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Table 6 Pearson Correlation matrix for 12 elements

From: Quantitative analysis of some important metals and metalloids in tobacco products by inductively coupled plasma-mass spectrometry (ICP-MS)

Variables Al Cr Mn Fe Co Ni Cu Zn As Se Cd Pb
Al 1            
Cr 0.673 1           
Mn 0.159 0.121 1          
Fe 0.962 0.683 0.146 1         
Co 0.929 0.712 0.385 0.893 1        
Ni 0.805 0.901 0.188 0.805 0.828 1       
Cu 0.199 −0.003 0.034 0.227 0.184 0.064 1      
Zn 0.403 0.210 0.651 0.391 0.480 0.302 0.103 1     
As 0.843 0.450 0.295 0.825 0.850 0.599 0.148 0.517 1    
Se 0.315 0.100 0.272 0.235 0.317 0.127 −0.157 0.293 0.546 1   
Cd −0.289 −0.209 0.698 −0.286 −0.077 −0.195 −0.171 0.291 −0.083 0.198 1  
Pb 0.707 0.270 0.174 0.666 0.633 0.438 0.045 0.469 0.676 0.229 −0.054 1
  1. Values in bold show absolute values greater than 0.50.