Table 2.

Concentration of Pb(II) and As(V) in the samples CS-1 and CS-2.

Sample name	Pb(II) befor digestion (mg/kg)	Pb(II) after digestion (mg/kg)	As (V) befor digestion (mg/kg)	As (V) after digestion (mg/kg)
CS-1	38	0	9	0
CS-2	32	0	7	0