α. 1900s– fluophotometer.
β. 1900s– fluorophotometer, 1900s– fluorphotometer.
fluorophotometern.
/ˌflʊərə(ʊ)fə(ʊ)ˈtɒmᵻtə/, /ˌflɔːrə(ʊ)fə(ʊ)ˈtɒmᵻtə/, U.S. /ˌflʊroʊfəˈtɑmədər/, /ˌflɔroʊfəˈtɑmədər/ A photometer designed to measure the intensity of fluorescence. Cf. fluorometer n. 3.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > light > intensity of light, luminosity > [noun] > fluorescence > instrument
fluorophotometer1908
fluorometer1913
1908 C. G. Hinrichs U.S. Patent 894,499 1/2 With my instruments, which I have termed fluophotometers, an electrical engineer can measure the waste of power in electric lights and also the intensity of the dark light.
1928 Jrnl. Sci. Instrum. 5 273 (heading) A simple ultra-violet fluorophotometer.
1944 C. H. Bailey Constituents Wheat xvi. 300 The riboflavin was..treated with potassium permanganate, followed by hydrogen peroxide, and observed in a fluorophotometer.
2006 D. BenEzra Blepharitis & Conjunctivitis iv. 63/1 These evaluations may be expressed in relative numbers by assessing the kinetics of tear film fluorescein concentration using a fluorophotometer.
This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).
<
n.1908