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Citation: GAN Ning, BI Shu-Ping, WEI Zong-Bo. Speciation of Aluminum in Natural Water by A.C.Oscillopolarography Using Chlorosulfophenol-S[J]. Chinese Journal of Applied Chemistry, ;2001, 18(9): 736-740. shu

Speciation of Aluminum in Natural Water by A.C.Oscillopolarography Using Chlorosulfophenol-S

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

Received Date: 30 December 2000
Available Online: 10 April 2001
Fund Project: 国家自然科学基金(ProjectNo.49831005&No.29777013) (ProjectNo.49831005&No.29777013)

A simple and reliable electroanalytical method for the fast determination of different aluminum species(total Al_T, acid soluble Al_r, monomeric Al_a, inorganic monomeric Al_i and organic monomeric Al_o) in natural waters by a.c.oscillopolarography using chlorosulfophenol-S(SCPS) is described.The method was successfully applied to analyze different species of Al in 20 real samples.A program using C language designed by authors was applied to prove the theoretical foundation of the proposed method.The program was also applied to compare three kinds of reagents with different structures to ascertain the optimum pH range for speciation of Al in real water.It is concluded that the complexing ability of a certain reagent with Al mainly depends on the complexing constant and acid dissociation constant K_a, as well as the chemical structure of the ligands.
- Al speciation,
- a.c.oscillopolarography,
- natural waters,
- chlorosulfophenol-S
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