Study and Determination of As, Cr, and Pb in Amaranth Seeds

Table 3

Results of the validation by standard addition carried out in A. dubius.

	Initial value^a	SD^b	Added^a	Found^a	Recovered^c
As	0.76	0.08	0.50	1.24	96.0
Cr	8.19	0.12	1.15	9.32	98.3
Pb	19.04	1.03	3.80	22.96	103.1

aMean value and concentration in mg kg⁻¹.
^bStandard deviation (𝑛=20).
^c[(found-initial)/added] × 100.