著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Minoru Okumura and Yasushi Seike and Kaoru Fujinaga,In situ Preconcentration Method for Iron(2)in Environmental Water Samples Using Solid Phase Extraction Followed by Spectrophotometric Determination,Analytical Sciences,09106340,Tokyo : Japan Society for Analytical Chemistry,1997-04,13,2,231-235,https://cir.nii.ac.jp/crid/1520009407978982016,