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Table 6 Results for determination of Cu(II) ions in rice sample

From: Determination of copper(II) by flame atomic absorption spectrometry after its perconcentration by a highly selective and environmentally friendly dispersive liquid–liquid microextraction technique

Sample Added, μg L−1 Founda, μg L−1 Recovery (%) Content in rice μg g−1
Rice 7.5 (± 0.6)   0.094 (± 0.008)
10.0 18.0 (± 0.4) 105  
30.0 38.2 (± 0.5) 102  
60.0 65.5 (± 1.5) 96.7  
  1. aNumbers in parentheses are standard deviations for three replicate measurements