analysis of the contents of trace elements by inductively coupled plasma atomic emission spectroscopy combined with chemometric methods

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.