Abstract
A comparative study of the chelating ability ofchitosan, p-aminobenzylcellulose and diethylaminoethylcellulose, for a number of metal ions is discussed. There is a strong interaction between molybdenum and these polymers in thiocyanate solutions and in sea water. By combining the sensitivity of graphite-furnace atomic absorption spectrometry with the efficiency of the selective collection of molybdenum on p-aminobenzylcellulose or chitosan at pH 2.5, it was possible to determine molybdenum in as little as 50 ml of sea water.
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