The recovery rates for the heavy metals reported in this study were reasonably good (77–119%) based on digestion of four certified standard reference materials (SRMs), including an estuarine sediment (SRM 1646A) and three soils (GSS6, GSS7, and GSS16)
The recovery rates for the heavy metalsreported in this study were reasonably good (77–119%) basedon digestion of four certified standard reference materials (SRMs),including an estuarine sediment (SRM 1646A) and three soils(GSS6, GSS7, and GSS16)