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Investigations of some trace elements in the bay of lim


, : Investigations of some trace elements in the bay of lim. Marine Biology (Berlin) 73(3): 239-242

Sea water was collected at several stations in the Bay of Lim [Yugoslavia] at a depth of 1 m below the surface and before analysis, was filtered with 0.45-.mu.m Millipore filters. Shallow water sediments were collected at the same locations. Humic acids used in this work were separated from near-shore sediments taken from various saline waters of the Bay of Lim. The prepared humic acids were then analyzed for their elementary composition and also for positions of their hydrolytic products to obtain more data on how and to which characteristic part the trace elements were related. The hydrolysis of humic acids was done by chemical methods to obtain 4 main components: amino acids, sugars, phenols and condensed benzene core. Neutron activation analysis was used for trace element analysis in evaporated portions of filtered sea water, sediments, soil, living organisms, humic acids and their hydrolytic products. This work was undertaken to obtain more data on the organic matter present in sediments and in seagrass flats, and also to collect more data on trace elements that are associated with typical and representative samples for the Bay of Lim. Analyses of trace elements associated with either humic acids or their hydrolytic products were performed with the purpose of gaining evidence as to which part of humic acids metals are bound. Humic acids or their decomposition products play an important role in the distribution and availability of a number of essential or nonessential trace elements. Humic acids influence the process of redistribution of trace elements in the investigated local coastal area.

US$19.90

DOI: 10.1007/bf00392248


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