SANDA VOINEA, THEODOR AXENIE, ALEXANDRA SERBAN, CORNELIA NICHITA EVALUATION OF THE ENVIRONMENTAL IMPACT BY FTIR GAS ANALYSIS OF ORGANIC SOLVENTS USED IN THE PHARMACEUTICAL INDUSTRY This paper presents the impact on the atmospheric environment of organic solvents used in pharmaceutical industry, investigated by FTIR gas analysis. The experimental data emphasized that this technique represents a fast and efficient method of analysis for gaseous emissions from studied solvents (ethanol, methanol, acetic acid). The study of the spectra samples indicates a good capability of the method to detect gases in indoor air from different concentrations and volumes of solvents in mixed solutions up to units of ppm and hundreds of micro liters. The results emphasized a good correlation between the concentrations of the solvents in the gaseous phase from the environment and the concentration of the solvent from the analyzed solutions. Moreover, the study shows the persistence in time of the air pollution in the technological areas of pharmaceutical and chemical industries.
Keywords: organic solvents, FTIR gas analysis, indoor air quality