Procedure for the determination of the intact macromolecules of nitrocellulose and polymers of d-glucopyranose by capillary electrophoresis. (Machine-translation by Google Translate, not legally binding)

摘要

Procedure for the determination of intact macromolecules of nitrocellulose and d-glucopyranose polymers by capillary electrophoresis. The objective of the invention is the development of a pioneering analytical procedure by capillary electrophoresis with detection by laser-induced fluorescence (ce-lif) that allows the determination of intact nitrocellulose, which is a chemically and structurally heterogeneous macromolecule with a high molar mass. The invention consists of the derivatization of the macromolecule with the trisodium salt of 1,3,6-trisulfonic acid-8-aminopyrene (apts), its subsequent electrophoretic separation using an acid medium such as the formate buffer at ph 2.0 and its detection direct lif at an excitation wavelength of 488 nm and emission of 520 nm. The procedure has been successfully applied to the determination of nitrocellulose contained in single, double and triple base smokeless powder, nitrocellulose of low nitrogen content and similar macromolecules such as cellulose and starch. (Machine-translation by Google Translate, not legally binding)