1. Institute of Integrated Natural Sciences - Department of Chemistry; University Koblenz - Landau; Universitätsstr. 1 56070 Koblenz Germany
2. Institute of Integrated Natural Sciences - Department of Physics; University Koblenz - Landau; Universitätsstr. 1 56070 Koblenz Germany
3. Institute of Inorganic and Analytical Chemistry; Friedrich-Schiller-University Jena; Humboldtstr. 8 07743 Jena Germany
4. Department of Laser Spectroscopy; University of Applied Sciences Koblenz - RheinAhrCampus; Joseph-Rovan-Allee 2 53424 Remagen Germany
5. Department G2 - Aquatic Chemistry; Federal Institute of Hydrology; Am Mainzer Tor 1 56068 Koblenz Germany
6. Department of Chemistry; Atomic and Mass Spectrometry Research Unit; Ghent University; Campus Sterre, Krijgslaan 281-S12 B-9000 Ghent Belgium
7. Materials Science and Nano-Engineering Department; Mohammed VI Polytechnic University; Lot 660, Hay Moulay Rachid 43150 Benguerir Morocco