著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL International Atomic Energy Agency,Worldwide proficiency test for X ray fluorescence laboratories PTXRFIAEA/5 determination of minor and trace elements in marine sediment,,International Atomic Energy Agency,2009,IAEA analytical quality in nuclear applications,,,,https://cir.nii.ac.jp/crid/1130000794112754048