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absorbance

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absorbance
absorbance (əbs-, əbˈzɔːbəns) [f. absorb v. + -ance.] The logarithm of the ratio of the luminous flux entering a sample or object to that transmitted by it; = optical density s.v. optical a. 2 a.1947 Nat. Bureau Standards Let. Circular No. 857. 4 Those in the Bureau most concerned with the matter ha... Oxford English Dictionary
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Absorbance
, often in derived units such as the milli-absorbance unit (mAU) or milli-absorbance unit-minutes (mAU×min), a unit of absorbance integrated over time. As stated above, the spectral absorbance at a given wavelength is The absorbance spectrum is plotted on a graph of absorbance vs. wavelength. wikipedia.org
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Interference with Fluorescence and Absorbance - Assay Guidance Manual ...
Assays, both high-throughput and lower throughput, are an integral part of the drug discovery process and are used for identifying and validating potential drug candidates. Many biochemical and cell-based assays utilize fluorescence and to a lesser extent absorbance readouts so it is important to consider the impact on the assay quality of a given detection method. There are many fluorophores ...
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Specific ultraviolet absorbance
Specific ultraviolet absorbance (SUVA) is the absorbance of ultraviolet light in a water sample at a specified wavelength that is normalized for dissolved the sample must be diluted with ultrapure water because absorbance can be high. wikipedia.org
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Correlating beta-lactamase expression to absorbance > When penicillin-resistant bacteria are grown in liquid culture media, β-lactamase is secreted into the medium. The supernatant of such a medium can be assayed for ...
In the β-lactamase test, an inhibitor of β-lactamase is added to a sample of the culture medium. The inhibitor binds to the enzyme and changes its color, which is in direct correlation to the concentration of the β-lactamase. More β-lactamase means more inhibitor binding and this results in more col...
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Oxygen radical absorbance capacity
Oxygen radical absorbance capacity (ORAC) was a method of measuring antioxidant capacities in biological samples in vitro. wikipedia.org
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What is the effect of the wavelength on the spectrophotometric measurements of protein? Does the wavelength setting affect the absorbance reading of a spectrophotometer? For example, if I am using a spectrophotometer ...
In addendum, keeping the wavelength around the absorption maximum for the light-attenuating species avoids introducing error into Beer's Law. There are limitations to the law, outlined here where we can see that around the lambda max, there's little change in absorption per unit wavelength: ![enter ...
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AUFS
Absorbance Units Full Scale (AUFS) is a ubiquitous unit of UV absorbance intensity. Usage AUFS is an arbitrary but ubiquitous unit of UV absorbance intensity. wikipedia.org
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Which wavelength to use to determine algae using a colorimeter? I am doing a Biology project involving the measurements of the density of algae ( _Nannochloropsis_ ) using absorbance colorimetry. What wavelength shoul...
From **Biotek** I learned the following: > Spectral scans of algae cultures demonstrate significant absorbance below 400 nm as well as two distinct absorbance Absorbance spectral curve of Microcystis aeruginosa suspension cultures.Source: Biotek
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Hyperchromicity
Hyperchromicity is the increase of absorbance (optical density) of a material. The opposite, a decrease of absorbance is called hypochromicity. wikipedia.org
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Plotting glucose production against time , x-axis & y-axis issue Working on a pre-lab, some of the directions for drawing graphs is that the "x-axis" is for the non-variables, and the "y-axis" is for the variables (wh...
time is x axis almost always, glucose production y axis
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Transmittance (Formula & Transmittance to Absorbance Calculation ...
Transmittance is a ratio of the incident intensity of light (I 0) to the amount of intensity passes through the object (I). Absorbance is defined as the amount of light absorbed by the molecules of the object. Equation. How the value change as the concentration is increased. Transmittance decreases exponentially.
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甘氨酸，分子生物学级 Absorbance (260 nm and 280 nm): ≤0.01. | Sigma-Aldrich
甘氨酸，分子生物学级 Absorbance (260 nm and 280 nm): ≤0.01.; CAS Number: 56-40-6; Synonyms: 甘氨酸,氨基乙酸; Linear Formula: NH2CH2COOH; find Millipore-357002 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich
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UV-Vis absorbance and luminescence peak maxima of the ... - ResearchGate
Download scientific diagram | UV-Vis absorbance and luminescence peak maxima of the metal complexes at room temperature and low temperature. from publication: Water-Soluble Iridium(III) Complexes ...
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Benesi–Hildebrand method
The absorbance can be collected before and following the formation of the HG complex. This change in absorbance (ΔA) is what is experimentally acquired, with A0 being the initial absorbance before the interaction of HG and A being the absorbance wikipedia.org
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