Photometric Analysis

Photometric Analysis


the set of methods of quantitative chemical analysis based on the relationship between the concentration of a substance in a solution or gas and the absorption of radiation. For monochromatic radiation, this relationship is expressed (within a specific range of concentrations) by the Bouguer-Lambert-Beer law. Photometric analysis includes measurements in the visible, ultraviolet, and infrared regions of the spectrum. It generally involves comparison of the intensity of radiation passing through a sample of the material being analyzed with the initial intensity or the intensity of a reference sample. The method of photometric analysis that uses visible light is called colorimetry. Photometric analysis in which the intensities of the monochromatic components of transmitted radiation are scanned is called spectrophotometry. Methods similar to photometric analysis include atomic absorption analysis, turbidimetric analysis, and nephelometric analysis.


Chariot, G. Metody analiticheskoi khimii: Kolichestvennyi analiz neorganicheskikh soedinenii. Moscow-Leningrad, 1965. (Translated from French.)
Babko, A. K., and A. T. Pilipenko. Fotometricheskii analiz. Moscow, 1968.
Bershtein, I. la., and lu. L. Kaminskii. Spektrofotometricheskii analiz v organicheskoi khimii. Leningrad, 1975.


References in periodicals archive ?
conduct photometric analysis to identify the optimum pattern and spacing for each new street light system based on the type of fixture and other installations parameters such as pole height and arm length (if applicable); 14.
Initiatives proposed to be of mutual benefit include development of software tools for real-time photometric analysis of astronomical objects; and development of class and lab material.
Photometric analysis of the image shows the comet was not at that time in outburst being relatively faint at R= 15.
In this talk, I will present our findings from a deeper investigation of the effects on the photometric analysis of super star clusters (SSC) in our sample.
GE performed a comprehensive lighting audit of our existing system, provided photometric analysis with 3D renderings of the new system, and forecasted our energy and maintenance savings.
Among specific topics are the curing behavior of epoxy containing siloxane, photometric analysis reagents of rare earths and their applications in metallurgical analysis, applying rhamnilipid biosurfactant to remove polychlorinated diphenyls from contaminated soil, cake fouling mechanism and the analysis of synthetic coke wastewater treatment by membrane bioreactor, turbulent drag reduction in journal bearings by polymer additives, hydroxylation of benzene catalyzed by supported phthalocyanine catalysts, modeling kinetics and grain density evolution during isothermal phase transformation, a new bimetal floating seal of high-speed roller bit bearings, the chemical composition and allelopathic potential of the essential oil from Datura stramonium L.
The astronomers found evidence for the stardust belt around the stars TrES-2 in the Draco constellation and XO-5 in the Lynx constellation with the help of photometric analysis.
Capable of stand-alone or PC-controlled operation using the dedicated Palintest Spectrophotometer Software, the instrument performs full spectral analysis across the 190-1100nm wavelength range, as well as kinetic measurements and both quantitative and photometric analysis modes for sample assays.
Photometric analysis of LASCO imagery provided luminosity data near inferior conjunction, when the planet is between the Sun and Earth, and superior conjunction, when it's behind the Sun.
Considering that water is colorless, for the purposes of photometric analysis of water samples it is necessary in the first phase to be completed a color reaction between followed chemical species and a specific reactant, resulted color intensity being proportional to the concentration of chemical species pursued.
To measure the homogeneity of the mixture, samples were taken at specific time intervals at different sampling points, and the concentration was measured by spectral photometric analysis.
The company cited domestic demand for photometric analysis instruments and materials-strength testing systems as particularly strong.