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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. shu

Determination of Aluminum Species in Natural Waters by an a.c. Adsorptive Oscillopolarography

1.
Department of Chemistry, State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing 210093

Corresponding author: Bi Shu-Ping,
Received Date: 16 July 2002
Available Online: 25 October 2002
Fund Project: 国家自然科学基金(20075011) (20075011)

A simple and reliable electroanalytical method is described for the fast determination of aluminum species(total Al_T, acid soluble Al_r, monomeric Al_a, inorganic monomeric Al_i, organic monomeric Al_o) 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.
- aluminium species,
- a.c. oscillopolarography,
- natural waters,
- quercetin,
- hydroxyquinoline-sulfonic acid
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