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).
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References in periodicals archive ?
Their anonymous expert confused the lowering of analytical detection limits wit the actual levels of exposure or dosage that will cause a risk.
CT&E indicates a detection limit of 1000 ppm for its CHN-600 instrument.
Many cytokines are likely to have biological activity at concentrations well below the detection limits of commercially available immunoassays.
Detection limits were 11 pmol/L (3 pg/mL; Kryptor) to 77 pmol/L (25 pg/mL; Architect 12000) for [E.sub.2] and 0.19 nmol/L (0.06 ng/mL; Kryptor) to 0.17 ng/mL (0.54 nmol/L; Ax5YN1) for P (Table 1).
HORIBA Scientific's ULTIMA Expert ICP/OES Spectrometer combines ease of use, a unique plasma torch design, comprehensive tools, high resolution, low detection limits and full wavelength coverage optics for the most challenging applications.
The new PentaPIN detector--based on the company's Oxford Instruments'--patented PentaFET technology--means faster analysis and lower detection limits for all elements.
We also examined the detection limits of 15 home pregnancy test devices to detect hCG and H-hCG.
The new XFlash V5 offers a larger active detector area, which results in shorter measurement times and better detection limits. This combination of excitation and detection power guarantees good element separation, low detection limits, high precision and enhanced stability.
(11) report detection limits of a single or a few nanoparticles in solution, these are not actual immunoassay results.
"These purities can even challenge the detection limits of conventional analytical instruments."
The analyzer provides improved sensitivity and detection limits for a variety of on-site oil-in-water measurements, such as sub-ppm detection levels of oil in wastewater going into inland waterways, FRAC water and produced water discharges from oil drilling.

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