油中汞含量

2012-05-30 08:55  下载量:3

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Mercuric compounds in sample are broken down and oxidized to mercuric ions by strong acids and oxidant in pretreatment. Mercury is reduced to Hg(0) state by stannous chloride and aerated , then pass through the absorbtion cell to be measured at 253.7nm absorbance based on AAS.

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