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VOLTAMMETRIC MEASUREMENT OF ZINC IN THE NORTHEASTERN TROPICAL PACIFIC OCEAN 1
Author(s) -
Zirino Alberto,
Healy Michael L.
Publication year - 1971
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1971.16.5.0773
Subject(s) - zinc , anodic stripping voltammetry , adsorption , environmental chemistry , particulates , stripping (fiber) , pacific ocean , voltammetry , chemistry , sargasso sea , fraction (chemistry) , environmental science , oceanography , electrochemistry , geology , electrode , materials science , chromatography , organic chemistry , composite material
Relative zinc concentrations in the upper 1,000 m of the northeastern tropical Pacific Ocean were measured by p H‐controlled differential anodic stripping voltammetry (DASV) aboard ship. The waters above 125 m are significantly lower in zinc content than those between 125 and 1,000 m. A substantial fraction of the measured zinc appears to be adsorbed on particulate matter >0.45 µ . The adsorption can be reversed by lowering the p H to 5.6 with CO 2 gas.