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  • Title: [Application of internal standardization to rapid coprecipitation technique using APDC-Cu(II) for FAAS determination of lead in salt].
    Author: Su YD, Li J, Huang Y, Chen LW.
    Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 2006 Mar; 26(3):564-6. PubMed ID: 16830782.
    Abstract:
    A method was proposed for the determination of trace lead in salt with flame atomic absorption spectrometry after preconcentration of lead by rapid coprecipitation technique with APDC-Cu(II) using nickel as an internal standard at pH 2.5. The standard addition recovery of lead is between 92%-101%. The detection limit is 3.27 x 10(-3) microg x mL(-1) when the sample volume is 100 mL. The effect of matrix can be overcome by the method, and the results are satisfying. The method proposed here is rapid and has good reproducibility.
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