Application of the Atomic Absorption Technical to Available the Concentration of Silver Ions Incorporated in Glass Matrix by Ionic Exchange Process

Abstract

Ion specimens can be incorporated in glasses or natural clays by ionic exchange process with different concentrations dependent of matrix´s type and of the ionic exchange parameters. In particular, the incorporation of silver ions presents high interest by its biocidal properties. A compound contending ion silver specimens presents bactericidal and fungicidal properties with effect proportional to ion concentration. This work presents results about application of the atomic absorption technical to determine the silver ion concentration incorporated in a glass matrix by ionic exchange process. The ionic exchange experiments were realized with different AgNO3 concentration and constant temperature. After ionic exchange process, the glass samples were submitted to characterization by Energy Dispersive X-Ray Spectroscopy and Atomic Absorption Techniques. The comparative results between different techniques showed that atomic absorption technical is adequate to determine ion silver concentration incorporated in the glass matrix after ionic exchange process.

Biocidal Glasses with High Performance: Comparison of the Antimicrobial Action Obtained by Use of Different Metal Ions

“…For all samples, microbiological tests were carried out to evaluate the influence of the ionic solution and of the reaction time on the production of the biocidal glass. To evaluate the antimicrobial action the zone of inhibition by the biocidal glass was adopted as being a circle [14].…”

“…This procedure was repeated for each powdered glass sample. The atomic absorption technique was applied to these solutions and the appropriate calculations to determine the metal ions amount in each sample according Mendes, 2010 [14]. All experiments were performed in triplicate.…”