In an analysis of the quantity of lead in aqueous solution with dissolved substances may give better results, the analysis does not require dilution because AA, so there is a difference of more than metrix.
In the analysis of lead in solution plating solution. The results may be poor than AA because it must be diluted. It has the distinction of metrix over.
In the determination of lead in aqueous solution plating solution. May produce worse AA analysis because of need to be diluted, therefore has the distinction of metrix more.