Separation techniques and principles that were used by early gold prospectors are still used today in the mining industry. Some of these methods, transferred to the recycling industry, have ...

(Nanowerk News) Density gradient ultracentrifugation (DGUC), as an effective method for the purification of nanomaterials, has attracted tremendou attentions of researchers. A recent review was ...

This is a preview. Log in through your library . Abstract We have developed a method that separates rat adrenocortical cells by density into populations which retain zone specific properties in ...