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Phosphorous monitoring is important for eutrophication control in aquatic ecosystems, but ultratrace level concentrations may not be detected by conventional analytical methods. A method for measuring ultratrace level phosphate by online solid-phase extraction combined with HPLC was developed. A short column (50mm) packed with octadecylsilane (ODS) was used for extraction of phosphoantimonylmolybdenum...
This study has demonstrated the similarities in the geochemical behavior of Sb and As under relatively oxic condition within a river system of Kamo-Ichinokawa in Japan. Speciation data in both water and solid phases were obtained by HPLC–ICP-MS and X-ray absorption fine structure analyses, respectively. The solid–water distributions of Sb and As are similar at all sampling points. Scavenging of the...
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