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  • Spectroscopy
  • Even if the systematic error caused by background fluorescence interference is eliminated or compensated (for example by using synchronous scanning , wavelength modulation , derivative spectroscopy , or advanced chemometric techniques such as rank annihilation), the photon noise from the background remains and sets an ultimate limit to signal-to-noise ratio performance. (umd.edu)
  • This fact severely limits the lowest detectable quantity in NMR spectroscopy and the highest achievable spatial resolution in MRI, both being directly proportional to the signal-to-noise ratio (SNR) of the experiment. (plos.org)
  • quantitative
  • The aim of this study was to determine the quantitative properties and the fundamental imaging limits of Ga68-PSMA-11-PET/CT in localizing small PCa cell deposits. (springer.com)
  • To help water quality managers decide whether to employ routine polymerase chain reaction (PCR) or quantitative PCR (qPCR), this study compared the limit of detection (LOD) and costs associated with the human-associated Bacteroidales HF183 Endpoint, HF183 Taqman, HF183 SYBR assays and gull-associated Catellicoccus marimammalium Gull2 Endpoint and Gull2 Taqman assays. (epa.gov)
  • standard
  • The detection limit is defined as the amount of enzyme required to cause a 10-20% change in fluorescence compared with the control sample at 22°C. Enzyme unit definitions are standard definitions for each individual enzyme. (thermofisher.com)
  • important
  • Noble metal NPs (in particular Ag NPs) can facilitate important advances in detection, diagnosis, and treatment of human cancers as well as delivery of drug and gene to malignant cells [ 1 , 2 ]. (hindawi.com)
  • single
  • Meindert A. van Dijk, Markus Lippitz, Daniël Stolwijk, and Michel Orrit, "A common-path interferometer for time-resolved and shot-noise-limited detection of single nanoparticles," Opt. (osapublishing.org)
  • products
  • Cable Detection`s products increase your onsite safety and help you to accurately and quickly locate buried services with integrated features specifically designed to reduce human error and to increase site safety. (environmental-expert.com)
  • sample
  • While both the noise level and the Boltzmann distribution would benefit from a reduced sample temperature, the freezing point and the operating temperature of the sample impose practical limits. (plos.org)
  • maximum
  • Note that this simulation predicts only a theoretical maximum signal-to-noise ratio limited by detector noise and by the photon noise of the analyte's fluorescence emission. (umd.edu)