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  • Title: [Nanometer-size titanium dioxide separation/preconcentration and ICP-AES for the determination of Cd, Co and Zn].
    Author: Shi TQ, Liang P, Li J, Lu HB.
    Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 2005 Mar; 25(3):444-6. PubMed ID: 16013328.
    Abstract:
    The adsorption behavior of Cd, Co and Zn on nanometer-size TiQ2 was investigated. At pH 9.0, Cd, Co and Zn were retained on the nanometer-size TiO2, then eluted with 0.1 mol x L(-1) HNO3 and determined by ICP-AES. The adsorption capacities of nanometer TiO2 were found to be 8.1, 6.9 and 15.1 mg x g(-1) for Cd, Co and Zn respectively. The detection limits (3sigma) for Cd, Co and Zn are 5.1, 3.4 and 2.9 ng x mL(-1) respectively. The proposed method has been applied to the determination of trace Cd, Co and Zn in environmental samples with satisfactory results.
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