Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OHZEKI Kunio and SAKUMA Toshiaki and KAMBARA Tomihito,Ion exchanger colorimetry by means of a coagulated material composed of finely divided anion and cation exchange resins,BUNSEKI KAGAKU,05251931,The Japan Society for Analytical Chemistry,1979,28,11,713-714,https://cir.nii.ac.jp/crid/1390282679030338432,https://doi.org/10.2116/bunsekikagaku.28.11_713