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The wet deposition of iron and peroxides was monitored during an intense rain squall in the equatorial Pacific Ocean. Iron and hydrogen peroxide were determined at sea using adsorptive cathodic stripping voltammetry (ACSV) and an enzyme-catalyzed flourometric technique, respectively. The equatorial rainwater was enriched in ACSV reactive iron (average 2.7 nmol Fe kg -1 ) and hydrogen...
A highly sensitive stopped flow chemiluminescence method has been developed for the analysis of Fe(II) at subnanomolar levels in seawater. Oxidation of Fe(II) by O 2 in the absence of H 2 O 2 is used to catalyze luminol chemiluminescence. The sample and luminol reagent are pneumatically injected into a 1 cm flow cell positioned in front of a photomultiplier tube. The luminescence...
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