Dietary intake of silicon and nutritional situation of the peoplesinvestigated by the food duplicate method in Japan, China and Korea

对日本、中国和韩国的成人和儿童进行了硅和其他元素的膳食摄入量调查。为此，收集了24小时食品重复样本。采用等离子体发射光谱法、原子吸收光谱法和等离子体质谱法对样品中的矿物进行了测定。(1)日本、中国和韩国的饮用水中硅的浓度在家庭和地区之间存在较大差异。研究结果将被认为对膳食硅的摄入量有很大影响。(2)中、韩两国幼儿园幼儿指甲中硅等元素浓度差异较大。

Dietary intake of silicon and other elements were investigated for the adult and childereninhabitants in Japan, Chaina and Korea. For this purpose, 24-hour food duplicate sampleswere collected. The minerals in each sapmle were instrumentally measured by use ofICP-AES,AAS and ICP-MS.(1)There was a wide variation of silicon concentrations of thedrinking water by home and region respectively among Japan, China and Korea. Itsfindings would be considered to be large effects on the dietary silicon intake .(2)Silicon andother element concentration of finger nail for children show a wide variation by each andthe kindergarten in China and Korea.