Some of my samples are small. What are the minimum & recommended amounts of sample material required for NAA?
Fortunately, NAA is one of the most sensitive analytical techniques in existence making possible the study of very small samples. (For example, the minimum analyzable sizes for obsidian and pottery are about 5 mg and 50 mg respectively.) However, due to possible heterogeneity in certain types of archaeological samples, one is advised to supply sufficient sample material such that the chemical analysis is more representative of the whole specimen.
