Question: aa or icp - which do you choose?
Answer: (i) Furnace AA detection limits are generally better in all cases where the element can be atomized. (ii) Detection limits for Group I elements (e.g. Na, K) are generally better by flame AAS than by ICP. (iii) Detection limits for refractory elements (e.g. B, Ti, V, Al) are better by ICP than by flame AAS.