一、引言海洋是一个含有众多的无机物和有机物的复杂而巨大的水溶液体系.无机物是由20亿年以上的地壳侵蚀,火山喷出物和陨石等物质衍生而来的,有机物则是海洋内发生大规模生物活动的产物、副产物和分解产物等形成的.目前已知的一百多种元素中,在海水中有八十多种已经监测(参看表1).可以预料,随着海水分析技术的不断发展,所有元素很可能逐渐自海洋 I. INTRODUCTION The ocean is a complex and huge system of aqueous solutions containing numerous inorganic and organic matter, which is derived from more than two billion years of crustal erosion, volcanic eruptions and meteorites, and organic matter is the ocean Products, by-products and decomposition products that occur within a large-scale biological activity occur in. Of the more than one hundred elements currently known, more than 80 in seawater have been monitored (see Table 1). It is expected that with the Sea water analysis technology continues to evolve, all elements are likely to gradually from the ocean