Price on request
In stock
Can't find what you're looking for?
Used, in good condition
Efficient 2-channel degasser with Teflon AF membrane for semi-preparative HPLC applications.
The KNAUER Online Degasser is a state-of-the-art 2-channel device designed for semi-preparative flow rates up to 50 ml/min. Featuring an innovative Teflon AF fluoropolymer membrane, it is over 200 times more gas permeable than standard Teflon, offering superior physical and chemical stability. Its high efficiency allows reduced internal chamber volumes, with less than 7.7 ml per channel. Ideal for isocratic HPLC, its chambers can be connected in series for optimal degassing. In gradient applications, it can simultaneously degas up to 2 eluents. Additionally, the system accommodates various HPLC setups with a single unit. It is designed to expedite reconditioning and minimize solvent waste, thanks to its low dead volume. This equipment offers broad chemical compatibility for general HPLC use, ensuring zero hysteresis even at higher flow rates. There is no need for valve replacements in continuous operation, and it effectively prevents air bubbles in the chromatogram, stabilizes retention time, resolves gradient reproducibility issues, and minimizes unwanted interference, such as chromophore formation, oxidation, reduction, and fluorescence quenching. Technical Data:
Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.
We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.
We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.
With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.
Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.
Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.
Two to six weeks, depending on refurbishment scope and whether calibration is included.
We ship to 38 countries. Crating and customs handling are quoted with the instrument.
Tell us what you need and a scientist finds it for you, usually within the hour.
Last updated 24 October 2026
The middle half of the 85 with a price runs from €125 to €4,997.
