FRACTIONATION OF CO,Ni,Fe,AND Mn IN SUSPENDED PARTICULATE FROM CHANGJIANG RIVER ESTUARY
长江口海域悬浮颗粒物中钴、镍、铁、锰的化学形态及分布特征研究

The Co,Ni,Fe,and Mn in suspended particulate from Changjiang River Estuary were fractionated using Tessier's procedure. The majority of metals except Mn were found to be in residual fraction. The Fe-Mn oxides is the most important carrier for the metals transporting from water column to sediment. The amount of metals bound to Fe-Mn oxides and carbonates are controlled by salinity and pH. The multivariate regression equations were established for the metal fractions and pH, salinity and suspended par-ticulate.