Table 3
Summary of the results for the determination of iron and copper in peanuts by flame atomic absorption spectrometry using acid
digestion and ashing
Parameter Iron Copper
Digestion Ashing Digestion Ashing
No. of determinations 6 6 6 6
Average value mg gy1 . 39.4 36.6 10.1 10.5
Range mg gy1 . 39.1]39.6 363]37.0 9.9]10.2 10.2]10.7
S.D. 0.2314 0.2504 0.0852 0.1686
%. 0.6 0.7 0.9 1.6