Application of pressure in capillary zone electrophoresis to study the aggregation of chitosan 2-hydroxybutoxypropylcarbamate
- Autores: Vanifatova N.1, Rudnev A.1, Gabrielyan G.2, Dzhenloda R.1, Burmistrov A.1, Lazareva E.3, Dzherayan T.1
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Afiliações:
- Vernadsky Institute of Geochemistry and Analytical Chemistry
- Moscow State University of Design and Technology
- Department of Chemistry
- Edição: Volume 72, Nº 7 (2017)
- Páginas: 803-809
- Seção: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/182569
- DOI: https://doi.org/10.1134/S1061934817070140
- ID: 182569
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Resumo
It is demonstrated that the use of pressure extends the possibilities of capillary zone electrophoresis in studying aggregative states of substances, ensuring the detection of the presence of several types of aggregates with different electrophoretic mobilities. The electropherograms of chitosan 2-hydroxybutoxypropylcarbamate (CHBPC) in citrate solutions with pH 3.1, 4.5, and 5.8 indicate the dependence of aggregation on pH. A comparison of the data for CHBPC obtained by capillary zone electrophoresis, static light scattering, and scanning electron microscopy revealed a relationship between the electrophoretic mobility and sizes of aggregates, varying from 140 nm to several micrometers. The size of aggregates can be estimated by hydrodynamic contribution to their mobility. The effectiveness of the use of CHBPC for the dynamic modification of capillaries is shown.
Sobre autores
N. Vanifatova
Vernadsky Institute of Geochemistry and Analytical Chemistry
Autor responsável pela correspondência
Email: vanifatova@mail.ru
Rússia, Moscow, 119991
A. Rudnev
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: vanifatova@mail.ru
Rússia, Moscow, 119991
G. Gabrielyan
Moscow State University of Design and Technology
Email: vanifatova@mail.ru
Rússia, Moscow, 119071
R. Dzhenloda
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: vanifatova@mail.ru
Rússia, Moscow, 119991
A. Burmistrov
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: vanifatova@mail.ru
Rússia, Moscow, 119991
E. Lazareva
Department of Chemistry
Email: vanifatova@mail.ru
Rússia, Moscow, 119991
T. Dzherayan
Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: vanifatova@mail.ru
Rússia, Moscow, 119991