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Morales, Libby ,  Toral Ponce, María ,  [Simultaneous determination of Au(III) and Cu(II) with 1-phenyl-1,2-propanedione-2-oximethiosemicarbazone (PPDOT) on solid phase]

Paipa, C. ,  Poblete, E. ,  Toral Ponce, María ,  [Simultaneous determination of iron and copper in pregnant liquid solutions]

Orellana, Sandra ,  Soto Salazar, César ,  Toral Ponce, María ,  [UV–vis, IR and 1H NMR spectroscopic studies and characterization of ionic-pair crystal violet–oxytetracycline]

Soto Salazar, César ,  Contreras, David ,  Orellana, Sandra ,  Toral Ponce, María ,  Yáñez, Jorge ,  [Simultaneous Determination of Albendazole and Praziquantel by Second Derivative Spectrophotometry and Multivariated Calibration Methods in Veterinary Pharmaceutical Formulation]

Escobar, Claudio ,  Soto Salazar, César ,  Toral Ponce, María ,  [Optimization of the electrocoagulation process for the removal of copper, lead and cadmium in natural waters and simulated wastewater]

Toral Ponce, María ,  Rivas, Jorge ,  Sadías, Marta ,  Soto Salazar, César ,  Orellana, Sandra ,  [Simultaneous determination of acetaminophen and tramadol by second derivative spectrophotometry]

Paipa, C. ,  Mateo, Magda ,  Godoy, I. ,  Poblete, E. ,  Toral Ponce, María ,  Vargas Valero, Tomás ,  [Comparative study of alternative methods for the simultaneous determination of Fe+3 and Fe+2 in leaching solutions and in acid mine drainages]

Toral Ponce, María ,  Sabay, Tamara ,  Orellana, Sandra L. ,  Richter Duk, Pablo ,  [Determination of Oxytetracycline from Salmon Muscle and Skin by Derivative Spectrophotometry]

Manzo, Valentina ,  Orielle, Navarro ,  Honda, Luis ,  Sánchez, Karen ,  Toral Ponce, María ,  Richter Duk, Pablo ,  [Determination of crystal violet in water by direct solid phase spectrophotometry after rotating disk sorptive extraction]

Richter Duk, Pablo ,  Toral Ponce, María ,  Tapia, A. Eugenia ,  Bunster, Mauricio ,  Ubilla, Claudia ,  [Cinética diferencial de cobre y zinc con zincón en un sistema FIA/Flujo interrumpido. Determinación de cobre y zinc en latones.]