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Data sets Publications Expeditions Thesaurus
detection  search
RTbackground level
 chemical analysis
 detection limit
 earthquakes
SNAppropriate to a large number of general topics.
detection limit  search
RTanalysis
 background level
 chemical analysis
 detection
 geochemical surveys
 geochemistry
SNMinimum concentration of a substance which can be determined under specified analytical conditions. Added to Thesaurus in 1995.