Sediments treated with EDTA, or boiled in seawater, exhibited a similar or even greater reduction in lysine sorption capacity compared with sediments that were dried.
Results indicate the majority of Pu and Np is similarly distributed within many of the extracted fractions, with the largest percentage (66 97%) of both elements being observed in sediments treated with buffered citrate dithionite (CDB), which targets easily reduced constituents such as Mn and Fe hydrous oxides.
All treatments can effectively reduce soluble reactive phosphorus (SRP) concentration in overlying water when sediment is capped with thermally-treated calcium-rich attapulgite, which performs better than sediment mixed with modified attapulgite but not as well as sediment treated with Phoslock®.
The metal ion concentrations in sediment treated with 8-HQ were about the certified values for the metals (Table 2).
Killifish from a relatively uncontaminated reference site, King's Creek, Virginia, United States, and Atlantic Wood killifish were treated with dilutions of Elizabeth River sediment extract at 24 h post fertilization (hpf).
Bulk sediments were treated with 3 M HCl to remove inorganic carbonate.
To visualize calcium sediments, cells treated with Protocol 2 were stained at different times (19, 22 and 30 days from withdrawal) with Alizarin Red S solution, according to Gregory et al. [ 27].
Uranium-contaminated sediment was treated with ammonia gas to demonstrate U immobilization.
For Plasmodium vivax genomic DNA extraction, 100 μl of erythrocytes' sediment was treated with 1% saponin in Salt phosphate buffer for 20 minutes.
Duplicate aliquots of each sample were treated with 10% trichloroacetic acid and sedimented at 1,000 × g for 15 min to precipitate macromolecules.
Duplicate aliquots of each sample were treated with 10% trichloroacetic acid and sedimented at 1,000 × g for 15 min to precipitate macro molecules.
