VOLT-AMMETRIC METHOD FOR DETERMINATION OF COENZYME Q10 IN COSMETIC CREAMS Russian patent published in 2017 - IPC G01N33/15 G01N27/26 

FIELD: chemistry.

SUBSTANCE: method refers to the field of chemical industry and allows to determine coenzyme Q₁₀ content in cosmetic creams using the method of differential pulse cathodic voltammetry. The essence of the method consists in the fact that volt-ammetric measurement is carried out in the background electrolyte methanol : Britton-Robinson solution in ratio 9:1 with potential sweep rate of 0.1 V/s using an indicator diamond electrode. Cathode peak is recorded in the potential range from -0.5 V to 0 V. Coenzyme Q₁₀ concentration in cosmetic creams is calculated with the help of calibrating curve by standard coenzyme Q₁₀ solution at potential of -0.40 V.

EFFECT: use of this method allows to quantify coenzyme Q in creams with high accuracy for quality control at all production stages.

1 tbl, 2 dwg, 1 ex