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  2. Detection limit - Wikipedia

    en.wikipedia.org/wiki/Detection_limit

    The detection limit (according to IUPAC) is the smallest concentration, or the smallest absolute amount, of analyte that has a signal statistically significantly larger than the signal arising from the repeated measurements of a reagent blank. Mathematically, the analyte's signal at the detection limit is given by:

  3. Minimum detectable signal - Wikipedia

    en.wikipedia.org/wiki/Minimum_detectable_signal

    A minimum detectable signal is a signal at the input of a system whose power allows it to be detected over the background electronic noise of the detector system. It can alternately be defined as a signal that produces a signal-to-noise ratio of a given value m at the output.

  4. Explosives trace detector - Wikipedia

    en.wikipedia.org/wiki/Explosives_trace_detector

    Detection limit is defined as the lowest amount of explosive matter a detector can detect reliably. It is expressed in terms of nano-grams (ng), pico-grams (pg) or femto-grams (fg) with fg being better than pg better than ng.

  5. Absolute threshold - Wikipedia

    en.wikipedia.org/wiki/Absolute_threshold

    The odor detection threshold is the lowest concentration of a certain odor compound that is perceivable by the human sense of smell. The threshold of a chemical compound is determined in part by its shape , polarity , partial charges and molecular mass . [ 17 ]

  6. Sensory threshold - Wikipedia

    en.wikipedia.org/wiki/Sensory_threshold

    In psychophysics, sensory threshold is the weakest stimulus that an organism can sense.Unless otherwise indicated, it is usually defined as the weakest stimulus that can be detected half the time, for example, as indicated by a point on a probability curve. [1]

  7. Odor detection threshold - Wikipedia

    en.wikipedia.org/wiki/Odor_detection_threshold

    The odor detection threshold is the lowest concentration of a certain odor compound that is perceivable by the human sense of smell. The threshold of a chemical compound is determined in part by its shape, polarity, partial charges, and molecular mass. The olfactory mechanisms responsible for a compound's different detection threshold is not ...

  8. Online sports betting has trickled down to high school football

    www.aol.com/sports/online-sports-betting...

    The low limits for betting high school football also help reduce the risk for BetOnline when the staff isn’t fully confident in the opening line it posts. Mason admits that BetOnline lacks the ...

  9. Tunable diode laser absorption spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Tunable_diode_laser...

    A problem with resonant cavities is that a high finesse cavity has very narrow cavity modes, often in the low kHz range (the width of the cavity modes is given by FSR/F, where FSR is the free-spectral range of the cavity, which is given by c/2L, where c is the speed of light and L is the cavity length). Since cw lasers often have free-running ...