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spectrophotometer Line breaks: spec¦tro|pho¦tom¦eter
Pronunciation: /ˌspɛktrə(ʊ)fəʊˈtɒmɪtə/

Definition of spectrophotometer in English:


An apparatus for measuring the intensity of light in a part of the spectrum, especially as transmitted or emitted by particular substances.
Example sentences
  • A detector ideal for comparison with spectrophotometers should exhibit intensity readings dependent on the cosine of the incident angle.
  • The absorbance of the product dye at 540 nm was measured using a flow-through spectrophotometer.
  • These subcommittees will be scrutinizing various color management technologies, such as spectrophotometers and monitors, and exploring different color output profiling standards.



Pronunciation: /ˌspɛktrə(ʊ)fəʊtəˈmɛtrɪk/
Example sentences
  • Superoxide anion was estimated by spectrophotometric measurement of the reduction of nitro blue tetrazolium.
  • Fluorimetric and spectrophotometric analysis in pure phosphate buffered saline and solvent mixtures has been used throughout the study.
  • The supernatant was taken for spectrophotometric measurements.


Example sentences
  • After boiling, the mixtures were cooled and the phenolic concentrations were measured spectrophotometrically at the wavelength of 700 nm using catechin as the standard.
  • RNA concentration was determined spectrophotometrically and verified by ethidium bromide staining of agarose gel.
  • Each dilution was kept for amplification and the amount of DNA present in each dilution was estimated spectrophotometrically.


Example sentences
  • Nitric oxide and nitrogen dioxide were chemically assayed as nitrite from sorbent tubes by using spectrophotometry.
  • The samples were dissolved in hot hydrofluoric acid and analyzed for lead by atomic absorption spectrophotometry.
  • The hair samples were washed, weighed, cold digested, and analyzed with atomic absorption spectrophotometry.

Definition of spectrophotometer in:

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