00000nam 2200000zi 4500 9.876590 CaOODSP 20241203113650 m go d f cr |n||||||||| 190718s1991 onc #otb f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- En13-5/91-107E-PDF Stokker, Yvonne D., author. Dredging quality control study no. 5 (DQC-5) : the analysis of polynuclear aromatic hydrocarbons, PCBs, and toxic trace metals in sediment reference materials in direct-injection solutions / Yvonne D. Stokker and Eleanor A. Kokotich. Burlington, Ontario : National Water Research Institute = Institut national de recherche sur les eaux, [1991] 1 online resource (v, 111 pages). text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 91-107 Digitized edition from print [produced by Environment and Climate Change Canada]. Cover title. Includes bibliographical references (pages 29-31). "This report describes interlaboratory study DQC-5, the fifth in a series of intercomparison studies conducted by the Quality Assurance group at the National Water Research Institute on various organic and in organic parameters pertinent to dredging activities. The purpose of the present study was to evaluate the analytical capability and performance of contract and government laboratories on their analyses of polynuclear aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), and toxic trace metals in naturally contaminated reference sediments and direct-injection solutions. The analytical data submitted by nineteen Canadian laboratories for study DQC-5 were evaluated by various statistical treatments to identify outlying results and to assess laboratory performance with respect to precision, accuracy and bias"--Abstract. gccst Water pollution gccst Sediments gccst Quality control Kokotich, E. A. (Eleanor A.) author. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; 91-107. (CaOODSP)9.844121 PDF 8.35 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-91-107-eng.pdf