Enhanced Fluorimetric Determination of Samarium with Dibenzoylmethane and Diphenylguanidine by Gadolinium

I. Hornyák Janus Pannonius University, Department of Experimental Physics, H-7624 Pécs, Ifjúság u. 6., Hungary

J. Erostyák Janus Pannonius University, Department of Experimental Physics, H-7624 Pécs, Ifjúság u. 6., Hungary

A. Buzády Janus Pannonius University, Department of Experimental Physics, H-7624 Pécs, Ifjúság u. 6., Hungary

A. Kaszás Janus Pannonius University, Department of Experimental Physics, H-7624 Pécs, Ifjúság u. 6., Hungary

L. Kozma Janus Pannonius University, Department of Experimental Physics, H-7624 Pécs, Ifjúság u. 6., Hungary

Abstract

The fluorescence of Sm-dibenzoylmethane (DBM)-diphenylguanidine (DPG) system was enhanced by about two to three orders of magnitude when it was excited in the presence of Gd in ethanol-water solution. The excitation and emission wavelegths were 390 nm and 652 nm, respectively. The fluorescence intensity was a linear function of the concentration of Sm in the range of 1.0 × 10⁻⁹–2.0 × 10⁻⁶ M. The fluorescence mechanism of the system is discussed.

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Enhanced Fluorimetric Determination of Samarium with Dibenzoylmethane and Diphenylguanidine by Gadolinium

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Enhanced Fluorimetric Determination of Samarium with Dibenzoylmethane and Diphenylguanidine by Gadolinium

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