Abstract
A method for determining the total phosphorus content in foods containing food additives of pyrophosphates and polyphosphates (E 450, E339, E452) is proposed. The reaction of formation of a reduced form of phosphormolybdenum heteropolyacid was used. As a reducing agent, a solution of hydrazine sulfate was used as a reagent that provides high sensitivity of determination . The objects of analysis were: chicken meat Roll "Snezana", processed Cheese "Cheeseburger", Instant coffee "Nescafe Gold Crema," containing food additives of pyrophosphates and polyphosphates (E 450,E339, E452). The correctness of the obtained results was confirmed by the method of additives.
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