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  • Title: [The direct AAS determination of micro elements in hair and nail by base-digestion].
    Author: Ju HF.
    Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 2002 Aug; 22(4):681-4. PubMed ID: 12938399.
    Abstract:
    The study of micro elements is more and more extensively, and people can gain some informations by the level of micro elements in tissue. This paper tempts to dissolve hair or nail in 2 mol.L-1 NaOH and determinate nine micro elements including calcium, zinc, iron, manganese, nickel, cadmium, copper, lead and bismuth in them by base-digestion with FAAS and GFAAS. It shows that the measured value of these elements is coincident with reference articles reported, except bismuth. The elements' percent recoveries are 90.0%-110.8%. The result also shows that the level of zinc and copper in hair are higher than in nail, and the level of bismuth, cadmium and iron in hair are lower than in nail, but the level of micro elements in hair and in nail are not correlative.
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