We have studied some color reactions using pyridylazo compounds as chromogenic agents in the presence of anionic surfactant, and established the spectrophotometric methods with high sensitivity and selectivity for sil...We have studied some color reactions using pyridylazo compounds as chromogenic agents in the presence of anionic surfactant, and established the spectrophotometric methods with high sensitivity and selectivity for silver, copper, cobalt, nickel and palladium based on this kind of reaction. Continuing the previous study of展开更多
文摘We have studied some color reactions using pyridylazo compounds as chromogenic agents in the presence of anionic surfactant, and established the spectrophotometric methods with high sensitivity and selectivity for silver, copper, cobalt, nickel and palladium based on this kind of reaction. Continuing the previous study of