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ICOP & ICPET 2017, 23 - : 701-704 Back to browse issues page
Analytical and experimental study of Double-Exponential (DE) method in particle sizing of colloidal bimodal samples
Seyedeh Helia Hooshmand Ziafi Ms. * 1, Masoumeh Dashtdar Ms., Mohaddeseh Shokri Moghaddam Ms.
Abstract:   (1005 Views)

Dynamic light scattering (DLS) is a method for determining the size of particles in colloidal samples. One of the methods for analysis of DLS data from bimodal samples is the double-exponential method (DE). This method assumes a model field-autocorrelation function given by the sum of two exponentials. In this article we have presented  that despite some researches, fitting the autocorrelation function into the sum of two exponentials, does not always show the existence of two different particle-sizes in sample, but it is true only under some conditions. For accuracy of our analysis, we also used the experimental data of DLS setup

Keywords: Dynamic light scattering (DLS), bimodal sample, field autocorrelation function, double-exponential method.
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Type of Study: Research | Subject: Special
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Hooshmand Ziafi S H, Dashtdar M, Shokri Moghaddam M. Analytical and experimental study of Double-Exponential (DE) method in particle sizing of colloidal bimodal samples . ICOP & ICPET. 2017; 23 :701-704
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Volume 23 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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