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Related to nephelometer: nephelometry


An apparatus that is used to measure the size and concentration of particles in a liquid by analysis of light scattered by the liquid.

[Greek nephelē, cloud; see nebh- in Indo-European roots + -meter.]

neph′e·lo·met′ric (-lō-mĕt′rĭk) adj.
neph′e·lom′e·try n.


(Chemistry) chem an instrument for measuring the size or density of particles suspended in a fluid
[C19 (in the sense: an instrument for measuring the cloudiness of the sky): from Greek nephelē cloud + -o- + -meter]
nephelometric adj
ˌnepheˈlometry n


(ˌnɛf əˈlɒm ɪ tər)

an instrument for studying the density of suspended particles in a liquid by measuring the degree to which the suspension scatters light.
[1880–85; nephel- (comb. form representing Greek nephélē cloud; see nebula) + -o- + -meter]
neph`e•lo•met′ric (-ləˈmɛ trɪk) neph`e•lo•met′ri•cal, adj.
neph`e•lo•met′ri•cal•ly, adv.
neph`e•lom′e•try, n.
References in periodicals archive ?
Tenders are invited for Supply of integrating nephelometer
com/ products/aerosol-mass-spectrometer) AOD Aerosol optical depth BS/TS Backscatter/total-scatter nephelometer (#3 GRO) CAPS-SSA Cavity attenuated phase shift spectrometer (#1 EXT) (www.
The agency reads particulate levels with a device called a nephelometer, which gauges the dimming effect of pollution on sunlight.
5 Mc Farland's nephelometer in order to get approximately [10.
The readings from a nephelometer are at best an estimate, and from comparison studies of factory-calibrated nephelometers with co-located gravimetric instruments, usually an overestimate of mass.
set the Nephelometer to '0' and '100' readings using double distilled water '100' NTU standard.
Last summer, Dalhousie University's Graydon Snider was on the roof of a half-built office building in Bangladesh setting up a nephelometer --an air sampler device--to measure the concentration of suspended particulates in the thick, grimy air.
Serum was separated immediately after clotting and is used for the estimation of hsCRP by particle enhanced immunonephelometry on the BNA nephelometer (Dade Behring, Liederbach Germany).
At the 15 targeted nephelometer locations, plus an additional 14 locations near the burns, trained local personnel placed passive samplers (which did not require a field operator or electricity) to measure particulate matter (RJ Lee Group, Monroeville, PA) and naphthalene (SKC Product Code: 575-003, Eighty Four, PA) for 24 to 120 hours and then sent the samplers to our laboratory for analysis.
Investigations included: Total cholesterol, total triglycerides, LDL-C and HDL-C using enzymatic colorimetric methods, ApoA1, Apo B100 were evaluated using a Behring nephelometer.
5] nephelometer, which measured individual-level real-time [PM.