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Análisis de la dinámica del rendimiento de precios de los metales preciosos mediante modelos heterocedásticos autoregresivos
(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2013)
Simultaneous determination of Au(III) and Cu(II) with 1-phenyl-1,2-propanedione-2-oximethiosemicarbazone (PPDOT) on solid phase
(2007)
A new method for the simultaneous determination of copper and gold was developed by derivative spectrophotometry using a previous preconcentration on solid phase. The method is based on the formation of Cu(II)-PPDOT and ...
Engaste
(Servicio Nacional de Aprendizaje (SENA)Centro de Metalurgia Joyería, 2017)