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@article{190458,
        author = {Vijaya Durga Dumpala and J. Rohith and Prasanna Deshaboina and G. Uday Chandra and Varun Kumar},
        title = {A Comprehensive Review of Nephelometry and Turbidimetry in Environmental Monitoring and Industrial Process control},
        journal = {International Journal of Innovative Research in Technology},
        year = {2026},
        volume = {12},
        number = {8},
        pages = {1308-1313},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=190458},
        abstract = {Turbidimetric and nephelometric methods of analysis are based upon phenomenon whereby light passing through a medium with dispersed particles of a different refractive index than the medium is attenuated in intensity by scattering. Both of these techniques are so closely related that they can be very easily discussed together. When a turbid solution i.e., a suspension of solid particles in a liquid is brought into the light path of a photometer less radiant power reaches the photo detector than if the clear (non-absorbing) liquid were in the light path.This reduction results from the scattering of light due to refraction on and refraction by the suspended particles. Since the light is scattered in all directions, consequently the radiant power of the beam directed towards the detector is reduced and as a consequence the mixture has a cloudy or turbid appearance. If other variables are held constant. the extent of this loss in radiant, power can be related to the weight concentration of the particles responsible for the scattering. Thus, turbidimetric analysis is based upon the measurement of the decrease in power of a collimated beam as a result of scattering. The turbidimetric measurements can be performed in the same manner as a photometric measurement and the results can be expressed in absorbance unit.},
        keywords = {Nephelometry, Turbidometry, Turbidity measurement, Light scattering, Absorbance, Photometric analysis, Calibration curve, Formazin standard.},
        month = {January},
        }