Exactitud y precisión a nivel de laboratorio en la determinación de au en minerales mediante bomba calorimétrica a partir del concentrado de carbón activado.

• Autores: González Mendoza, Rita Jeanette, Lostaunau Ardiles, Luis Alberto
• Formato: tesis de grado
• Fecha de Publicación: 2012
• Institución: Universidad Nacional de Trujillo
• Repositorio: UNITRU-Tesis
• Lenguaje: español
• OAI Identifier: oai:dspace.unitru.edu.pe:20.500.14414/3369
• Enlace del recurso: https://hdl.handle.net/20.500.14414/3369
• Nivel de acceso: acceso abierto
• Materia: Determinación de au en minerales, Bomba calorimétrica, Concentrado de carbón activado.

The present work of Investigation, it was based on a reaction of combustion using a calorimeter type bomb to separate Gold of a concentrate with activated coal. The aim is to determine the accuracy and precision of the method of combustion in the bomb calorimetric after the process of cianuración, absorption with activated coal and his later quantification for atomic absorption, demonstrating so by this method the major recovery of Gold is obtained. For the fulfillment of our aims, it was necessary to work with golden boss's diverse standards which were injected to a gram of coal approximately, and one took to combustion the sample. After obtained the sample combustion totally, the residues that stay remove to digestar using royal water, we dilute with nitric acid 1 % for his later reading in the equipment of Atomic Absorption and to obtain the golden concentration. The experimental procedure repeated three times to execute the statistical evaluation as the standard diversion and the coefficient of variation and it could determine the accuracy and precision of the method in the golden determination by means of combustion in the bomb calorimetric. The concentrations of the standards were of 0.08, 0.10 and 0.12 ppm having a recovery of 0.0785, 0.0986, 0.1185 ppm, respectively.