Binding and Transport of Rare Earth Elements by Organic and Iron-Rich Nanocolloids in Alaskan Rivers, as Revealed by Field-Flow Fractionation and ICP-MS

Abstract Water samples were collected from six small rivers in the Yukon River basin in central Alaska to examine the role of nanocolloids (0.5–40 nm) in the dynamics and transport of rare earth elements (REEs) in northern high latitude watersheds influenced by permafrost. Total dissolved ( 40 nm colloids. In a river sampled at higher altitude, the