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海洋沉积物、海洋生物相(如贝壳及有孔虫等海洋生物遗骸)以及海水中微量钪和稀土元素的分布和分配,对于研究海洋地球化学有重要意义。由于这些样品中钪和稀土元素的含量很低,国外一般采用中子活化分析法等仪器手段进行测定,而国内则尚未见报导。重松恒信等(1963)曾用共沉淀、TTA萃取富集、光度法测定海水等样品中的钪。雷剑泉(1973)
Marine sediments, marine biological facies (such as shellfish and foraminifera and other marine life remains) and the distribution and distribution of trace amounts of scandium and rare earth elements in seawater is of great significance for the study of marine geochemistry. Due to the low content of scandium and rare earth elements in these samples, foreign instruments such as neutron activation analysis are commonly used in foreign countries. However, no reports have been reported in China. Weixin Hanson, etc. (1963) had coprecipitation, TTA extraction enrichment, photometric method for the determination of scandium in seawater and other samples. Lei Jianquan (1973)