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Updated: Oct 6, 2026

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging
Published on: July 21, 2011
Extractive analysis of aluminum traces in dialysis solutions
M A Raggi1, C Sabbioni, G C Forti
1Department of Pharmaceutical Sciences, Bologna, Italy. raggima@kaiser.alma.unibo.it
Abstract:
A very sensitive procedure for the fluorimetric determination of aluminum traces in dialysis solutions by means of Mordant Red 19 dyestuff is described with the extraction of the Al complex in isobutylmethylketone. The experimental conditions were studied, in order to obtain the best extraction yield. The emission intensity of the metal chelate, extracted in the organic layer, was measured at 549 nm, exciting at 485 nm. Linearity between emission intensity and Al concentration was found in the 1-30 ng/ml range. The limit of detection was 0.25 ng/ml. The method resulted to be suitable for the determination of Al traces in commercial dialysis solutions for toxicological purposes.
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