Comparative characterization of humic substances from the open ocean, estuarine water and fresh water

• Published in: Organic Geochemistry
• Main Authors: Esteves, Valdemar I., Otero, Marta, Duarte, Armando C.
• Format: Article in Journal/Newspaper
• Language: English
• Published: 2009
• Subjects: North Atlantic
• Online Access: http://hdl.handle.net/10773/5504; https://doi.org/10.1016/j.orggeochem.2009.06.006

Humic substances were isolated from ocean, estuarine water and fresh water using a two column array of XAD-8 and XAD-4 resins in series. The extracted fulvic acids and XAD-4 fraction from different origins were characterized using UV–vis., molecular fluorescence, Fourier transform infrared (FTIR) sp...