Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MATSUMOTO Ken and KOURA Toshihiro,Analytical Chemistry for Advanced Technologies. Rapid decomposition and analysis of refractory barium sulfate by fusion with ammonium salt.,BUNSEKI KAGAKU,05251931,The Japan Society for Analytical Chemistry,2001,50,12,807-811,https://cir.nii.ac.jp/crid/1390001204051909632,https://doi.org/10.2116/bunsekikagaku.50.807