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An instrument used to determine the relative intensity of various wavelengths in a spectrum of light.

spec′tro·pho′to·met′ric (-fō′tə-mĕt′rĭk) adj.
spec′tro·pho·tom′e·try n.


(General Physics) an instrument for producing or recording a spectrum and measuring the photometric intensity of each wavelength present, esp such an instrument used for infrared, visible, and ultraviolet radiation. See also spectrometer
[C19: from spectro- + photo- + -meter]
spectrophotometric adj
ˌspectrophoˈtometry n


(ˌspɛk troʊ foʊˈtɒm ɪ tər)

an instrument for making photometric comparisons between parts of spectra.
spec`tro•pho`to•met′ric (-təˈmɛ trɪk) adj.
spec`tro•pho`to•met′ri•cal•ly, adv.
spec`tro•pho•tom′e•try, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.spectrophotometer - a photometer for comparing two light radiations wavelength by wavelength
photometer - measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source
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Craft Technologies' lab occupies over 10,000 square feet and includes a range of instrumentation for HPLC, UHPLC, GC, MS, spectrophotometric, fluorometric, ELISA and clinical testing.
A simple and precise spectrophotometric method was developed for estimation of sofosbuvir in dissolution medium based on spectrophotometric detection at wavelength 262 nm.
Spectrophotometric Determination of Residual Cr(VI)
A simple, accurate and indirect spectrophotometric method was developed for the quantification of cephalexin in pure form and pharmaceutical products using complexation reaction.
The assay of tablets was conducted by both HPLC and UV/Visible Spectrophotometric methods whereas for suspensions only UV/Visible Spectrophotometric method was used.
Leaves were randomly sampled after two weeks of cultivation samples were exposed to both spectrophotometric method through extraction in organic solvent and using portable chlorophyll meter.
They consider planning using titration, using gravimetric analysis, using the gas collection method, for energetics experiments, kinetics experiments, electrochemical experiments, organic and inorganic qualitative analysis, organic synthesis, and spectrophotometric analysis.
The substance's binding activity is measured as a spectrophotometric response and quantified against a standard curve.
These types of nanosensors have potential applications in the production of a new generation of chemical and biological nanosensors, and their replacement with usual devices in spectrophotometric and fluorimetric measurements.
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