The extractor enables simple, rapid, multiple element assays and provides {HEAD ~ the new capability} of extracting {TAIL ~ exchangeable ions} from stream, lake, and marine sediments in situ 
of extracting
The extractor enables simple , rapid , multiple element assays and provides { HEAD ~ the new capability } of extracting { TAIL ~ exchangeable ions } from stream , lake , and marine sediments in situ
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH