... Absorption Spectrophotometer Making the characteristic concentration of As, Se, Sb, Bi, Pb, Sn, Te, Ge, In, Model GD320N Atomic Absorption ... chosen by users to conduct analysis of multiple kinds of elements and fast analysis of samples. High precision of measurement: Gas path system is ... (Totally automatic): Making the characteristic concentration of As, Se, Sb, Bi, Pb, Sn, Te, Ge, In, Tl, Cd and Zn ...