ヒジキ〔Sargassum fusiforme (Harvey) Setchell〕の藻体中における集積ヒ素の分布について (第4報)

概要

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In the previous reports^<3, 5, 6)>, we have investigated the distribution of arsenic accumulated by the Hijiki plants harvested along the seashores of nine districts of the Tsushima Archipelago and of three districts of the Goto Archipelago. To investigate the plants grown in other three districts of the Goto Archipelago, we collected Hijiki plants along the seashores of the Goto Archipelago in May 2001. Hijiki plants were separated into several parts such as apexes, leaves, stalks and filamentous holdfasts. After washing them with distilled water, the samples were lyophilized. Arsenic was determined by neutron activation analysis in the nuclear reactor of Research Reactor Institute, Kyoto University. The non-uniformity of the arsenic localization in individual plants along their branches was the same as shown previously, when expressed in μg arsenic per g of wet or dry weight (ppm).
2004-03-01