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The study of suspensoids using the techniques of light scattering.
The study of the scattering properties of small samples of air and its suspensoids.



the methods used to measure the intensity of scattered visible or ultraviolet light in a given medium in order to determine the concentration, size, and shape of disperse particles in disperse systems. The nature of the scattering of light—that is, the reflection of light by illuminated suspended particles (often called the Tyndall effect)—varies according to the ratio of the size of the disperse particles to the wavelength of the incident light. If the maximum size of suspended particles is less than 0.1 the wavelength, the light scattering is symmetrical in space and is known as Rayleigh scattering. Larger particles produce light scattering that is more intense but irregular, with the scattering being greater in the direction of the incident light beam.

The theory of light scattering is used in measuring both the intensity of scattered light (nephelometry) and the intensity of the transmitted light (turbidimetry), which is reduced because of the scattering. The concentration of the disperse phase, which is used in chemical analysis, can be determined after a calibration has been made by measuring suspensions with known concentrations. The measurement of light-scattering intensity in solutions at various concentrations makes it possible to determine the molecular weights of polymers. The angular dependence of light scattering for large particles and the degree of polarization of the scattered light provide information on the shape of the particles or macromolecules. Nephelometry is also used in studying emulsions and other colloidal systems and in meteorology, marine physics, and some biological investigations.


Landsberg, G. S. Optika, 4th ed. Moscow, 1957. (Obshchii kurs fiziki, vol. 3.)
Shifrin, K. S. Rasseianie sveta v mutnoi srede. Moscow-Leningrad, 1951.
Tager, A. A. Fiziko-khimiia polimerov. Moscow, 1963.
Voiutskii, S. S. Kurs kolloidnoi khimii. Moscow, 1964.


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have evaluated quantification of IgG subclasses and compared the results to isoform-specific nephelometry in the context of immune deficiency and IgG4-related disease (8).
Their number, movement and size are caught by a turbidity sensor, and analysis is carried out via the turbidimetry and nephelometry methods as higher absorption or dispersion can occur.
2] detector tube RSP Filtration with cyclone separator RSP (continuous): Nephelometry Nicotine Sodium-bisulfate treated filter with GC/nitrogen selective detector [O.
One of the samples was used to test for turbidity according to the principles of nephelometry as described by Sawyer and McCarty (1978).
Contract notice: Award of the contract by a three-year contract for the supply of a service to investigate nephelometry.
However, nephelometry is subject to antigen excess (hook effect) interference at high protein concentrations.
Concentrations of serum CRP, apolipoprotein A-I and B were measured by the Behring nephelometry (Behring Diagnostics, Marburg, Germany).
In epidemiological studies, most hepatic inflammation biomarkers, such as CRP, fibrinogen, serum amyloid A, and others, are measured using either nephelometry or immunoturbidimetry.
5] exposure (TPE) levels (continuous nephelometry among compliant subjects with low secondhand tobacco smoke exposures; n = 30) with the CV outcomes were assessed over a 24-hr period by linear mixed models.
11) Nephelometry is another method used for detecting RE In nephelometry, latex particles are coated with human IgG that captures RE Complexes formed between the IgG and RF are detected by light scattering.
Nine months after removal of her spleen, nephelometry revealed that serum immunoglobulin (Ig) levels (15 g/L IgG, 0.