Determinación de cianuro en sistemas acuosos aplicando métodos instrumentales.

Abstract

In Ecuador, mining is an activity that generates income of 840 million dollars, and gold (Au) is the sixth most exported product. This attraction leads to illegal extractive mining that does not measure the environmental consequences, thus leading to contamination in the aqueous systems surrounding this activity, with CN cyanide being the main pollutant, Cyanide CN is the main pollutant, and its concentration can be determined by various methods including spectrophotometry and volumetry. For the development of this research, the general objective was to determine the concentration of cyanide by applying instrumental methods used according to the literature to determine the levels of contamination in aqueous systems, For this purpose, a descriptive methodology is used by means of a bibliographic review of reports, theses and articles in academic journals in order to conclude that the levels of cyanide in the country are higher than those permitted, the main cause being illegal mining, the factors of which are the poor handling of chemical waste. On the other hand, 77% of the authors in their research applied the spectrophotometric method to determine the concentration of CN, while 23% opted for volumetry.