Complexation of Cu2+ with Humic Substances in Relation to Different Extraction Procedures of Sandy and Silty Marine Sediments

1984 ◽  
pp. 345-348
Author(s):  
Remi W. P. M. Laane ◽  
Cees J. M. Kramer
Keyword(s):  
Humic Substances ◽  
Marine Sediments ◽  
Extraction Procedures

SULFUR IN A FOSSIL WOOD FROM THE PLEISTOCENE MARINE CLAY

2004 ◽  
Vol 14 (01n02) ◽  
pp. 67-73
Author(s):  
K. KAGEMORI ◽  
N. AIKAWA ◽  
K. ISHIMARU ◽  
S. KAWAI ◽  
M. YUKAWA ◽  
...  
Keyword(s):  
Humic Substances ◽  
Sulfur Content ◽  
Marine Sediments ◽  
Crucial Role ◽  
Fossil Wood ◽  
Total Sulfur ◽  
Marine Clay ◽  
Polarizing Microscopy ◽  
Wood Tissue

In anoxic marine sediments sulfur is considered to be essential to the formation of humic substances. It is also estimated that sulfur may play a crucial role in the degradation of wood buried in marine sediments. In order to confirm this prediction, we observed the tissue of fossil wood from the marine clay aged 1.1 million years by polarizing microscopy and SEM before the determination of its sulfur content by PIXE and EDXA, and its distribution by μ-PIXE. Results show that the sample contained about 6000 μg/g of total sulfur and tracheid cells with birefringence, which have probably preserved the original wood components contain less sulfur compared to those without birefringence, which are heavily degraded. This might suggest the participation of sulfur in the degradation or the formation of humic substances occurred in wood tissue during diagenesis.

New trends involving the use of ultrasound energy for the extraction of humic substances from marine sediments

2004 ◽  
Vol 524 (1-2) ◽  
pp. 97-107 ◽  
Author(s):  
Antonio Moreda-Piñeiro ◽  
Adela Bermejo-Barrera ◽  
Pilar Bermejo-Barrera
Keyword(s):  
Humic Substances ◽  
Marine Sediments ◽  
Ultrasound Energy

Trace metals in humic substances from marine sediments.

1987 ◽  
Vol 3 (3) ◽  
pp. 241-244 ◽  
Author(s):  
Noriko SHINOZUKA ◽  
Masaaki HASEGAWA ◽  
Shoichiro YOSHIDA ◽  
Shigeo HAYANO
Keyword(s):  
Trace Metals ◽  
Humic Substances ◽  
Marine Sediments

scholarly journals Comparison of microplastic isolation and extraction procedures from marine sediments

2020 ◽  
Vol 159 ◽  
pp. 111507 ◽  
Author(s):  
Michaela A. Cashman ◽  
Kay T. Ho ◽  
Thomas B. Boving ◽  
Stephen Russo ◽  
Sandra Robinson ◽  
...  
Keyword(s):  
Marine Sediments ◽  
Extraction Procedures
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