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用仪器中子活化法测定了６种马尾藻中５种常量元素和２１种微量元素的含量，研究了其中各种元素的水浸出率。发现马尾藻对以三价和三价以上价态存在的元素富集系数较高，而对以一价和二价存在的同一族元素，原子半径越大则富集系数越高。主要以一价存在的元素８０％以上以水溶性存在，以二价或多价存在的元素水浸出率小于５０％，主要以三价存在的元素水浸出率介于二者之间。碱金属和碱土金属随原子半径的增大水浸出率减小。
The contents of five kinds of macroelement and twenty - one kinds of trace elements in six kinds of Sargassum were determined by neutron activation method. The water leaching rate of each kind of element was studied. It was found that the elemental enrichment coefficient of Sargassum present at valences of three or more is higher, whereas for the same group of elements present at one and two valences, the larger the atomic radius, the higher the enrichment coefficient. Mainly in the presence of a price of more than 80% of the elements exist in water-soluble, with two or more elements of the existence of water leaching rate of less than 50%, mainly trivalent elemental water leaching rate between the two. Alkali and alkaline earth metals with the atomic radius increases the water leaching rate decreases.