00000nam 2200000zi 4500 9.868565 CaOODSP 20241203113646 m o d f cr ||||||||||| 190219s2004 onc #ot f|0| 0 eng d CaOODSP eng rda CaOODSP eng fre n-cn--- En13-5/04-204E-PDF Leppard, Gary G., author. Electron-optical characterization of nano- and micro-particles in raw and treated waters : an overview / Gary G. Leppard, Denis Mavrocordatos and Didier Perret. Burlington, Ontario : National Water Research Institute, Environment Canada, [2004] 1 online resource (8 pages) text txt rdacontent computer c rdamedia online resource cr rdacarrier NWRI contribution ; 04-204 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographic references. "State-of-the-art information is presented on the analysis, by transmission electron microscopy (TEM), of aquatic colloidal particles in the size range of 3 to 500 nm least dimension, with a focus on nano-particles (1-100 nm). Case studies include selections from both natural waters and waters undergoing treatment. The "species" of nano-particles receiving the greatest attention are: humic substances, polysaccharide fibrils, hydrous iron oxides, viruses, clay minerals, refractory cell debris, and heavy metal agglomerates on biological surfaces. Artifacts and how to both detect and minimize them are outlined. Correlative use of TEM with other imaging techniques is emphasized, along with associated spectroscopy. Noted is the potential of computerized image analysis for quantifying colloids on a "per colloid species" basis, using water samples centrifuged onto electron microscope grids"--Abstract. Includes abstract in French. gccst Water management gccst Water pollution Mavrocordatos, Denis, author. Perret, Didier, 1959- author. Canada. Environment Canada. National Water Research Institute (Canada) NWRI contribution ; 04-204. (CaOODSP)9.844121 PDF 1.15 MB https://publications.gc.ca/collections/collection_2019/eccc/en13-5/En13-5-04-204-eng.pdf