This review summaries the application of ion exchangers in the separation and determination of alkali metals, alkali-earth metals, noble metals, rare earth elements and actinoid.
After seeing how this air makes the ugly sagebrush and the patches of alkali and brown earth a feast to the eye, one can understand how the light of heaven may make the ugliest faces beautiful.
The whitey-gray of the alkali-patches, the brown of the dry earth, and the rusty green of the sagebrush filled the foreground, melting in the distance into a purple-gray.