Sample Preparation

Today’s centrifuges are more sophisticated than ever. Consequently, customers can find platforms that fit right into today’s wide range of centrifuge applications. In fact, Nick Horsley, general manager at Hettich Instruments in Beverly, Massachusetts, says, “Centrifuge accessories have become very important.” Those accessories can help a lab select a system that can multitask.

Learning to use evaporation starts very early in chemistry. For students, the process takes a very simple
approach, maybe just putting a solution in a beaker over a flame and waiting. That technique, though,
doesn’t provide the sophistication, control, or throughput that advanced techniques require. Consequently, scientists can use dedicated evaporators.

Centrifuges work on the principle of sedimentation facilitated by an apparent angular force that draws components of a rotating sample away from the center of rotation. Although centrifugation theory is straightforward, its engineering literature is voluminous due to the number of industries and research operations that depend on the operation.

Combinatorial chemistry can be traced back to the 1960's, but didn't gain popularity until 1990 when pharmaceutical companies started compounding large amounts of potential new drugs into libraries. Now, combinatorial chemistry has moved into other disciplines such as materials science, biotechnology and even semiconductors














