Citation:
Gan Ning, Lei Jian-Ping, Bi Shu-Ping. Determination of Aluminum Species in Natural Waters by an a.c. Adsorptive Oscillopolarography[J]. Chinese Journal of Applied Chemistry,
;2003, 20(2): 103-107.
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A simple and reliable electroanalytical method is described for the fast determination of aluminum species(total AlT, acid soluble Alr, monomeric Ala, inorganic monomeric Ali, organic monomeric Alo) in natural waters by an a.c. oscillopolarography using quercetin(Qu) and 8-hydroxyquinoline-5-sulfonic acid (8-HQS) as complexing adsorbents. In alkaline buffer solution (pH=8.0), 8-HQS was used to determine the total monomeric aluminum, and in acidified buffer solution (pH=5.0), Qu was used to detect the inorganic monomeric aluminum, respectively. This method has been successfully applied in the analysis of Al species in over 10 natural water samples. The results were in good agreement with those obtained by Driscoll's method. SPE program was used to elaborate on the theoretical foundation of the proposed method.
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