1. Yuzuncu Yil University; Faculty of Pharmacy, Department of Analytical Chemistry; 65080 Van Turkey
2. Free University of Brussels; ULB, Faculty of Pharmacy, Laboratory of Instrumental Analysis and Bioelectrochemistry, ULB 205/6, Campus Plaine; B-1050 Brussels Belgium
3. Yuzuncu Yil University; Faculty of Science, Department of Inorganic Chemistry; 65080 Van Turkey
4. Yuzuncu Yil University; Faculty of Science, Department of Analytical Chemistry; 65080 Van Turkey