The Analysis of Time Correlation Function of Light Scattering Intensity and Evaluate the Diffusion Coefficient of Colloid Particle
Abstract
In this research has been established on the system of dynamics light scattering and time correlation function analysis in order to study the diffusion of particles. The light source is usage laser diode with wavelength of 650 nm. We measured the scattered light from the sample by using a photodiode detector and a digital oscilloscope to record the signal. The colloidal samples are milk colloid in water with ratio 200:0.3 and in water with proportion 2.5 ppm, 5.0 ppm and 25 ppm. We analyze time correlation function and the diffusion coefficient of the particles. Base on experimental results, we obtain that the diffusion coefficient of colloidal samples were 8.69, 71.89, 70.52 and 59.61 , respectively. There for the light scattering system can be used for analyze time correlation function of scattered light and diffusion coefficient of colloidal samples.Keywords: dynamic light scattering / correlation function / diffusion coefficientReferences
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the presence of morin by dynamic light scattering. International Journal of Pharmaceutics, 478(2), 610-616.
Brown, W. (1993).,Edit., Dynamic Light Scattering, Oxford Science Publications.
Chengze Xu, Xiaoshu Cai, Jie Zhang, Lili Liu. (2014). Fast nanoparticle sizing by image dynamic light
scattering. Particuology, 19, 82-85.
Dalgleish, D. G., & Hallett, F. R. (1995). Dynamic light scattering: applications to food systems. Food
Research International, 28(3), 181-193.
Li, Z., Wang, Y., Shen, J., Liu, W., & Sun, X. (2014). The measurement system of nanoparticle size distribution
from dynamic light scattering data. Optics and Lasers in Engineering, 56(1), 94-98.
Yecang Tang, Jixiong Duan, Jianhua Wu. (2012). A laser light scattering study of complex formation between
soybean peroxidase and poly (N-isopropylacrylamide-co-sodium styrene sulfonate). Colloids and Surfaces A: Physicochemical and Engineering Aspects, 395, 82-87.
Zimbone, M., Calcagno, L., Baeri, P., Messina, G. C., & Compagnini, G. (2012). Dynamic light scattering in
gold colloids prepared by laser ablation in water. Applied Surface Science, 258(23), 9246-9249.
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Published
2017-09-07
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บทความวิจัยจากการประชุมวิชาการระดับชาติ"วิทยาศาสตร์วิจัย"ครั้งที่ 9
