Concentration Methods are Posted on Labconco's Website


Labconco Corporation, Kansas City, Missouri, has posted concentration methods on their website to offer assistance in the process of concentrating multiple samples. Labconco offers the CentriVap® Centrifugal Concentrators, RapidVap® Evaporators and FreeZone® Freeze Dryers that perform these processes.

Determining what option will work best for customer samples is the topic in the Concentration of Solutes. Different types of concentration methods including vacuum concentration, nitrogen blow down and freeze dry processes are discussed.

Assessing the Value of Temperature Control talks about heat sensitive samples, such as proteins, and how to evaporate them without denaturing. It also shows the activity that follows if the samples are evaporated using temperature control vs. no control. It points out that a refrigerated unit such as the Refrigerated CentriVap has better activity then that of an ambient model.

Primer on Vacuum Concentration discusses vacuum concentrating and some common issues that users may run into such as "bumping", salt concentration, and another factor dramatically affecting solutes, especially proteins-temperature.

Developing a Vacuum Concentration Protocol helps users develop their own protocol based on the samples they are running. For example, factors to consider when developing a vacuum concentration protocol including solute properties, salt concentration, solvent boiling and freezing points, vacuum pressure, temperature and surface area.

For more information on Concentration Methodology or the CentriVap Centrifugal Concentrators, visit Labconco's website at www.labconco.com or call 800-732-0031.

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