nephelometer

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nephelometer

[‚nef·ə′läm·əd·ər]
(optics)
A type of instrument that measures, at more than one angle, the scattering function of particles suspended in a medium; information obtained may be used to determine the size of the suspended particles and the visual range through the medium.
References in periodicals archive ?
Nephelometers detect particles, then measure light scattering by the particle, and using assumptions about optical properties and density, assign a size to each particle to produce a mass concentration estimate--not a mass measurement.
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.
Nephelometers have proven useful in many different industries including: sewage treatment; environmental monitoring; food and beverage; chemical process control; metal works; and paper and pulp processing.
Some nephelometers, including the BN II, have automated detection algorithms designed to detect antigen excess.
Exposure assessment and modeling of particulate matter for asthmatic children using personal nephelometers.
Turner Designs furnish laboratory type nephelometers with analog or digital readout, adaptable to continuous flow monitoring.
The main manufacturers of nephelometers, Beckman-Coulter and DadeBehring, recommend serum as a sample for most tests.
Nephelometers are also expensive and are not used in many in small- and medium-sized clinical laboratories.
We employed portable nephelometers providing continuous measurements and electronic data recording to optimize the temporal resolution of indoor particle levels in these homes.
Compared with the PENIA developed for the Dade Behring (Milton Keynes, United Kingdom) nephelometers [e.
Specific serum proteins were quantified by BN 100 or BNA nephelometers from Behringwerke AG and by Array 360 and/or Itiitnage nephelometers from Beckman Instruments.