Comparative analysis of methods of photoelectric colorimetry and stripping voltammetry in assessing the content of arsenic in sea bass samples

Abstract

Abstract The development of effective algorithms for optimizing the laboratory equipment base is one of the urgent tasks. Arsenic is classified as a toxicant of the highest hazard group; it is a highly toxic cumulative poison with a broad spectrum of action. The paper considers an assessment of the method for investigating the content of arsenic in sea bass. The research results (by the methods of photoelectric colorimetry and stripping voltammetry) on the operational control of the error using the method of additions and the assessment of the precision were found to be satisfactory. The monitoring results are presented, namely the results indicate that in the range from 0.02 to 0.05 mg of arsenic per 1 kg of sea bass, k prevails (28.1%) over other ranges. The least registered sample results (20.8%) with a range of obtained data are less than 0.02 mg/kg.