Optimization of determination method of food preservatives sodium benzoate and potassium sorbate in milk and beverages by high performance liquid chromatogrphy
AbstractDetermination method of food preservatives sodium benzoate (Е 211)and potassium sorbate (Е 202) in milk and beverages by high performance liquid chromatogrphy was optimized. Chromatographic separation was performed on a column Zorbax Eclipse XDB-C18 with 75 mm length, 4.6 mm internal diameter and particle size - 3 microns. Detection was performed at 235 nm wavelength with simultaneous recording of the spectrum in the range 190-900 nm. The time of analysis was 3.5 min. The detection limit for sodium benzoate was 0.07 mg/L for potassium sorbate and 0.06 mg/L.
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