Achterberg, Eric P. (2000) Automated techniques for real-time shipboard determination of dissolved trace metals in marine surface waters. International Journal of Environment and Pollution, 13 (1-6). pp. 249-261. DOI 10.1504/IJEP.2000.002318.

Abstract

This review compares methods that are currently employed for shipboard analysis of trace metals in seawater: voltammetric, chemiluminescence and colorimetric methods. Instrumentation and methods are described for collecting surface seawater using pumping, with subsequent on-line analysis by stripping voltammetry. The review is illustrated with data for oceanic and coastal distributions of dissolved copper and nickel, determined using automated stripping voltammetry. Trace-metal levels in estuarine, coastal, and oceanic waters are often quite low. A review is presented of shipboard techniques for determining dissolved trace metals in marine surface waters. These include colorimetric, chemiluminescence, and voltammetric methods. A promising method is cathodic stripping voltammetry, which uses underway pumping as a means of sample collection, thereby obviating the requirement for vessels to stop before the collection of discrete samples. This method has been applied for the real-time determination of nickel in the Atlantic Ocean and copper in the Huelva estuary and the Gulf of Cadiz, Spain.

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