title: Speciation of trace quantities of mercury using a double Magos determination.
abstract: Aqueous solutions containing zero-valent and divalent mercury may be analysed using a double-Magos determination. Results are compared with standard methodology incorporating determinations of divalent mercury, by the dithizone technique, and of total mercury. Excellent correlations of Hg2+ concentrations by the two methods were obtained; the scatter in the comparison of Hg0 determinations was interpreted in terms of the substantial error unavoidably present in the standard methodology. The new method represents a significant improvement.
mesh_terms: D004230:Dithizone; D008628:Mercury / Q000032:analysis*; D008832:Microchemistry; D010084:Oxidation-Reduction; D013054:Spectrophotometry, Atomic
chemical_list: D004230:Dithizone; D008628:Mercury