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Trace amounts of inorganic mercury (Hg2+) and methylmercury cations (MeHg2+) were adsorbed quantitatively from acidic aqueous solution onto a column packed with immobilized dithizone on microcrystalline naphthalene. The trapped mercury was eluted with 10ml of 7molL1 hydrochloric acid solution. The Hg2+ was then directly reduced with tin (II) chloride, and volatilized mercury was determined by cold...
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