Determination of total organic chlorine and bromine in water samples by adsorption onto activated carbon and neutron activation analysis |
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| Institution: | 2. Department of Innovation and Technology, FCC Aqualia, Balmes Street, 36, 6thfloor, 08007 Barcelona, Spain;3. Advanced Water Management Centre, The University of Queensland, St Lucia 4072, Australia;1. Department of Chemical and Environmental Engineering, University of Toledo, Toledo, 43606 OH, USA;2. Departamento de Física, MALTA Consolider Team, Instituto Universitario de Materiales y Nanotecnología (IMN), and Instituto Universitario de Estudios Avanzados en Atómica, Molecular y Fotónica (IUdEA), Universidad de La Laguna, 38200 San Cristóbal de La Laguna, Santa Cruz de Tenerife, Spain;1. Jiangsu Key Laboratory of Advanced Laser Materials and Devices, School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, Jiangsu, China;2. Key Lab of In-fiber Integrated Optics, Ministry Education of China, Harbin Engineering University, Harbin 150001, China;1. Earth-Life Science Institute (WPI-ELSI), Tokyo Institute of Technology, 2-12-1-IE-1 Ookayama, Meguro-ku, Tokyo 152-8550, Japan;2. Laboratory of Ocean-Earth Life Evolution Research (OELE), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan;3. Project Team for Development of New-generation Research Protocol for Submarine Resources, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan;4. Research and Development (R&D) Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2-15 Natsushima-cho, Yokosuka 237-0061, Japan;5. Department of Earth Science and Astronomy, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902, Japan;6. Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706, USA;7. Graduate School of Environment and Information Sciences, Yokohama National University, 79-1 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan;8. Department of Earth and Planetary Sciences, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8551, Japan;9. Institute of Geoscience, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan;1. N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Acad. Lavrentiev Ave., 9, Novosibirsk, 630090, Russia;2. Novosibirsk State University, Pirogov Str., 2, Novosibirsk, 630090, Russia;3. Pasteur Institute of Epidemiology and Microbiology, 14 Mira St., 197101, St. Petersburg, Russia |
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| Abstract: | A method was developed for the analysis of total organic chlorine and bromine compounds (TOCl, TOBr) in water samples. The method is based on the adsorption of organic compounds on specially prepared activated carbon. Neutron activation analysis (neutron flux 4·1012 n cm−2 s−1) was used for the quantitative determination of chlorine and bromine.The factors investigated were the adsorption of organic chlorine and bromine compounds on activated carbon, the effect of pH on the adsorption, the removal of chlorine ions from activated carbon by nitrate washing, the amount of activated carbon required, the adsorption time, the potential number of successive adsorptions and the preservation of samples.The detection limits for TOC1 and TOBr were 5 and 0.5 μg 1−1, respectively, when the sample size was 100 ml. |
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