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Spectrophotometry is a tool that hinges on the quantitative analysis of molecules depending on how much light is absorbed by colored compounds. Important features of spectrophotometers are spectral bandwidth (the range of colors it can transmit through the test sample), the percentage of sample transmission, the logarithmic range of sample ...
A. Walsh (1955), The application of atomic absorption spectra to chemical analysis, Spectrochim. Acta 7: 108–117. J.A.C. Broekaert (1998), Analytical Atomic Spectrometry with Flames and Plasmas, 3rd Edition, Wiley-VCH, Weinheim, Germany. B.V. L’vov (1984), Twenty-five years of furnace atomic absorption spectroscopy, Spectrochim. Acta Part B ...
A list of chemical analysis methods with acronyms. A. Atomic absorption spectroscopy (AAS) Atomic emission spectroscopy (AES) Atomic fluorescence spectroscopy (AFS) ...
It is also used in forensic analysis in both criminal and civil cases, for example in identifying polymer degradation. It can be used in determining the blood alcohol content of a suspected drunk driver. IR spectroscopy has been used in identification of pigments in paintings [2] and other art objects [3] such as illuminated manuscripts. [4]
The concentration of a certain protein in a sample may be determined using spectrophotometric procedures. [5] The concentration of a protein can be determined by measuring the OD at 280 nm on a spectrophotometer, which can be used with a standard curve assay to quantify the presence of tryptophan, tyrosine, and phenylalanine. [6]
For example, the standard method of analysis of the vitamin A content of shark liver oil, before the introduction of the DU spectrophotometer, involved feeding the oil to rats for 21 days, then cutting off the rats' tails and examining their bone structure. With the DU's UV technology, vitamin A content of shark liver oil could be determined ...
Fourier transform infrared spectroscopy (FTIR) [1] is a technique used to obtain an infrared spectrum of absorption or emission of a solid, liquid, or gas. An FTIR spectrometer simultaneously collects high-resolution spectral data over a wide spectral range.
It is the result of the Gaia Spectrophotometric Standard Stars Survey (SPSS), a selection of stars using Earth-based data in advance of the Gaia mission. Previous catalogues for calibrating magnitudes could not be used for the mission because many of these objects are too bright for Gaia to detect.