Easily list your scientific equipment
Top suppliers for laboratory & industry
New and used instruments
Knauer 2 Channel Semi-Preparative Online Degasser
The Knauer Online Degasser, a pre-owned, 2-channel system, is meticulously engineered for semi-preparative flow rates of up to 50 ml/min. At the heart of its design lies the cutting-edge Teflon AF fluoropolymer degassing membrane. Boasting over 200 times the gas permeability of standard Teflon, this membrane ensures excellent physical and chemical stability, enhancing system performance and reliability.
Its superior efficiency enables a reduced internal chamber volume of less than 7.7 ml per channel, optimizing the degassing process. For isocratic HPLC applications, the two chambers can be linked in series, delivering peak degassing efficiency. In gradient applications, simultaneous degassing of up to two eluents is feasible, while specialized applications may utilize a single degasser across multiple HPLC systems. The low dead volume ensures rapid reconditioning and minimizes solvent waste.
Key features include broad chemical compatibility suitable for general HPLC operations, zero hysteresis at higher flow rates, and minimal maintenance requirements—replacing check valves or other components is unnecessary, even under continuous operation. This system effectively prevents air bubble spikes in chromatograms, reduces retention time fluctuations, and resolves gradient reproducibility issues. Additionally, it mitigates the unwanted formation of chromophores that can hinder UV detection, oxidation or reduction interference with electrochemical detection, and fluorescence quenching.
Technical Specifications:
This second-hand system represents an exceptional option for laboratories seeking reliable, advanced degassing capabilities without compromising on performance or efficiency.
QuestPair is a platform to find and acquire laboratory equipment by connecting research organisations, universities, and companies with high-quality, affordable instruments. The platform facilitates multiple sales daily worldwide and works with partners around the globe to provide trusted, vetted products for a wide variety of scientific needs. Our in-house developed AI algorithms collect data on the usage and availability of scientific instruments, enabling us to provide tailor-made assistance in sourcing suitable laboratory equipment. With a focus on cost-effectiveness and sustainability, QuestPair has an excellent track record in streamlining acquisitions for laboratories to further scientific research and development.
Customer Service
Here to help you with: Product Inquiries, Shipping & Support, Technical Support, Business Inquiries and Press.
We are available to assist you Mon-Fri, 10am - 5pm CET.