atomic absorption  search
RTabsorption
 atomic absorption spectra
 spectroscopy
 chemical analysis
 analysis
atomic absorption spectra  search
BTspectra
 .atomic absorption spectra
UFabsorption spectra
RTabsorption
 atomic absorption
 spectroscopy
SNUsed for data. For methodology, use atomic absorption. Before 1985, also search atomic absorption AND spectra. Added to Thesaurus in 1985.