spectrophotometry

Branch of spectroscopy dealing with measurement of radiant energy transmitted or reflected by a body as a function of wavelength. The measurement is usually compared to that transmitted or reflected by a system that serves as a standard. In chemistry and physics, different types of spectrophotometers cover wide ranges of the electromagnetic spectrum: ultraviolet (UV), visible light, infrared (IR), or microwave. UV spectrophotometry is particularly useful in detecting and quantifying colourless substances in solution. IR spectrophotometry is used mostly to study the molecular structures of complex organic compounds. In astronomy and astrophysics, spectrophotometric studies also include the X-ray and gamma ray ranges of the spectrum. See also colorimetry.

spectrophotometry [¦spek·trō·fə′täm·ə·trē]

(analytical chemistry)

A method of chemical analysis based on the absorption or attenuation by matter of electromagnetic radiation of a specified wavelength or frequency. The radiation interacts with specific features of the molecular species being determined, such as the vibrational or rotational motions of the chemical bonds. The radiation can also interact with specific atoms or the whole molecule, for example, by causing the molecule to change its electronic energy state.

Spectrophotometry

a branch of measurement technology that draws on spectrometry, photometry, and metrology in developing methods and instruments for the quantitative measurement of spectral absorptance, reflectance, emissivity, and luminance as quantities characterizing media, coatings, surfaces, and radiators.

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No references found	SpectraScience designs, develops, manufactures and markets spectrophotometry systems. Micro cap receives FDA approval for cancer detector by Peter Szafranski, AllPennyStocks.com / Stockhouse The G7 proof-to-print process is based on the principles of digital imaging, spectrophotometry and computer-to-plate technologies and is a simple calibration process that allows converters to achieve a visual match between their proofing and printing methods. APR introduces G7 program for flexographic certification by Label & Narrow Web Jenway provides spectrophotometry and electrochemistry equipment, Techne offers temperature control and calibration equipment, and Stuart offers temperature control and motion equipment. Bibby Scientific and Techcomp form alliance by Instrument Business Outlook	Spectral Series spectral temperature Spectral Term spectral theorems spectral transmission spectral type spectral width spectral-shift reactor spectre spectrobolometer Spectrochemical Analysis Spectrochemical Analysis, X-Ray spectrofluorometer spectrogram Spectrograph spectrography spectroheliocinematograph spectroheliogram Spectroheliograph Spectrohelioscope Spectrometer Spectrometry spectrophone Spectrophotometer spectrophotometric titration Spectrophotometry spectropolarimeter spectropolarimetry spectropyrheliometer spectroscope Spectroscopic Binary spectroscopic binary star spectroscopic displacement law Spectroscopic Instruments Spectroscopic Instruments, X-Ray spectroscopic parallax spectroscopic splitting factor Spectroscopy Spectroscopy, Crystal Spectroscopy, Institute of Spectroscopy, Laser Spectrosensitometer Spectrum spectrum analysis Spectrum Analyzer spectrum level spectrum line spectrum locus Spectrum of an Operator spectrum of turbulence spectrum signature	spectrometric spectrometric spectrometric Spectrometric Oil Analysis Program Spectrométrie de Masse par Accélérateur spectrometry spectrometry spectrometry spectrometry spectrophobia Spectrophone Spectrophone spectrophotometer spectrophotometer spectrophotometer Spectrophotometers Spectrophotometers Spectrophotometers Spectrophotometre Spectrophotometre Spectrophotometre spectrophotometric spectrophotometric spectrophotometric spectrophotometric analysis Spectrophotometric Multicomponent Analysis spectrophotometric titration spectrophotometrically spectrophotometrically spectrophotometrically Spectrophotometry Spectrophotometry, infrared Spectrophotometry, infrared spectropolarimeter spectropolarimetry spectropyrheliometer Spectroradiometry Laboratory spectroscope spectroscope spectroscope spectroscopes spectroscopes spectroscopes spectroscopic spectroscopic spectroscopic spectroscopic analysis spectroscopic analysis spectroscopic analysis spectroscopic analysis spectroscopic analysis Spectroscopic astronomy spectroscopic binary spectroscopic binary Spectroscopic Binary Orbit Program spectroscopic binary star Spectroscopic Diagnostics, Inc spectroscopic displacement law Spectroscopic Imaging by Dephasing Amplitude Changing Spectroscopic Instruments Spectroscopic Instruments, X-Ray

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SpectraScience designs, develops, manufactures and markets spectrophotometry systems.

Micro cap receives FDA approval for cancer detector by Peter Szafranski, AllPennyStocks.com / Stockhouse

The G7 proof-to-print process is based on the principles of digital imaging, spectrophotometry and computer-to-plate technologies and is a simple calibration process that allows converters to achieve a visual match between their proofing and printing methods.

APR introduces G7 program for flexographic certification by Label & Narrow Web

Jenway provides spectrophotometry and electrochemistry equipment, Techne offers temperature control and calibration equipment, and Stuart offers temperature control and motion equipment.

Bibby Scientific and Techcomp form alliance by Instrument Business Outlook

spectral transmission

spectral type

spectral width

spectral-shift reactor

spectre

spectrobolometer

Spectrochemical Analysis