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  • Title: [Determination of As, Sb, Bi, Cd and Sn in soils and sediments by inductively coupled plasma atomic emission spectrometry after sublimation separation as iodides].
    Author: He HL, Hu MY, Gong AH, Wen HL, Que SJ.
    Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 2008 Mar; 28(3):663-6. PubMed ID: 18536437.
    Abstract:
    A method was developed for the determination of As, Sb, Bi, Cd and Sn in degrees C, iodides of As, Sb, Bi, Cd and Sn were formed and sublimated from the sample matrix and then extracted by diluted HCl. The prepared solution was determined by ICP-AES. The sample treatment procedure, such as the ratio of NH4 I to sample, and sublimation and extraction conditions, was studied. The instrument determination parameters, including ICP power, Ar gas flow rate, spectral wavelengths, background subtraction, spectral interferences correction and internal standard, were selected and optimized. The established procedure is rapid and simple, the detection limits for the five elements are in the range of 0.01-0.35 microg x g(-1), and the analytical results for soil and sediment reference materials were in good agreement with the reference values.
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