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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.
References in periodicals archive ?
corniculatus photoreceptors, as revealed by microspectrophotometry (MSP).
For their study, Hart and his team used a different technique - microspectrophotometry - to identify cone visual pigments in shark retinas and measure their spectral absorbance.
Likewise, we know of no microspectrophotometry studies detailing the absorbance maxima of photopigments in juvenile or adult Pacific halibut retinas.
The analyst must have an understanding of UV-visible microspectrophotometry and the general concepts of specimen preparation prior to using this guide.
Workshops focused on more in-depth analysis and interpretation of such techniques as feather identification, microspectrophotometry, Fourier transform infrared spectroscopy, and elemental analysis, as well as other instrumental analysis methods.
The test order is: microscopy, Fourier transform infrared spectroscopy (FTIR), microspectrophotometry or colorimetry, scanning electron microscopy/ energy dispersive spectroscopy (SEM-EDS), and, lastly, pyrolysis coupled with gas chromatography/mass spectrometry (GC/MS).
Investigation of ester-and ether-linked phenolic constituents of cell wall types of normal and brown midrib pearl millet using chemical isolation, microspectrophotometry and [sup.
Infrared microscopy or, as it is more properly known, Fourier transform infrared microspectrophotometry (micro-FTIR) utilizing a Perkin-Elmer Auto Image System coupled to a Series 2000 FTIR.
Comparison of plant DNA contents determined by feulgen microspectrophotometry and laser flow cytometry.
These included radioactive isotopes, electrophoresis, microspectrophotometry, the electroencephalogram, and electromyogram.
Zeiss has always been a leader in microspectrophotometry, and its recently reconfigured product line sets new benchmarks, as is demonstrated by its modularity and flexibility.