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http://dx.doi.org/10.12925/jkocs.2008.25.1.13

Determination of Sizes of Nano-Particles by Specific Turbidimetry  

Lim, Kyung-Hee (School of Chemical Engineering, Chung-Ang University)
Publication Information
Journal of the Korean Applied Science and Technology / v.25, no.1, 2008 , pp. 107-114 More about this Journal
Abstract
In this article a reliable and rapid method based on specific turbidimetry is proposed for the determination of sizes of nanoparticles. Conventionally in specific turbidimetry specific turbidities for a colloidal dispersion are measured as a function of light wavelength, and compared to theoretical values calculated from Mie scattering theory for presumed particle sizes. In contrast specific turbidity at a fixed wavelength is measured in the proposed method, and particle sizes are determined from the prepared calibration curve. The calibration curve is a plot of specific turbidity vs particle size and in this case the specific turbidities are measured for a couple of samples of known sizes.
Keywords
specific turbidity; specific turbidimetry; light scattering; Mie theory; particle size;
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  • Reference
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