detection limit


Also found in: Acronyms, Encyclopedia, Wikipedia.

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 ?
2001), the fat content is probably the main interfering factor in the PCR detection limit, making necessary to use a fat extractor (such as petroleum ether) before DNA extraction.
In this section, we discuss the effect of the naive imputation method on the geometric mean in the presence of a detection limit.
The required sensitivity for low strength and moderate toughness steel pipelines is within many ELI tool defect detection capabilities, but the required detection limits for higher strength and lower toughness pipes and very short or very deep crack defects represent a technology development challenge.
The linear regression equation ( y is ratio of peak area of the component to that of the internal standard, x is concentration), linear correlation coefficient, the linear range, the detection limits as well as limits of quantification (LOQ) of rutin and quercetin are given in Table-1.
In such cases, the speed of detection can save a patient's life, but the significance of low detection limit and high specificity can't be overlooked, either.
More recently, detection limits for selected Aroclors determined by liquid-liquid partitioning followed by headspace solid-phase microex-traction and gas chromatography atomic emission detection are reported as 0.
5 kilograms of infected neural tissue from a cow just below the BSE detection limit at slaughter to have a similar degree of exposure as the monkeys.
Although changes in assay volumes will have little effect on the detection limit or the analyte concentration reading of an ambient analyte assay, a mass-sensing device will yield a signal proportional to the total amount of analyte present in the sample solution.
Online version of the TOC-Vc Series Analyzers is equipped with a detection limit of 4 ppb and measurement capability up to 25,000 ppm.
The lab found no detectable trans fats in any of the samples, with a detection limit of 0.
In conclusion, the amounts measured by the AA were recorded at the lowest detection limit of the machine and, any lower amounts of Hg could not have been detected.

Full browser ?