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 ?
Overall it is planned to develop molecules with nanomolar detection limits upon hyperpolarization, that maintain their traceability for minutes and undergo chemical transformation induced by enzymes, which can be tracked utilizing MRI.
Since all tools have error claims based on a certainty or probability of detection that must be accounted for, minimum detection limits and standard deviation measurements taken in infinite combinations ensure that a measured monitoring defect, plus the measurement error, do not reach or exceed critical defect sizes.
The broad-spectrum, water-based cationic fluoropolymer is PFOA-free at or above detection limits and has no VOCs or APEO.
The incorporation of an easy-to-use Collision Reaction Interface (CRI II) provides a solution for simple, robust, maintenance-free interference challenges, with the convenience of either Helium- or Hydrogen mode, for improved detection limits of spectrally interfered isotopes and highest accuracy.
However, there would be low detection limits if there are small amounts of the biomarker as the fluorescent light would not be clear.
The detection limits, accuracy, and response time for ultra-high-purity gas measurements are superior to the competing laser-based technology (Tunable Diode Laser) and older vibrating crystal, electrolytic and chilled mirror instruments, the company said.
MaxSignal Benzo[a]pyrene ELISA Kit offers detection limits of 2.
The detection limits were determined to be 2x104 CFU per mL and 7x103 CFU per mL for S.
Subsequent research will evaluate this protocol using different food matrices, such as fat, protein and carbohydrate, to determine if detection limits can be maintained.
Recent improvements in the technology combined with new reagents have reduced detection limits without increasing the total detection time.
When the amplifications were performed in the presence of cellular DNA extracted from PCR-negative liver, bursa, and spleen samples, the detection limits were respectively 20, 20, and 60 copies of genome per milligram of tissue.
This mass spectrometer is said to provide continuous analysis of evolving gases with unrivaled detection limits, according to the company.

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