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The colour is formed instantaneously, stabilizes within 20 min, and may be used for the detection of aluminium in the range O.27-54 pm in the presence of EDTA which prevents the interference of most ions.
The detection of aluminium ion is significant due to its potential toxicity, and the correlation between aluminium ion and Alzheimer’s disease.
Test results indicated that the probe had high selectivity towards Al 3+ over other commonly coexisting metal ions.
The interesting changes observed in these studies have been explained in the light of different structural groups of aluminium ions.
They are expected to be due to interstitial aluminium ions.
Book ChapterDOI
01 Jan 2013
10 Citations
Despite its inadequacies, this test is remarkably useful and it is used here to help highlight key differences between magnesium and its sister light metal, aluminium.
These ions do not account for all the aluminium in solution and another species, probably Al8(OH)20(H2O)x4+ is thought to be present.
It appears that the surface of the former may be predominantly of a type which contains aluminium ions in octahedral sites alone.

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