Appearance of an artifact peak in the particle size distribution measured by DLS at low concentrations


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Resumo

The dynamic light scattering (DLS) method allows the determination of the particle size distribution of suspensions. At high dilutions, an artifact peak appears in the size distribution, which does not correspond to actual particles, but is caused by crossing the scattering volume boundaries by individual particles. The parameters of this peak are analyzed, the causes of its appearance and its effect on determined particle sizes are studied.

Sobre autores

M. Kirichenko

Lebedev Physical Institute

Autor responsável pela correspondência
Email: kirmari@sci.lebedev.ru
Rússia, Leninskii pr. 53, Moscow, 119991

A. Sanoeva

Lebedev Physical Institute

Email: kirmari@sci.lebedev.ru
Rússia, Leninskii pr. 53, Moscow, 119991

L. Chaikov

Lebedev Physical Institute; National Research Nuclear University “MEPhI”

Email: kirmari@sci.lebedev.ru
Rússia, Leninskii pr. 53, Moscow, 119991; Kashirskoe sh. 31, Moscow, 115409

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