Results 241 to 250 of about 47,769 (301)

The Efficacy of the Fitzpatrick Scale in Clinical Practice. [PDF]

HCA Healthc J Med
Olsen D, Nguyen C, Hall M, Carletti M, Weis SE.   +4 more
europepmc   +1 more source

Solid Phase Extraction and Determination of Tetracycline Using Gold Nanoparticles Stabilized in a Polymethacrylate Matrix. [PDF]

Molecules
Saranchina NV, Kuznetsova DE, Gavrilenko NA, Gavrilenko MA.   +3 more
europepmc   +1 more source

Ultraviolet spectrophotometry of isolated galaxies

, 1984
Brosch, N., Greenberg, J.M., Rahe, J., Shaviv, G.   +3 more
openaire   +1 more source

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Ultraviolet–visible spectrophotometry

2020
Ultraviolet (UV) and visible spectrophotometry have been utilized in forensic toxicology for both qualitative and quantitative analysis. Lambert discovered that for monochromatic radiation, absorbance was directly proportional to the path length of the incident light through the material.
Alexander G. Shard, Robert C. Schofield, Caterina Minelli   +2 more
openaire   +2 more sources

Correlations in Ultraviolet Spectrophotometry

Applied Spectroscopy, 1957
In the process of collecting a library of spectra of aromatic compounds for investigation of synthetic liquid fuels, various correlations have been observed. (1) Phenylnaphthalene-type spectra have been noted in related compounds, (2) spectra and structures of fluorene derivatives have been studied; (3) graphs of intensity as a function of wavelength ...
openaire   +1 more source

Solvents for ultraviolet spectrophotometry

Talanta, 1959
Abstract Mathematical relations are presented showing the effect of light absorption by the solvent on the absorption measurements. A simple modification in the silica-gel adsorption method of purifying iso octane is described that greatly improves the transmittance in the 2000 A region. A procedure of purifying dioxan is also included.
openaire   +1 more source

Wavelength Anomalies in Ultraviolet-Visible Spectrophotometry

Applied Spectroscopy, 2012
Spectral scans of atomic line emission sources with a Shimadzu UV2101PC spectrophotometer show that the nominal wavelength depends upon the instrumental slit width, the wavelength sampling interval, and for some slit widths, also on the specified spectral range.
openaire   +2 more sources

Far Ultraviolet Solution Spectrophotometry

Applied Spectroscopy, 1973
Techniques and apparatus for extending conventional solution absorption spectrophotometry into the far uv region are discussed. The principal difficulties of spectroscopy in this region are reviewed. Applications and examples are given in inorganic, organic, and biological chemistry.
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Infrared and ultraviolet spectrophotometry in residue evaluations

1964
In order to begin this discussion of infrared and ultraviolet spectrophotometry in residue evaluations, it is important to discuss briefly the broad field of spectrophotometry and to define the various regions of the electromagnetic spectrum of interest.
openaire   +2 more sources

Homochromatic Spectrophotometry in the Extreme Ultraviolet

Journal of the Optical Society of America, 1930
The d-log t curves of typical fast, medium, and slow emulsions when coated with oils fluorescing in the blue, near ultraviolet, and far ultraviolet respectively, have been studied in the region 900 to 5000 Angstroms by means of a vacuum spectrograph designed especially for photographic photometry, together with ordinary quartz spectrographs.
George R. Harrison, Philip A. Leighton
openaire   +1 more source