Eppendorf Concentrator aids biomolecule purification

Published: 25-Mar-2008

Eppendorf has introduced a device for the concentration, drying and purification of biomolecules

Eppendorf, a global supplier of systems and research tools for the biotechnology industry, has introduced a device designed to the concentration, drying and purification of biomolecules.The Eppendorf Concentrator features a new LCD display and control panel. It features three concentrator modes as well as centrifuge and integrated dessicator functions.

The Eppendorf Concentrator features a new LCD display and control panel. It features three concentrator modes as well as centrifuge and integrated dessicator functions.

Pre-selection of one of four different heating levels allows optimised drying times for different samples, while three application modes - for aqueous, alcohol or high vapour pressure solvents - provide faster evaporation, reducing processing time by up to 20%.

The dessicator function can be used for fast evaporation of filters with optimised vapour pressure conditions and the 1,400rpm centrifugation function is good for spinning down droplets after re-suspension. Eppendorf supplies 14 different compatible rotors, ranging from 0.2ml PCR tubes to 25ml tubes and increased throughput is possible using two stacked rotors.

According to Peter Schreiner, product manager multipurpose centrifuges, Eppendorf AG, Hamburg: Handling samples up to 240ml, the new Concentrator plus offers a compelling alternative to concentration by freeze drying, rotary evaporation, precipitation or evaporation by nitrogene stream. Target applications are those requiring fast, gentle concentration of DNA, RNA, oligonucleotides and proteins, including small volume and temperature-sensitive samples.

The device is available in two configurations: the basic device or a complete system with integrated service-free diaphragm pump, vapour condenser and optional junction to connect an external device such as a gel dryer. This design saves on bench space.

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