nephelometricadj.
/ˌnɛfələ(ʊ)ˈmɛtrɪk/, /ˌnɛfl̩ə(ʊ)ˈmɛtrɪk/, U.S. /ˈˌnɛfəloʊˈmɛtrɪk/ Chemistry.
Of, relating to, or measured by nephelometry.
ΘΚΠ
the world > matter > chemistry > chemical assay or analytical chemistry > [adjective] > of specific types > of or relating to nephelometry
nephelometric1892
1892 New Sydenham Soc. Lexicon Nephelometric, cloud measuring. That which relates to the estimation of the density of a cloud in, or the degree of turbidity of, a fluid.
1905 Jrnl. Amer. Chem. Soc. 27 485 The application of these observations to the nephelometric analysis of a very dilute silver chloride solution is obvious.
1929 P. A. Kober in J. H. Yoe Photometric Chem. Anal. II. vi. 71 Precipitants for the production of nephelometric suspensions are as varied as the substances precipitated.
1971 P. R. Hesse Textbk. Soil Chem. Anal. xii. 314 The only difference between turbidimetric and nephelometric measurement of sulphate is in the measurement of the final turbidity.
1996 Denver Post 11 Feb. b2/2 They were worried because the water's clarity reached 12 ‘nephelometric turbidity units’, exceeding the state limit of 5 NTUs.
Derivatives
ˌnepheloˈmetrically adv.
ΘΚΠ
the world > matter > chemistry > chemical assay or analytical chemistry > [adverb] > by process of specific types of chemical analysis > by means of nephelometry
nephelometrically1905
1905 Jrnl. Amer. Chem. Soc. 27 507 When in a day or two the precipitate had settled and the mother-liquor had become clear the latter was examined nephelometrically.
1971 P. R. Hesse Textbk. Soil Chem. Anal. xvi. 423 Silver is extracted from soil by acid digestion and is classically determined nephelometrically as the chloride.
This entry has been updated (OED Third Edition, September 2003; most recently modified version published online March 2022).
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adj.1892