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In our laboratory we are testing: Li, Si, I, Ba, Mo, Ni, Mn, Be, Cr, Co, Fe, V, Zn, Hg, Se, Cd, Sn, Sb, As, Al, PB, Ti, Cu, La, Sc, W, Na, Ca, Mg, K, Br, B, Sr,S, P, PO4 + Salinity & KH!