Abstract
The spectrophotometric method of quantitative determination of copper(II) by reaction of complex formation with pyrogallol red (in the presence of cation and non-ionic surfactants is proposed. Optimal conditions for analysis have been determined. The method has been tested for the determination of copper(II) in the soil extractor sample. The metrological characteristics of the proposed methodology are evaluate: the detection limit is 0.12 mg/kg, relative standard deviation - less than 0.05.
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