葉菜類中無機成分の原子吸光定量のための試料調製法 : 重量縮分法の提案

概要

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The proposed gravimetric sample reduction with a kitchen mixer was fast, simple, and reliable. A homogeneous and representative aliquot was easily obtained at once with a reduction factor of one hundred or more. The known weight of chopped and frozen sample was taken in a plastic mixer and a roughly equal amounts of water was added and weighed. From the mixed suspension, a minute amounts of aliquot was taken by weight into a sealed Teflon vessel for the decomposition with nitric and perchloric acids at elevated temperature. The sample solution thus obtained was diluted by weight with water and served for flame atomic absorption and emission spectrometric measurements of inorganic constituents in vegetables using one-drop method. The standard solutions were also prepared gravimetrically.
社団法人日本分析化学会の論文
1982-12-05