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Spectrophotometry is a branch of electromagnetic spectroscopy concerned with the quantitative measurement of the reflection or ... Invented by Arnold O. Beckman ...
The laser was invented because spectroscopists took the concept of its predecessor, the maser, and applied it to the visible and infrared ranges of light. [87] The maser was invented by Charles Townes and other spectroscopists to stimulate matter to determine the radiative frequencies that specific atoms and molecules emitted. [ 87 ]
An optical spectrometer (spectrophotometer, ... The term was first used in 1876 by Dr. Henry Draper when he invented the earliest version of this device, ...
DU Spectrophotometer, National Technical Laboratories, 1947. The DU spectrophotometer or Beckman DU, introduced in 1941, was the first commercially viable scientific instrument for measuring the amount of ultraviolet light absorbed by a substance.
Arnold Orville Beckman (April 10, 1900 – May 18, 2004) was an American chemist, inventor, investor, and philanthropist. While a professor at California Institute of Technology, he founded Beckman Instruments based on his 1934 invention of the pH meter, a device for measuring acidity (and alkalinity), later considered to have "revolutionized the study of chemistry and biology". [1]
An XPS spectrometer. A spectrometer (/ s p ɛ k ˈ t r ɒ m ɪ t ər /) is a scientific instrument used to separate and measure spectral components of a physical phenomenon. Spectrometer is a broad term often used to describe instruments that measure a continuous variable of a phenomenon where the spectral components are somehow mixed.
Spectroscopy is a branch of science concerned with the spectra of electromagnetic radiation as a function of its wavelength or frequency measured by spectrographic equipment, and other techniques, in order to obtain information concerning the structure and properties of matter. [4]
A Fery Spectrometer, using photographic plates, was the predecessor of the Dobson Spectrophotometer [1]. The Dobson spectrometer was invented in 1924 by British physicist and meteorologist Gordon Dobson. [2]