Through a combination of selective extractions and molecular characterization techniques including Isoelectric Focusing Chromatography Electrospray Ionization Fourier-Transform Ion Cyclotron Resonance Mass spectrometry, structures diatom ( Phaeodactylum tricornutum ) coccolithophore Emiliania huxleyi )-associated biopolymers that are responsible for the distinct partitioning behavior between 21...

Sediment cores were collected from the Xiangxi River, a tributary of Three Gorges Reservoir, deposition time in longest sediment core (90 cm) was measured by radiometry (137Cs, 210Pb) activities and polychlorinated dibenzo-p-dioxins/furan (PCDD/F) concentrations different depths measured. The results indicated that mean rate 1.01 cm/a. total PCDD/F ranged 19.28 to 70.07 pg/g d.w. with 35.06 PCD...