration and sparging in a single unit. The PTFE housing contains a mobile phase filter with either a stainless steel or PTFE filter element. Connect the solvent line to the stepped connector, which accommodates 1,5, 2,2, and 3,5 mm ID tubing. A 1/4"-28 fitting connector connects a 1/8" helium line connects to the 10 µm sparger. Both connectors are PEEK.