Abstract
A simple and rapid preconcentration technique is proposed for the ETA-AAS determination of traces of aluminum in water. Aluminum at µg/1 levels in 100 ml of water sample is converted into an anionic complex with Chro-mazurol B. The anion is collected on a polytetrafluoroethylene (PTFE) membrane filter as an ion-associate with benzyldimethyltetradecylammonium ion (Zeph+) by filtration under suction. The ion-associate on the membrane is eluted in 5 ml of a mixture of ethanol and N,N-dimethylformamide. The aluminum in the concentrate is determined by ETA-AAS. Once the complex is formed, it takes only 5 minutes for the collection and elution of the ion-associate. This technique was applied to the analyses of tap waters.
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Taguchi, S., Tomizawa, K., Hiyoshi, SI. et al. ETA-AAS Determination of Traces of Aluminum in Water after Collection as a Complex with Chromazurol B on a PTFE Membrane Filter. ANAL. SCI. 7 (Suppl 1), 91–94 (1991). https://doi.org/10.2116/analsci.7.Supple_91
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DOI: https://doi.org/10.2116/analsci.7.Supple_91