Comparison of the standard SM&T sequential extraction method with small-scale ultrasound-assisted single extractions for metal partitioning in sediments

2002 ◽  
Vol 374 (1) ◽  
pp. 103-108 ◽  
Author(s):  
Filgueiras A. ◽  
Lavilla I. ◽  
Bendicho C.
Keyword(s):  
Sequential Extraction ◽  
Extraction Method ◽  
Small Scale ◽  
Metal Partitioning ◽  
Sequential Extraction Method ◽  
Ultrasound Assisted ◽  
Single Extractions

Matrix solid phase dispersion-assisted BCR sequential extraction method for metal partitioning in surface estuarine sediments

Talanta ◽  
2011 ◽  
Vol 83 (3) ◽  
pp. 840-849 ◽  
Author(s):  
Marta Martínez-Fernández ◽  
María Carmen Barciela-Alonso ◽  
Antonio Moreda-Piñeiro ◽  
Pilar Bermejo-Barrera
Keyword(s):  
Sequential Extraction ◽  
Extraction Method ◽  
Solid Phase ◽  
Estuarine Sediments ◽  
Metal Partitioning ◽  
Bcr Sequential Extraction ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Sequential Extraction Method

Validation of an Arsenic Sequential Extraction Method for Evaluating Mobility in Sediments

2001 ◽  
Vol 35 (13) ◽  
pp. 2778-2784 ◽  
Author(s):  
N. E. Keon ◽  
C. H. Swartz ◽  
D. J. Brabander ◽  
C. Harvey ◽  
H. F. Hemond
Keyword(s):  
Sequential Extraction ◽  
Extraction Method ◽  
Sequential Extraction Method

scholarly journals The Determination of Chemical Forms of Heavy Metals in Shooting Area Contaminated Soil Using Sequential Extraction Method

2015 ◽  
Vol 20 (6) ◽  
pp. 111-116 ◽  
Author(s):  
Gyeonghye Moon ◽  
Hongki Park ◽  
Kyoungkeun Yoo ◽  
Jha Manis Kumar ◽  
Alorro Richad Diaz ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sequential Extraction ◽  
Contaminated Soil ◽  
Extraction Method ◽  
Chemical Forms ◽  
Sequential Extraction Method

scholarly journals Application of a Sequential Extraction Method for Analyzing Cu Distribution in Pre-Treated Mine Tailings after Electrodialytic Remediation

2019 ◽  
Vol 16 (4) ◽  
pp. 584 ◽  
Author(s):  
Andrea Lazo ◽  
Henrik Hansen ◽  
Pamela Lazo ◽  
Claudia Gutiérrez
Keyword(s):  
Sequential Extraction ◽  
Mine Tailings ◽  
Extraction Method ◽  
Constant Electric Field ◽  
Extraction Procedure ◽  
Water Soluble ◽  
Copper Compounds ◽  
Leaching Solution ◽  
Sequential Extraction Method ◽  
Pre Treatment

Mine tailings have been analyzed by a sequential extraction procedure after their pre-treatment with a leaching solution for 24 h and electrodialytic remediation during 15 days with a constant electric field of 2.7 V cm−1. Four leaching solutions were tested: H2SO4 + HNO3 (2:1 vol.) pH = 1.9; H2SO4 + HNO3 (2:1 vol) pH = 4.2; NH4Cl 0.8M, pH = 5.5 and 30% H2O2 adjusted to pH 2 with HNO3 1M + HCl 1M. After the treatment, the tailings were divided in six slices from anode to cathode. The highest removal efficiency of copper was obtained with H2SO4 + HNO3 pH = 1.9, which allows one to remove 67% of the copper in the total cell and 85% of the copper in the slice closest to anode. The same solution with pH = 4.2 allows one to remove 62% of the total copper. The analysis realized by the sequential extraction method indicates the easy removal of water-soluble and exchangeable fractions in all experiments, moreover, residual and sulfide are the less mobile fractions. The general trend was the movement of copper associated to different fractions from anode to cathode and its accumulation closest to the cathode in the case of exchangeable, Fe-Mn oxides and acid soluble fractions, possibly due to some precipitation of copper compounds associated with less acidic conditions.

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