1. 1Department of Chemical and Biological Sciences, Aurel Vlaicu University, Arad, 310330, Romania
2. 2National Institute for Research and Development in Electrochemistry and Condensed Matter, Timisoara, 300224, Romania
3. 3County Lab for Pesticides Quality Control, Arad, 310059, Romania
4. 4Faculty of Industrial Chemistry and Environmental Engineering, Politehnica University, Timişoara, 300006, Romania