“…The DMP complexes with zinc (Zn-DMP), manganese (Mn-DMP), iron (Fe-DMP), cobalt (Co-DMP), nickel (Ni-DMP), copper (Cu-DMP), cadmium (Cd-DMP), mercury (Hg-DMP), and lead (Pb-DMP) were synthesized as described previously (Wang, 2009;Preston et al, 1968;Shen and Lush, 2010;Torbati et al, 2010;Das et al, 2013;Guo et al, 2009;Xia et al, 2011;Davies and Loose, 1976;Warad et al, 2011;Warad et al, 2013;Morsali et al, 2004;Hara et al, 2016) with some modifications, and identified by the element analysis.…”