00000nam 2200000zi 4500 9.879269 CaOODSP 20241203113652 m o d f cr ||||||||||| 190913t19801980oncd #ob f000 0 eng d 0662110773 CaOODSP eng rda CaOODSP eng fre n-cn--- En36-508/67E-PDF En36-508/67E Agemian, Haig, author. Interlaboratory quality control study no. 24 : analysis of eight acid herbicides in natural fresh water / Haig Agemian and A.S.Y. Chau. Analysis of eight acid herbicides in natural fresh water Burlington, Ontario : Inland Waters Directorate, Ontario Region, Water Quality Branch, 1980. ©1980 1 online resource (vii, 9 pages) : graphs. text txt rdacontent computer c rdamedia online resource cr rdacarrier Report series ; no. 67 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references (pages 6-8). "A national interlaboratory quality control study for Canadian laboratories on the determination of eight acid herbicides (MCPA; 2,4-DP; 2,4-D; silvex; MCPB; 2,4,5-T; 2,4-DB; and picloram) in natural fresh water is described. The data show that most laboratories have acceptable expertise for the analysis of silvex; 2,4,5-T; and 2,4-D. No data were reported for MCPB by any laboratory, while only a few participants reported results on MCPA; 2.4-DP; 2,4-DB; and picloram. The overall results indicate that most participants in this study had not attempted the analysis of all eight herbicides. This may reflect the limited expertise in multi-residue analysis of these herbicides in water at the designed concentrations"--Abstract, page v. Includes abstract in French. gccst Herbicides gccst Fresh water gccst Quality control Chau, A. S. Y. (Alfred Shun-Yuen), 1941- author. Canada. Environment Canada. Canada. Inland Waters Directorate. Ontario Region. Water Quality Branch. Report series (Canada. Inland Waters Directorate) no. 67. (CaOODSP)9.862410 PDF 630 KB https://publications.gc.ca/collections/collection_2019/eccc/en36-508/En36-508-67-eng.pdf