Beschrijving
b.safe ventilation valve for PFAS analysis is a laboratory venting component free from polyhaloolefins and therefore fully suitable for PFAS analytical workflows. The valve housing is made of polypropylene and carries a UNF 1/4'' 28G thread that mates directly with b.safe Caps. A cover with ventilation opening and Luer-lock connection houses an integrated check valve preceded by a polypropylene membrane of 1 µm pore size, plus an attachable change indicator for simple visual monitoring of filter status. Supplied as a pack of two pieces from manufacturer Bohlender, the unit supports controlled air exchange while limiting particulate ingress into solvent or sample bottles. Typical use is on closed solvent or waste systems in PFAS-sensitive HPLC, LC-MS and sample-preparation setups where halogenated polymer contamination must be avoided. The compact PP construction and standardised UNF interface allow straightforward integration into existing b.safe bottle-cap assemblies without additional adapters.
This article is part of HPLC fittings, tubing & inline filters, in HPLC columns & accessories.
Key features
- Pack size: 2 pc(s)
- Product type: Ventilation valve for PFAS analysis
- Material: Polypropylene (PP)
- Thread: UNF 1/4'' 28G
- Membrane: PP, 1 µm with check valve
- Connection: Luer-lock and ventilation opening
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Questions about b.safe Air Valve PFAS Analytic, UNF 1/4'', (PU=2 pcs.) PP, with connection UNF
What is this article?
b.safe Air Valve PFAS Analytic, UNF 1/4'', (PU=2 pcs.) PP, with connection UNF is the article on this page. Luminix Health distributes Bohlender for laboratory use. It sits in HPLC fittings, tubing & inline filters, inside HPLC columns & accessories, in Chromatografie.
HPLC fittings and tubing are numbered by bore. A wide bore after the column broadens the peaks. Finger-tight and wrench fittings, and stainless against PEEK, are different pressure ratings. An inline filter is the last screen before the column, and it clogs on purpose so the column does not.
An HPLC column is a tube packed, or coated, with a stationary phase. The sample is carried through it by a liquid, and the compounds leave at different times. The phase, the particle size, the length and the internal diameter decide the separation. A guard column is a short sacrificial piece in front of the analytical column. Fittings and tubing have a bore that either preserves the peak or smears it. Compound names follow IUPAC. Data are on PubChem. Method grades often cite the European Pharmacopoeia or USP.
Which category should I open next?
The category is HPLC columns & accessories. The sub-category is HPLC fittings, tubing & inline filters. The catalogue is Chromatografie.
Shelves beside this one are HPLC columns, HPLC guard columns and HPLC accessories.
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When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.