I am working with REE geochemical data for statistical analysis. I normalized the data with PAAS value and now the question is I wanted to know if enriched in my data LREE or HREE?
1) Should I Divide the LREE concentration obtained from the ICP-MS with the HREE concentration from the ICP-MS or should I do the same division with the PAAS normalized data.
(The Spider plot from PAAS shows HREE enrichment in my data but the ratio of LREE/HREE from the ICP-MS shows LREE enrichment.
2) I have seen some calculated ratios such as La/Yb and It has a flow up the equation
(La/Yb)N = (La/Ybsample) / (La/YbPAAS), although I have never found this equation in any paper that I referred to and wanted to know if anyone knows the equation to calculate the LREE/HREE, LREE/MREE, MREE/HREE enrichment (please kindly mentioned if this calculation is also done using the ICP-MS or the PAAS normalized like the above-mentioned equation.
Thank you for your kind consideration
1)PAAS are reference values in order to know if LREE or HREE are enriched or not.
2) Should you Divide the LREE concentration obtained from the ICP-MS with the HREE concentration from the ICP-MS.
3)In order to know the calculated ratios such as La/Yb, You must download my paper, and you will find many references added and you can know the calculated values.
Dear Jithin Muraleedharan Girija in addition to the helpful answer provided by Majed Algabri please also have a look at the following potentially useful articles which might help you in your analysis:
Geochemical characteristics of shales in the Mamfe Basin, South West Cameroon: Implication for depositional environments and oxidation conditions
Article Geochemical characteristics of shales in the Mamfe Basin, So...
This paper has been posted by the authors as public full text on RG, so you can freely download it as pdf file)
A User‐Friendly Workbook to Facilitate Rapid and Accurate Rare Earth Element Analyses by ICP‐MS for Multispiked Samples
http://diposit.ub.edu/dspace/bitstream/2445/175058/1/708775.pdf
(see attached pdf file)
Geochemical Distribution Characteristics of Rare Earth Elements in Different Soil Profiles in Mun River Basin, Northeast Thailand
(also attached)
and
Geochemical fractions of rare earth elements in soil around a mine tailing in Baotou, China
Article Geochemical fractions of rare earth elements in soil around ...
(freely available as public full text on RG)
I hope this helps. Good luck with your work and best wishes, Frank Edelmann
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