Thermo Scientific NITON XL3t 500 User Manual page 48

The Measurement Screen
1-34 NITON XL3 Analyzer User's Guide
An element is classified as "detected" if the measured concentration (in
ppm) is at least 1.5 times the precision. Detected elements are displayed in
ppm, followed by the measurement precision. Non-detected elements are
shown as < the detection limit for that sample. The detection limit for a
given element varies depending on the other elements in the matrix.
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