Mayr, Torsten and Wencel, Dorota and Werner, Tobias (2001) Fluorimetric determination of copper(II) in aqueous solution using lucifer yellow CH as selective metal reagent. FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 371 (1). pp. 44-48. ISSN 0937-0633
Full text not available from this repository. (Request a copy)Abstract
Lucifer yellow CH is shown to be a highly selective fluorescent reagent for the determination of Cu(II) in the mug L-1 concentration range. The fluorophore is statically quenched by Cu(II); the carbohydrazide group was assigned as the complexing part of the dye molecule. A total range of Cu(II) determination from 0.06 mg L-1 (I mu mol L-1d) to 6.3 mg L-1 (100 mu mol L-1) with a limit of detection of 0.019 mg L-1 (0.3 mu mol L-1) was obtained, along with surprisingly high selectivity. There was no interference from alkaline and earth alkaline metal ions. The cross sensitivity to heavy metal ions was evaluated by the separate solution method and by competitive binding experiments. Calibration plots are shown for Cu(II) determination at different pH and the dissociation constant was determined. The application of the reagent was demonstrated by the determination of the Cu(II) content of tap water samples.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | FLUORESCENT CHEMOSENSOR; IONS; HG(II); SENSOR; |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Analytische Chemie, Chemo- und Biosensorik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 13 Dec 2021 06:42 |
| Last Modified: | 13 Dec 2021 06:42 |
| URI: | https://pred.uni-regensburg.de/id/eprint/41131 |
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