Enlist the types of preparative ultracentrifuge. Explain the types in detail.
Answers
the uses described above for preparative and analytical ultracentrifuges, consider your current or future experiments, as well as the kinds of information you’d like to extract. If you’re likely to use the ultracentrifuge for pelleting small particulate materials such as viruses, membranes, and organelles, or smaller particles such as DNA or RNA, then a preparative ultracentrifuge might be best. In addition, preparative ultracentrifuges are well-suited for gradient separations, in which the molecular species in a sample are separated using a substance of graduated density, such as sucrose gradients for proteins or organelles, or cesium gradients for nucleic acids. On the other hand, if you want to examine the mass and shape of macromolecules or protein complexes, or plan to study molecules during the time course of sedimentation, an analytical ultracentrifuge might be more appropriate.