Collaborative study to improve the quality control of trace element determinations in polymers. Part 2. Certification of polyethylene reference materials (CRMs 680 and 681) for As, Br, Cd, Cl, Cr, Hg, Pb, and S content
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Collaborative study to improve the quality control of trace element determinations in polymers. Part 2. Certification of polyethylene reference materials (CRMs 680 and 681) for As, Br, Cd, Cl, Cr, Hg, Pb, and S content