Analysis of the Contents of Trace Elements by Inductively Coupled Plasma Atomic Emission Spectroscopy Combined with Chemometric Methods

Document Type : Research Article


1 Laboratory of Materials Engineering for the Environment & Natural Resources, FST Errachidia, University Moulay Ismail of Meknes, BP 509 Boutalamine, Errachidia, MOROCCO

2 Laboratory of Physical Chemistry & Biotechnology of Biomolecules and Materials, Faculty of Sciences and Techniques of Mohammedia (FSTM), MOROCCO

3 Laboratory of Water and Environment, Department of Chemistry, Faculty of Sciences University Chouaïb Doukkali, PO. Box 20, El Jadida 24000, MOROCCO

4 Laboratory of Materials, Membranes and Environment, Faculty of Sciences and Technologies, University Hassan II of Casablanca, P.O. Box 146, Mohammedia 20650, MOROCCO

5 Department of Analytical Chemistry, Research Building, University of Valencia, 50th Dr. Moliner St., E-46100 Burjassot, Valencia, SPAIN



This study examines the use of inductively coupled plasma atomic emission spectroscopy (ICP-AES) combined with chemometric methods in order to determine the trace elements such as Al, Ba, Ca, Cr, Cu, Fe, K, Mg, Mn, Ni, Na, Pb, Sr, Ti and Zn in Kohl samples. The method showed that Kohl exhibited a high lead concentration, indicating that the preparation of Kohl samples is lead sulfide instead of antimony sulfide. Multivariate statistical methods are used to improve our studies. The coefficients calculated for samples exhibited a positive correlation between the trace elements, Sr, Mn, Pb, Na, Fe, Cu, Ti, and Ba indicating a similar behavior of the elements. Also, a negative correlation among Cr, Ca, Ni, K, and Mg was shown. So, no correlation was shown by Zn and Al. In the same way, the principal component analysis shows three groups. The method developed has been successfully applied to the analysis of Kohl samples in order to give the behavior and relationships between variables.


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