SPATIAL DISTRIBUTION OF ORGANIC TIN COMPOUNDS IN COASTAL SEDIMENT AND Phallusia nigra OF THE TODOS OS SANTOS BAY AND NORTHERN COAST OF BAHIA - BRAZIL

摘要

SPATIAL DISTRIBUTION OF ORGANIC TIN COMPOUNDS IN COASTAL SEDIMENT AND Phallusia nigra OF THE TODOS OS SANTOS BAY AND NORTHERN COAST OF BAHIA - BRAZIL. Organic tin compounds were investigated in the sediment of twenty-four stations located in the Todos os Santos Bay and the north coast of Bahia - Brazil. The concentration of these organic tin was also determined in a ascidium species of Phallusia nigra. The speciation and quantification was performed by GC-MS/MS. The hi-hest concentrations were: tributyltin (TBT) 438 ng g(-1), dibutyltin (DBT) 207 ng g(-1), monobutyltin (MBT) 423 ng g(-1), diphenyltin (DPT) 25.8 ng g(-1) and monophenyltin (MPT) 55.0 ng g(-1). DBT and MBT were found in Phallusia nigra, with highest concentrations of 294.1 and 148.5 ng g(-1). respectively.