Detection limit

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DRAFT DEFINITION
Detection limit
The minimum sample mass, concentration, or partial pressure required for analysis that results in a signal-to-noise of 3.
Considered between 2004 and 2006 but not included in the 2006 PAC submission
This is an unofficial draft definition presented for information and comment.

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Orange Book Entry

The detection limit reflects the smallest amount of sample or the lowest partial pressure that gives a signal that can be distinguished from the background noise. It is recommended that a signal-to-noise ratio of 2:1 be used to define the detection limit.

See also {Orange Book Chapter} 18.4.3.7 and 2.4.