<原著>1980年に出生したヒト臍帯中の金属濃度について

概要

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In order to find the harmful metals content levels in human umbilical cord of 39 newborns in 1980,total mercury was analyzed by Zeeman effect atomic absorption spectrophotometry, lead, cadmium, chrome, manganese and copper were analyzed by flameless atomic absorption spectrophotometry, magnesium and zinc were analyzed by flame atomic absorption spectrophotometry, and calcium was analyzed by fluorescent spectrophotometry. 1) The concentration (mean value in dry weight basis) of above stated metals in human umbilical cord was as follows, it was estimated at 0.072 μg/g in total mercury, at 1.567μg/g in lead, at 1.99 μg/g in cadmium, at 0.453 μg/g in chrome, at 1.32 μg/g in manganese, at 2.92 μg/g in Copper, at 422.3 μg/g in magnesium, at 41.2 μg/g in zinc and at 854.5 μg/g in calcium. 2) The concentration of the nine kinds of metals in human male umbilical cord showed about the same level as in the female umbilical cord in wet, dry and ash weigh basis. 3) The metals concentration in human umbilical cord in wet weight basis showed one-tenth value of the concentration in dry weight basis and the metals concentration in ash weight basis showed about nine times as large as the concentration in dry weight basis. 4) Total mercury concentration in human umbilical cord showed about the same level as in adult human skin, arterial wall and gastric wall.
近畿大学の論文
1983-12-25