Abstract
ABSTRACT A cathodic stripping voltammetry method relying on the use of hanging mercury drop electrode (HMDE) was devised for determination of natamycin in dairy samples. Based on the concept of adsorptive stripping voltammetry, the possible additional effects of several metallic ions were examined in order to intensify the natamycin’s weak signal generated on HMDE. Among others, Ni(II) was the only and the most efficient ion promoting the electrochemical signal. This method is reliable and convenient to use as a routine analysis of natamycin instead of sophisticated HPLC methods. The described procedure was applied to evaluate the concentration of natamycin in cheese and yoghurt drink.
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