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Table 3 Correlation for Zn and Fe concentration in fufu samples before and after milling

From: Heavy metal contamination and health risk assessment of mechanically milled delicacy called fufu

  Zn Before Zn After Fe Before Fe After
Zn Before 1    
Zn After 0.896a 1   
Fe Before 0.160 0.166 1  
Fe After −0.234 −0.104 0.586 1
  1. aCorrelation is significant at the 0.05 level (2-tailed)