Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MATSUMOTO Mitsuhiro and TAKEDA Kouzou and KIMOTO Seiko and HIRAI Sakiko and UMOTO Fumiaki and NAKAZAWA Kiyoshige,Studies on rapid and high sensitivity measurement methods of ammonium nitrogen in the public waters by ion chromatography,Journal of Environmental Conservation Engineering,03889459,Society of Environmental Conservation Engineering,2006,35,7,518-524,https://cir.nii.ac.jp/crid/1390282679568900992,https://doi.org/10.5956/jriet.35.518