Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleHeterogeneity effects in direct XRF analysis of traces of heavy metals preconcentrated on polyurethane foam sorbents.AuthorsTörök, Szabina; Braun, Tibor; Van Dyck, Peter; van Grieken, RenéPublicationXRS: X-ray Spectrometry, 1986, Vol 15, Issue 1, p7ISSN0049-8246Publication typeArticleDOI10.1002/xrs.1300150104