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    JIN Fang, WANG Hong-bin, WANG Ying. ICP-AES Determination of Potassium, Sodium, Calcium, Magnesium and Sulfate in Carnallite[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART B:CHEMICAL ANALYSIS, 2011, 47(10): 1198-1199.
    Citation: JIN Fang, WANG Hong-bin, WANG Ying. ICP-AES Determination of Potassium, Sodium, Calcium, Magnesium and Sulfate in Carnallite[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART B:CHEMICAL ANALYSIS, 2011, 47(10): 1198-1199.

    ICP-AES Determination of Potassium, Sodium, Calcium, Magnesium and Sulfate in Carnallite

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    • Received Date: August 16, 2010
    • Sample of carnallite was dissolved in distilled water, an aliquot of the sample solution was taken and used for ICP-AES determination of contents of K, Na, Ca, Mg and SO42-. Spectral lines with wavelengths of 766.5, 330.2, 317.9, 279.8 and 181.9 nm were selected as analytical lines for the determination of K, Na, Ca, Mg and S respectively. Detection limits (3s) found were (mg·L-1) 0.8 (K), 1.6 (Na), 0.8 (Ca), 0.8 (Mg) and 2.4 (S). The proposed method was used in the analysis of sample of carnallite, giving values of recovery of the 5 elements in the range of 97.2%-102.1%and values of RSD′s (n=10) less than 3.5%.
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