Determination of thiourea in the lower mg/L and in the µg/L range by polarography and cathodic stripping voltammetry

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Thiourea forms highly insoluble compounds with mercury. The resulting anodic waves are used for the polarographic determination of thiourea. For the analysis of very small quantities (µg/L), cathodic stripping voltammetry (CSV) is used. Differential Pulse measuring mode is used in both cases.