polarographn.
/ˈpəʊlərəɡraf/, U.S. /poʊˈlɛrəˌɡræf/ Chemistry.
An apparatus for automatic chemical analysis in which a sample solution is electrolysed at successively higher voltages and the resulting current plotted against voltage.
ΘΚΠ
the world > matter > chemistry > equipment or apparatus > [noun] > instruments
rammer1660
water hammer1765
saccharometer1784
thermometer1801
alcoholometer1803
alcohometer1809
cryophorus1813
nitrometer1821
alcoometer1825
alcoholmeter1831
blanchimeter1847
wet-bulb1849
absorptiometer1855
microtome1856
argentometer1879
Brix1897
Ostwald pycnometer1898
turbidimeter1905
Ostwald viscometer1911
oedometer1915
impinger1922
polarograph1925
photogoniometer1927
ultramicrotome1953
the world > matter > physics > electromagnetic radiation > electricity > electrolysis > [noun] > instrument or apparatus
voltameter1836
polarograph1925
1925 Heyrovský & Shikata in Recueil Travaux Chimiques Pays-Bas 496 (heading) The polarograph.
1946 Nature 13 July 59/1 Iron can be determined satisfactorily on the polarograph if the solution contains triethanolamine.
1968 New Eng. Jrnl. Med. 25 Jan. 203/1 Arterial pO2 was measured with the polarograph.
1974 S. E. Allen Chem. Anal. Ecol. Materials 400 Oxygen is the only dissolved gas of interest to biologists which can be readily determined on the polarograph.
1996 Biogr. Mem. Fellows Royal Soc. 42 159 Warren was a wizard with the polarograph, a tricky instrument in those days but invaluable for the quantitation of cystine in the cystinuric patients.
This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).
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n.1925