A method is proposed for determining the organic P content in sea water by which the organic material is oxidized with HClO sub 4 and the organic P is converted to phosphate. HClO sub 4 was a better medium for oxidation that H sub 2 SO sub 4 in 2 respects: (1) the perchlorate salts formed upon the digestion of sea water were more readily H sub 2 O-soluble, and ...
A new method for the determination of nitrate in sea water, bas ed on the polarographic reduction of nitrate in the presence of uranyl ions, was investigated. It was found that sulfate ions depress the reduction current by a definite proportion depending on the chlorinity of the water sample. Chlorinities in the range of 14 to 19 parts per htousand gave a constant effect. Flouride interfered strongly with the reduction ...
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