METHOD OF DETERMINING BENDAZOLE Russian patent published in 2014 - IPC G01N33/15 G01N21/33 

FIELD: chemistry.

SUBSTANCE: solutions of an analyte (bendazole) and a comparison sample are prepared. The solvent used to prepare the test solutions is 0.1M hydrochloric acid solution. The comparison sample used is benzoic acid or phenolphthalein. Optical density of the analyte (bendazole) solution and the comparison sample is measured on a spectrophotometer with analytical wavelength of 270 nm. The results are calculated using a formula by entering a calculation factor of 0.181 into said formula when determining using benzoic acid and 0.293 when determining using phenolphthalein.

EFFECT: method increases reproducibility of measurement results, reduces cost, labour input, analytical error and enables unification of the analysis method.

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