PARTICLE SIZING BY PHOTON-CORRELATION SPECTROSCOPY .2. AVERAGE VALUES

被引：52

作者：

FINSY, R

DEJAEGER, N

机构：

[1] Vrije Universiteit Brussel, Theoretische Fysische Scheikunde, Brussels, 1050

[2] Agfa-Gevaert N. V., Colloid Department 3179, Mortsel, 2510

来源：

PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION | 1991年 / 8卷 / 03期

关键词：

D O I：

10.1002/ppsc.19910080135

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The average values of the diameters and the diffusion coefficients of non-interacting homogeneous spherical particles as obtained with photon correlation spectroscopy are reviewed. In general, the average diffusion coefficients calculated from the first cumulant can be identified as intensity averages, while the average particle diameters are harmonic intensity averages. For particles with linear dimensions that are small compared to the wavelength of light, the intensity averages can be identified as z-averages for the diffusion coefficient and as harmonic z-averages for the diameter. For larger particles the intensity averages are, however, different from the z-averages and are dependent on the material examined (relative refractive index) and on the experimental equipment used (laser wavelength and state of polarization and scattering angle).

引用

页码：187 / 193

页数：7

共 12 条

[1]

Allen T., Particle Size Measurement, (1981)

[2]

Baily J.T., Beattie W.H., Booth C., Average quantities in colloid science, Journal of Chemical Education, 39, pp. 196-202, (1962)

[3]

Herdan G., Small particle statistics, (1960)

[4]

Berne B.J., Pecora R., Dynamic light scattering, (1976)

[5]

Finsy R., DeGroen P., Deriemaeker L., Van Laethem M., Singular value analysis and reconstruction of photon correlation data equidistant in time, J. Chem. Phys., 91, pp. 7374-7383, (1989)

[6]

Pusey P.N., Macromolecular diffusion, Photon correlation and light beating spectroscopy, (1974)

[7]

Koppel D., Analysis of macromolecular polydispersity in intensity correlation spectroscopy: the method of cumulants, J. Chem. Phys., 57, pp. 4814-4820, (1972)

[8]

Kerker M., The scattering of light, (1969)

[9]

Van de Hulst H.C., Light scattering by small particles, (1981)

[10]

De Jaeger N., Demeyere H., Finsy R., Sneyers R., Vanderdelen J., Van der Meeren P., Van Laethem M., Particle sizing by Photon Correlation Spectroscopy. Part I: Monodisperse Latices: Influence of Scattering Angle and Concentration of Dispersed Material. Part, Part. Syst. Charact., 8, pp. 179-186, (1991)

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