Table 5
Determination of cadmium in vinegar by ETAAS.
Sample Cadmium content by direct method
(ng L1)
Standard
deviation
RSD
(%)
Observation
number
Cadmium determined after complete acid
digestiona (ng L1)
Standard
deviation
AV1 47.50 ± 1.60 0.64 1.35 3 48.49 ± 1.27 0.51
AV2 880 ± 19 20.54 2.33 7 890 ± 10 4.02
AV3 27.86 ± 1.09 0.44 1.58 3 28.78 ± 0.25 0.10
AV4 47.55 ± 0.47 0.51 1.07 7 45.92 ± 0.90 0.36
AV5 24.98 ± 1.02 0.41 1.64 3 24.57 ± 0.82 0.33
AV6 20.31 ± 0.97 0.39 1.92 3 20.01 ± 1.02 0.41