Interactions between humus and trace elements in fresh water
Interactions between humus and trace elements in fresh water
复制标题
淡水中腐殖质和微量元素之间的相互作用
DOI：
10.1016/0043-1354(76)90009-9
复制
发表时间：
1976
期刊：
影响因子：
12.8
通讯作者：
E. Steinnes
中科院分区：
文献类型：
--
作者：
P. Benes;E. Gjessing;E. Steinnes
采用离心、超滤和离子交换膜过滤等方法研究了湖水中腐殖质与18种元素的相互作用。用这些方法分离出的腐殖质和微量元素的组分分别用化学计量法和活化分析法测定。分析未浓缩水和浓缩5-50倍的水的样品。已经发现，腐殖质和微量元素之间的关联在一定程度上取决于浓缩因子和pH值。卤素和碱金属离子的关联可能很低。碱土金属，特别是三价金属，与腐殖土的结合程度相当高。过渡元素也可能与湖水中的腐殖质强烈相互作用。
The interaction between humus and 18 elements in lake water has been studied using centrifugation, ultrafiltration and filtration through ion exchange membranes. The fractions of humus and trace elements separated by these methods were determined spectrophotometrically and by activation analysis, respectively. Samples of the unconcentrated water and those concentrated 5–50 × were analyzed. It has been found, that the association between humus and trace elements depends to some extent on the concentration factor and pH. The association is probably very low for halogenes and alkali ions. Alkaline earths and particularly the trivalent metals are associated with humus to a rather high degree. Transition elements also may strongly interact with humus in lake water.