Spectrophotometric Determination of Ethionamide and Thionicotinamide with 4-( 2-Pyridylazo ) resorcinol and Vanadium

  • H. Sikorska-Tomicka, H. Slkorska-Tomicka
  • Published 2007


A new spectrophotometric method for the determination of thionicotinamide and ethionamide is proposed. The method employs the reaction between these compounds and vanadium-PAR complex. The composition of the complexes formed is V:PAR:ligand = 1:1:1. The method described makes it possible to determine ethionamide and thionicotinamide in a concentration range… (More)

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