The distribution of H 4 SiO 4 (see Figure S8D ) coincided with the PO 4 3− distribution, with maximum values (~15 μM) near Cuxhaven and a decreasing trend in an offshore direction with low concentrations (1–4 μM) near Heligoland and also near the coast toward Büsum.
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The Use of Bi-Potentiostat as a Simple and Accurate Electrochemical Approach for the Determination of Orthophosphate in Seawater.
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