detection limit


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detection limit

The smallest flow of sample into the source of the mass spectrometer, or the lowest partial pressure of sample gas that gives a signal, which can be distinguished from background noise, typically at a signal-to-noise ratio of 3 (the limit of quantitation is usually higher).
References in periodicals archive ?
In the first approach, minimum detection limits are defined by the monitoring defect, and the standard deviation is defined by the difference between the monitoring and critical defects.
coli from wet menu to fingertip was measured above the detection limit at 24 hours.
However, there would be low detection limits if there are small amounts of the biomarker as the fluorescent light would not be clear.
The research should be developed by using new technologies, structures and materials for magnetic microsensors, in order to obtain values for the detection limit as small as possible.
A discussion of some of the recent developments in biosensors follows, addressing the challenges related to detection limit, detection time, and specificity.
The extremely low detection limit of the new assay indicates that environmental samples, which may contain cell culture inhibitory substances and are routinely subjected to crude separation steps such as low-speed centrifugation before analyses, can be diluted by several orders of magnitude to dilute inhibitors while maintaining the viral load at detectable levels.
2005) during the data-collection period of this study had a detection limit of 0.
Designed for ultrapure water applications in the pharmaceutical, microelectronics and power industries, it is a reagentless system with a detection limit of 0.
Selected Aroclors in transformer oil were analyzed by GC-ECD to determine a detection limit of PCBs, as Aroclors, in the transformer oil.
Four samples exceeded the detection limit of 10,000 ppm Cu.
3 ppb - below the official California detection limit.
5 kilograms of brain or spinal cord from a cow with BSE just below the detection limit.

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