Мясо и мясные продукты. Определение содержания нитратов (контрольный метод)
Название (англ.):
Meat and meat products; determination of nitrate content (reference method)
Описание (англ.):
The method consists in extracting of a test portion with hot water, precipitating of proteins and filtrating. Reduction of the extracted nitrates into nitrites by metallic cadmium. Formation of a red colouration by adding of sulfanilamide and nphthyl ethylenediamine hydrochloride and photometric measurement at a wavelength of 538 nm.