FIELD: biotechnology.
SUBSTANCE: invention discloses a new method of spray drying a stock solution containing semaglutide. Unlike prior art, in the method according to the present invention, the spray dryer material contains a gas heater for drying gas with an internal surface containing iron and 16-18% chromium and 10-14% nickel, which leads to a decrease in the formation of impurities when implementing a standard industrial process drying the semaglutide preparation.
EFFECT: new method.
5 cl, 2 dwg, 2 tbl, 1 ex
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