Seasonal changes in organotin compounds in sediments from the Bahía Blanca Estuary
- Quintas, Pamela Yanina
- Oliva, Ana Laura
- Arias, Andres Hugo
- Domini, Claudia Elizabeth
- Álvarez, Mónica Beatriz
- Garrido, Mariano Enrique
- Marcovecchio, Jorge Eduardo
DOIAbstract
Twenty-four surface sediment samples were collected in the Bahı´a Blanca Estuary (Argentina) during 2013 in order to assess the occurrence of butyltin compounds. Then, six areas ranging from zones with intensive maritime traffic to other rural/recreational zones at the inner utmost point of the estuary were periodically sampled (3 months) along the whole year. After extraction/derivatization assisted by ultrasound, three target compounds— including monobutyltin (MBT), dibutyltin (DBT) and tributyltin (TBT)—were analyzed by means of gas chromatography/mass spectrometry (GS/MS). Total butyltin (TBts) levels ranged from 73.5 to 395.2 ng Sn g-1 dry wt TBT was the minor contributor, accounting for 12.6 % of the TBts. On the other hand, MBT, for ...
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