STP573: Determination of Total Mercury Levels in Natural Waters

    Nishi, S
    National Chemical Laboratory for Industry, Tokyo,

    Horimoto, Y
    National Chemical Laboratory for Industry, Tokyo,

    Pages: 5    Published: Jan 1975


    Abstract

    A rapid and simple preconcentration technique for the determination of trace amounts of mercury in natural waters has been studied. A 1-liter water sample is pretreated by conventional methods using permanganate and sulfuric acid. Mercury(II) ion formed is reduced to elemental mercury which is aerated and caught in a gold trap. The trapped mercury is released by heating the gold trap and driven into a photometer. A 0.01 ppb level of mercury in natural water is determined successfully.

    Keywords:

    water quality, mercury (metal), atomic spectroscopy, environmental tests, sampling


    Paper ID: STP38995S

    Committee/Subcommittee: D19.95

    DOI: 10.1520/STP38995S


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