Evaluation of the concentrations of trace elements in stream sediments by factor and cluster analysis and the sequential extraction procedure

1996 ◽  
Vol 177 (1-3) ◽  
pp. 237-250 ◽  
Author(s):  
Zdenǩ Borovec
Keyword(s):  
Cluster Analysis ◽  
Trace Elements ◽  
Sequential Extraction ◽  
Extraction Procedure ◽  
Stream Sediments ◽  
Sequential Extraction Procedure ◽  
Factor And Cluster Analysis ◽  
And Cluster Analysis

Modes of Occurrence of Trace Elements (Na, K, Fe, Si) in Coal Used for COREX Process

2011 ◽  
Vol 391-392 ◽  
pp. 81-85
Author(s):  
Li Hua Zhang ◽  
Jia Xin Fan ◽  
Sheng Li Wu
Keyword(s):  
Trace Elements ◽  
Sequential Extraction ◽  
Iron Oxides ◽  
Manganese Oxides ◽  
Extraction Procedure ◽  
Sequential Extraction Procedure ◽  
Icp Oes ◽  
Digestion Method ◽  
Modes Of Occurrence ◽  
Wet Digestion

In this paper, the modes of occurrence of the trace elements of Na, K, Fe and Si in SX-Coal and SD-Coal, which were used for COREX process, were analyzed. The coal was treated by wet digestion method and then the content of trace elements was analyzed. After that, the modes of occurrence of the elements were studied by sequential extraction procedure method and analyzed by ICP-OES. The results showed that the content of Na element is the highest and the content of K and Si elements is very low among the four elements in both kinds of coal. Na and K elements mainly exist in the mode of residue in SX-Coal and SD-Coal, and they are tends to enriched in the residue during the pyrolysis. Fe and Si elements mainly exist in the mode of carbonate, iron oxides and manganese oxides in SD-Coal. Fe and Si are tends to be decomposed from the compounds during the pyrolysis.

scholarly journals Sequential extraction procedure to obtain the composition of terrigenous detritus in marine sediments

MethodsX ◽  
2020 ◽  
Vol 7 ◽  
pp. 100888
Author(s):  
Margit H. Simon ◽  
Daniel P. Babin ◽  
Steven L. Goldstein ◽  
Merry Yue Cai ◽  
Tanzhuo Liu ◽  
...  
Keyword(s):  
Sequential Extraction ◽  
Marine Sediments ◽  
Extraction Procedure ◽  
Sequential Extraction Procedure

scholarly journals Assessment of potentially reactive pools of aluminum in Andisols using a five-step sequential extraction procedure

2011 ◽  
Vol 57 (4) ◽  
pp. 500-507 ◽  
Author(s):  
Qing-xia Dai ◽  
Noriharu Ae ◽  
Takeshi Suzuki ◽  
Mani Rajkumar ◽  
Shoko Fukunaga ◽  
...  
Keyword(s):  
Sequential Extraction ◽  
Extraction Procedure ◽  
Sequential Extraction Procedure
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