1978 Volume 51 Issue 12 Pages 3519-3521
Most of the mercury in coastal seawater polluted with waste water including mainly organic suspended matter is associated with suspended matter, especially particulate organic matter. The amount of mercury adsorbed on a given amount of particulate organic matter nearly obeys Freundlich’s adsorption isotherm at mercury concentrations less than 15 ppm in particulate organic matter. The mercury in suspended matter is not much reduced by the addition of tin(II) chloride. Thus, to get the total value of the mercury concentration, the water samples must be heated with the addition of a sulfuric and nitric acid mixture to decompose the suspended matter.
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