HR-ZC DGT is a new high-resolution ZrO-Chelex DGT, which can be used to conduct high-resolution simultaneous determination of Fe, Cd, Co, Cu, Mn, Zn, Pb, Ni, P, As, Cr, Mo, Sb, Se, V, W and iron in sediment/wetland, and obtain the horizontal and vertical two-dimensional spatial distribution information of target objects.