Quantification of Sterol and Triterpenol Biomarkers in Sediments of the Cananeia-Iguape Estuarine-Lagoonal System (Brazil) by UHPLC-MS/MS.

ABSTRACT: Sterols and triterpenols present in sedimentary cores from 12 stations along the Cananéia-Iguape estuarine-lagoonal system were investigated by ultra-high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS). Ten sterols and three triterpenols were identified and quantified, indicating both natural and anthropogenic sources. The relative distributions of sterol and triterpenol showed that the study area is submitted to organic matter (OM) from the Ribeira de Iguape River, seawater, surrounding vegetation, and plankton production. The contribution of these sources depends on the region of the estuarine-lagoonal system and the depth of sediment. Regarding anthropogenic sources, only the samples submitted to freshwater flow from the Ribeira de Iguape River presented concen

SUBMITTER: Bataglion GA 

PROVIDER: S-EPMC4819115 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature